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Author SHA1 Message Date
Yi Zhang
b92f48a4f8 v2.0.1 add tin examples 2025-05-19 12:40:06 +08:00
Yi Zhang
3789f373ce tmp 2025-05-16 08:49:00 +08:00
Yi Zhang
5f4d6267b6 add all 2025-05-12 20:05:54 +08:00
196 changed files with 7074 additions and 584005 deletions
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2
.gitignore vendored
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@ -1,3 +1,5 @@
.DS_Store
build/
.vscode/
data/
bin/

212
CMakeLists.txt
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@ -1,187 +1,75 @@
cmake_minimum_required(VERSION 3.15.2)
# 设置项目名称与语言
project(GCTL_EXAMPLES VERSION 1.0)
project(GCTL_TUTORIALS VERSION 2.0.1)
# 设置编译选项
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -O3")
if(WIN32)
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -O3")
else()
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} --std=c++11 -O3")
if(CMAKE_SYSTEM_NAME STREQUAL "Darwin")
# ExprTK库在macOS 15.4中编译会有错误 添加以下命令对应检查项
add_compile_options(-Wno-missing-template-arg-list-after-template-kw)
endif()
# 设置可执行文件的输出地址
set(EXECUTABLE_OUTPUT_PATH ${PROJECT_BINARY_DIR}/bin)
set(EXECUTABLE_OUTPUT_PATH ${PROJECT_SOURCE_DIR}/bin)
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -O3")
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -O3")
find_package(GCTL)
find_package(GCTL_MESH)
find_package(GCTL_POTENTIAL)
find_package(GCTL_SEISMIC)
find_package(GCTL_ELECMAG)
find_package(GCTL_GRAPHIC)
find_package(GCTL_OPTIMIZATION)
find_package(PkgConfig)
pkg_search_module(EDITLINE QUIET libeditline)
if(GCT_FOUND)
include_directories(${GCTL_INC_DIR})
endif()
find_package(GCTL QUIET)
find_package(GCTL_MESH QUIET)
find_package(GCTL_OPTIMIZATION QUIET)
find_package(GCTL_POTENTIAL QUIET)
include_directories(${GCTL_INC_DIR})
include_directories(${GCTL_MESH_INC_DIR})
include_directories(${GCTL_OPTIMIZATION_INC_DIR})
include_directories(${GCTL_POTENTIAL_INC_DIR})
if(GCTL_OPENMP)
message(STATUS "GCTL is compiled with OpenMP support.")
find_package(OpenMP REQUIRED)
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${OpenMP_CXX_FLAGS}")
set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} ${OpenMP_EXE_LINKER_FLAGS}")
message(STATUS "Platform: " ${CMAKE_HOST_SYSTEM_NAME})
message(STATUS "Install prefix: " ${CMAKE_INSTALL_PREFIX})
message(STATUS "Processor: " ${CMAKE_HOST_SYSTEM_PROCESSOR})
if(GCTL_FOUND)
message(STATUS "GCTL Version: " ${GCTL_VERSION})
endif()
if(GCTL_MESH_FOUND)
include_directories(${GCTL_MESH_INC_DIR})
endif()
if(GCTL_POTENTIAL_FOUND)
include_directories(${GCTL_POTENTIAL_INC_DIR})
endif()
if(GCTL_SEISMIC_FOUND)
include_directories(${GCTL_SEISMIC_INC_DIR})
endif()
if(GCTL_ELECMAG_FOUND)
include_directories(${GCTL_ELECMAG_INC_DIR})
endif()
if(GCTL_GRAPHIC_FOUND)
include_directories(${GCTL_GRAPHIC_INC_DIR})
message(STATUS "GCTL_MESH Version: " ${GCTL_MESH_VERSION})
endif()
if(GCTL_OPTIMIZATION_FOUND)
include_directories(${GCTL_OPTIMIZATION_INC_DIR})
message(STATUS "GCTL_OPTIMIZATION Version: " ${GCTL_OPTIMIZATION_VERSION})
endif()
find_package(LibLCG)
if(LibLCG_FOUND)
include_directories(${LibLCG_INC_DIR})
if(GCTL_POTENTIAL_FOUND)
message(STATUS "GCTL_POTENTIAL Version: " ${GCTL_POTENTIAL_VERSION})
endif()
macro(add_example name switch)
if(${switch})
# 添加可执行程序名称
add_executable(${name} examples/${name}.cpp)
# 设置安装后的动态库调用地址
set_target_properties(${name} PROPERTIES INSTALL_RPATH ${CMAKE_INSTALL_PREFIX}/lib)
target_link_libraries(${name} PUBLIC OpenMP::OpenMP_CXX)
macro(add_toolkit ex_dir name lib1 lib2 lib3 lib4)
#aux_source_directory(${name} src/${ex_dir}/${name}.cpp)
add_executable(${name} src/${ex_dir}/${name}.cpp)
set_target_properties(${name} PROPERTIES INSTALL_RPATH /usr/local/lib)
set_target_properties(${name} PROPERTIES CXX_STANDARD 17 CXX_STANDARD_REQUIRED ON)
# 链接动态库
if(GCTL_FOUND)
target_link_libraries(${name} PUBLIC ${GCTL_LIB})
endif()
if(${lib1})
target_link_libraries(${name} PUBLIC ${GCTL_LIB})
endif()
if(GCTL_MESH_FOUND)
target_link_libraries(${name} PUBLIC ${GCTL_MESH_LIB})
endif()
if(${lib2})
target_link_libraries(${name} PUBLIC ${GCTL_MESH_LIB})
endif()
if(GCTL_POTENTIAL_FOUND)
target_link_libraries(${name} PUBLIC ${GCTL_POTENTIAL_LIB})
endif()
if(${lib3})
target_link_libraries(${name} PUBLIC ${GCTL_OPTIMIZATION_LIB})
endif()
if(GCTL_SEISMIC_FOUND)
target_link_libraries(${name} PUBLIC ${GCTL_SEISMIC_LIB})
endif()
if(GCTL_ELECMAG_FOUND)
target_link_libraries(${name} PUBLIC ${GCTL_ELECMAG_LIB})
endif()
if(GCTL_GRAPHIC_FOUND)
target_link_libraries(${name} PUBLIC ${GCTL_GRAPHIC_LIB})
endif()
if(GCTL_OPTIMIZATION_FOUND)
target_link_libraries(${name} PUBLIC ${GCTL_OPTIMIZATION_LIB})
endif()
if(LibLCG_FOUND)
target_link_libraries(${name} PUBLIC ${LibLCG_LIB})
endif()
endif()
if(${lib4})
target_link_libraries(${name} PUBLIC ${GCTL_POTENTIAL_LIB})
endif()
endmacro()
add_example(array_ex ON)
add_example(sparray_ex ON)
add_example(sparray2d_ex ON)
add_example(spmat_ex ON)
add_example(spmat_ex2 ON)
add_example(spmat_ex3 ON)
add_example(spmat_ex4 ON)
add_example(spmat_ex5 ON)
add_example(spmat_ex6 ON)
add_example(spmat_ex7 ON)
add_example(sptr_ex ON)
add_example(stream_ex ON)
add_example(stream_template_ex ON)
add_example(vector_ex ON)
add_example(spmat_inversion_ex ON)
add_example(find_index_ex ON)
add_example(difference_1d_ex ON)
add_example(dynamic_stddev_ex ON)
add_example(ellipse_filter_ex ON)
add_example(gaussian_hill_ex ON)
add_example(mat_inverse_ex ON)
add_example(svd_ex ON)
add_example(track_ellipse_ex ON)
add_example(frac_model_ex ON)
add_example(difference_2d_ex ON)
add_example(geometry2d_ex ON)
add_example(point2d_rotate_ex ON)
add_example(point_ex ON)
add_example(tensor_ex ON)
add_example(entity_ex ON)
add_example(cut_2d_tri_mesh_ex ON)
add_example(cut_3d_tri_mesh_ex ON)
add_example(tetra_neighbor_ex ON)
add_example(gobser_tri2d_ex ON)
add_example(gobser_rect2d_ex ON)
add_example(gobser_polygon_ex ON)
add_example(gobser_tricone_ex ON)
add_example(gobser_block_ex ON)
add_example(gobser_tesseroid_ex ON)
add_example(gobser_tetra_sph_ex ON)
add_example(mobser_tesseroid_ex ON)
add_example(rtp_ex ON)
add_example(drtp_ex ON)
add_example(gobser_sphere_ex ON)
add_example(grav_gradient_ex ON)
add_example(mobser_block_ex ON)
add_example(mobser_tetra_ex ON)
add_example(gobser_tri_ex ON)
add_example(gobser_tri_sph_ex ON)
add_example(gobser_tetra_ex ON)
add_example(getoption_ex ON)
add_example(heap_sort_ex ON)
add_example(flags_parser_ex ON)
add_example(progressbar_ex ON)
add_example(basic_io_ex ON)
add_example(gmsh_io_ex ON)
add_example(surfer_io_ex ON)
add_example(triangle_io_ex ON)
add_example(xyz_io_ex ON)
add_example(text_io_ex ON)
add_example(read_netcdf_ex ON)
add_example(save_netcdf_ex ON)
add_example(griding_ex ON)
add_example(mesh_sample1_ex ON)
add_example(mesh_sample4_ex ON)
add_example(mesh_sample6_ex ON)
add_example(mesh_sample7_ex ON)
add_example(mesh_sample8_ex ON)
add_example(mesh_sample9_ex ON)
add_example(mesh_sample10_ex ON)
add_example(mesh_sample2_ex ON)
add_example(mesh_sample3_ex ON)
add_example(mesh_sample5_ex ON)
add_example(wavelet_ex ON)
add_example(traveltime_tri2d_ex ON)
add_example(traveltime_tri2d_ex2 ON)
add_example(traveltime_tri2d_ex3 ON)
add_example(traveltime_tet3d_ex ON)
add_example(traveltime_tet3d_ex2 ON)
add_example(gmt_plot_grid_ex ON)
add_example(parse_string ON)
if(GCTL_FOUND AND GCTL_MESH_FOUND)
add_toolkit(mesh create_tin_ex1 ON ON OFF OFF)
add_toolkit(mesh create_tin_ex2 ON ON OFF OFF)
add_toolkit(mesh create_tin_ex3 ON ON OFF OFF)
add_toolkit(mesh create_tin_ex4 ON ON OFF OFF)
endif()

11
config.sh
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@ -1,11 +0,0 @@
#!/bin/bash
cmd=${1}
if [[ ${cmd} == "configure" && ! -d "build/" ]]; then
mkdir build && cd build && cmake .. -DCMAKE_BUILD_TYPE=Release
elif [[ ${cmd} == "configure" ]]; then
cd build && rm -rf * && cmake .. -DCMAKE_BUILD_TYPE=Release
elif [[ ${cmd} == "build" ]]; then
cd build && make
fi

24
data/cube/cube.geo
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@ -1,24 +0,0 @@
//+
Point(1) = {40, 40, -20, 5};
//+
Point(2) = {60, 40, -20, 5};
//+
Point(3) = {60, 60, -20, 5};
//+
Point(4) = {40, 60, -20, 5};
//+
Line(1) = {4, 1};
//+
Line(2) = {1, 2};
//+
Line(3) = {2, 3};
//+
Line(4) = {3, 4};
//+
Curve Loop(1) = {1, 2, 3, 4};
//+
Plane Surface(1) = {1};
//+
Extrude {0, 0, -40} {
Surface{1};
}

725
data/cube/cube.msh
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@ -1,725 +0,0 @@
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0
3
0 103 40 1 1
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# Generated by triangle -pq30a4ADn forward_mesh.poly

24328
data/fmm2d/sample_mesh.2.msh
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117
data/fmm2d/sample_mesh.poly
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@ -1,117 +0,0 @@
# vectice
53 2 1 1
0 0 0 0 1
1 240 0 0 1
2 240 100 0 1
3 0 100 0 1
4 41.9 27.5 1 0
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9 117.6 32.2 1 0
10 135.6 34.4 1 0
11 155.3 36.1 1 0
12 171.1 39.1 1 0
13 178.9 44.6 1 0
14 179.7 51.9 1 0
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16 159.2 52.4 1 0
17 143.8 47.6 1 0
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40 96.7 82.3 3 0
41 106.5 79.3 3 0
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50 117.2 83.2 3 0
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# segments
53 1
0 0 1 1
1 1 2 1
2 2 3 1
3 3 0 1
4 4 5 0
5 5 6 0
6 6 7 0
7 7 8 0
8 8 9 0
9 9 10 0
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11 11 12 0
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13 13 14 0
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15 15 16 0
16 16 17 0
17 17 18 0
18 18 19 0
19 19 20 0
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21 21 22 0
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# holes
0
# attributes
3
0 103 40 1
1 62 58 2
2 130 73 3

9665
data/fmm2d/sample_model.txt
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514
data/fmm3d/cube.1.edge
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@ -1,514 +0,0 @@
512 1
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479 475 358 -1
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# Generated by tetgen -pa4000 cube.poly

124671
data/fmm3d/cube.1.ele
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File diff suppressed because it is too large Load Diff

15576
data/fmm3d/cube.1.face
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File diff suppressed because it is too large Load Diff

295307
data/fmm3d/cube.1.msh
View File

File diff suppressed because it is too large Load Diff

23512
data/fmm3d/cube.1.node
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File diff suppressed because it is too large Load Diff

23
data/fmm3d/cube.poly
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@ -1,23 +0,0 @@
8 3 0 1
0 0 0 0 1
1 1000 0 0 1
2 1000 500 0 1
3 0 500 0 1
4 0 0 500 1
5 1000 0 500 1
6 1000 500 500 1
7 0 500 500 1
6 1
1
4 0 1 2 3 1
1
4 4 5 6 7 1
1
4 0 1 5 4 1
1
4 1 2 6 5 1
1
4 2 3 7 6 1
1
4 3 0 4 7 1
0

3
data/fmm3d/get_mesh.sh
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@ -1,3 +0,0 @@
#!/bin/bash
tetgen -pa4000 cube.poly

12
data/option_sample.txt
View File

@ -1,12 +0,0 @@
# this is an annotation
range = 100/1000/200/2000/full_range
interval = 10/10
weight = 120.12
model-file = test.txt
# you can insert empty lines too
model-tag = model1
model-tag = model2
model-tag = model3
out-model = example.msh

BIN
data/out/array_ex_out.mat
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Binary file not shown.

129
data/out/difference_1d.txt
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@ -1,129 +0,0 @@
# ori o1 o2 o3 o4
0.198669 0.217042 -0.0103312 -0.0109239 0.000616416
0.406085 0.19779 -0.0192517 -0.0101277 0.00113673
0.59425 0.174078 -0.0281722 -0.0082527 0.00133559
0.754242 0.142114 -0.0357571 -0.00673732 0.00169517
0.878477 0.103412 -0.0416468 -0.00490254 0.00197439
0.961065 0.0598071 -0.0455622 -0.00283534 0.00216001
0.998091 0.0133673 -0.0473175 -0.000633718 0.00224323
0.9878 -0.0337062 -0.0468296 0.00159794 0.0022201
0.930679 -0.0791818 -0.0441216 0.00375385 0.00209172
0.829436 -0.120904 -0.0393219 0.00573179 0.00186417
0.688871 -0.156894 -0.032658 0.007438 0.00154825
0.515649 -0.185445 -0.0244459 0.0087916 0.00115893
0.317981 -0.205206 -0.0150748 0.00972839 0.000714667
0.105237 -0.215238 -0.00498909 0.010204 0.000236523
-0.112495 -0.215066 0.00533316 0.0101958 -0.000252834
-0.324894 -0.204698 0.0154026 0.00970431 -0.000730205
-0.521891 -0.184626 0.0247418 0.00875273 -0.00117296
-0.694145 -0.155801 0.032908 0.0073862 -0.0015601
-0.833492 -0.11959 0.0395142 0.0056695 -0.00187329
-0.933325 -0.077709 0.044247 0.00368403 -0.00209766
-0.98891 -0.0321444 0.0468822 0.0015239 -0.00222259
-0.997614 0.0149441 0.0472948 -0.000708472 -0.00224215
-0.959022 0.0613242 0.0454653 -0.00290726 -0.00215542
-0.874965 0.104797 0.0414803 -0.00496822 -0.0019665
-0.749428 0.143302 0.0355289 -0.00679364 -0.00168435
-0.588362 0.175013 0.027893 -0.00829699 -0.00132235
-0.399403 0.198427 0.0189349 -0.009407 -0.000897664
-0.191509 0.212434 0.00907904 -0.010071 -0.000430419
0.0254643 0.216369 -0.00120721 -0.0102576 5.72315e-05
0.24123 0.210048 -0.0114362 -0.00995794 0.000542169
0.44556 0.193768 -0.0211231 -0.00918615 0.0010014
0.628766 0.168302 -0.0298085 -0.00797887 0.00141316
0.782164 0.134858 -0.0370808 -0.00639332 0.00175793
0.898481 0.0950195 -0.0425952 -0.00450468 0.00201935
0.972203 0.0506768 -0.0460902 -0.00240249 0.00218504
0.999835 0.00393166 -0.0474002 -0.000186392 0.00224715
0.980067 -0.0429999 -0.046463 0.00203854 0.00220272
0.913835 -0.0878929 -0.0433231 0.00416683 0.00205386
0.804281 -0.128619 -0.0381293 0.00609757 0.00180763
0.656597 -0.163248 -0.0311279 0.00773925 0.00147571
0.477785 -0.190137 -0.0226508 0.00901402 0.00107383
0.276323 -0.208013 -0.0130999 0.00986146 0.00062104
0.0617601 -0.216026 -0.00292792 0.0102414 0.000138807
-0.15573 -0.213799 0.00738286 0.0101358 -0.000350007
-0.365838 -0.201436 0.0173436 0.00954966 -0.000822227
-0.558602 -0.179523 0.0264822 0.00851081 -0.00125547
-0.724883 -0.149099 0.0343653 0.00706849 -0.00162919
-0.8568 -0.111607 0.0406192 0.00529106 -0.00192567
-0.948097 -0.0688236 0.0449474 0.00326279 -0.00213086
-0.994447 -0.0227775 0.0471447 0.00107984 -0.00223504
-0.993652 0.0243484 0.0471071 -0.00115431 -0.00223325
-0.94575 0.0703199 0.0448361 -0.00333373 -0.00212559
-0.853012 0.112958 0.0404396 -0.0053551 -0.00191716
-0.719835 0.150241 0.0341259 -0.0071226 -0.00161784
-0.552531 0.180401 0.0261944 -0.00855243 -0.00124182
-0.359033 0.202008 0.017021 -0.00957681 -0.000806934
-0.148514 0.214039 0.00704077 -0.0101472 -0.000333789
0.0690453 0.215923 -0.0032733 -0.0102365 0.000155181
0.283332 0.20757 -0.0134322 -0.00984049 0.000636793
0.484186 0.189377 -0.0229543 -0.00897799 0.00108822
0.662086 0.162206 -0.0313882 -0.00768985 0.00148805
0.808598 0.127345 -0.038334 -0.00603716 0.00181734
0.916776 0.0864466 -0.0434625 -0.00409826 0.00206047
0.981491 0.0414501 -0.0465305 -0.00196506 0.00220592
0.999676 -0.00551149 -0.0473926 0.000261289 0.00224679
0.970468 -0.0522118 -0.0460079 0.00247525 0.00218114
0.895252 -0.0964368 -0.0424421 0.00457187 0.00201209
0.777594 -0.13609 -0.0368642 0.00645175 0.00174766
0.623072 -0.169291 -0.0295386 0.00802576 0.00140037
0.439012 -0.194467 -0.0208127 0.00921929 0.000986686
0.234138 -0.210423 -0.0111 0.00997574 0.00052623
0.0181652 -0.216404 -0.000861174 0.0102593 4.08265e-05
-0.198669 -0.212125 0.00941851 0.0100564 -0.000446513
-0.406085 -0.19779 0.0192517 0.00937683 -0.000912684
-0.59425 -0.174078 0.0281722 0.0082527 -0.00133559
-0.754242 -0.142114 0.0357571 0.00673732 -0.00169517
-0.878477 -0.103412 0.0416468 0.00490254 -0.00197439
-0.961065 -0.0598071 0.0455622 0.00283534 -0.00216001
-0.998091 -0.0133673 0.0473175 0.000633718 -0.00224323
-0.9878 0.0337062 0.0468296 -0.00159794 -0.0022201
-0.930679 0.0791818 0.0441216 -0.00375385 -0.00209172
-0.829436 0.120904 0.0393219 -0.00573179 -0.00186417
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5
data/prism/griding.sh
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@ -1,5 +0,0 @@
#!/bin/zsh
xyz2nc -t prism_mag_pot.txt -o prism_V -r -30/30/-30/30 -i 0.75/0.75 -c 0,1,3 -l x,y,V
xyz2nc -t prism_mag_grad.txt -o prism_B -r -30/30/-30/30 -i 0.75/0.75 -c 0,1,3,4,5 -l x,y,Bx,By,Bz
xyz2nc -t prism_mag_tensor.txt -o prism_T -r -30/30/-30/30 -i 0.75/0.75 -c 0,1,3,4,5,6,7,8,9,10,11 -l x,y,Txx,Txy,Txz,Tyx,Tyy,Tyz,Tzx,Tzy,Tzz

14
data/prism/prism.1.edge
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# Generated by tetgen -pq prism.poly

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6 4 0
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data/prism/prism.1.face
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# Generated by tetgen -pq prism.poly

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data/prism/prism.1.node
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# Generated by tetgen -pq prism.poly

32
data/prism/prism.poly
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# Part 1 - the node list.
# A bar with 8 nodes in 3d, no attributes, no boundary marker.
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# There is no hole in bar.
0
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30 0.4999999999997863 0 0.7142857143333939
31 1 0.5000000000000239 0.2857142860029753
32 1 0.4999999999997863 0.7142857143333939
33 0.7500000000010296 1 0.249999999999347
34 0.6427777777785997 1 0.6452267573690922
35 0.3566666666674795 1 0.3713605442171652
36 0.2500000000010296 1 0.749999999999347
37 0.5 0.4999999999999999 1
38 0.2500000000008419 0.7500000000008418 1
39 0.7500000000010295 0.7499999999993469 1
40 0.7499999999993471 0.249999999999347 1
41 0.2499999999996735 0.2500000000005148 1
$EndNodes
$Elements
92
1 4 2 1 1 21 35 37 34
2 4 2 1 1 34 37 21 31
3 4 2 1 1 21 35 27 37
4 4 2 1 1 31 37 21 29
5 4 2 1 1 34 32 37 31
6 4 2 1 1 37 27 21 29
7 4 2 1 1 32 30 37 31
8 4 2 1 1 31 30 37 29
9 4 2 1 1 21 35 26 27
10 4 2 1 1 27 37 30 29
11 4 2 1 1 22 21 35 26
12 4 2 1 1 24 31 21 29
13 4 2 1 1 37 41 27 30
14 4 2 1 1 30 37 40 32
15 4 2 1 1 39 32 37 34
16 4 2 1 1 32 30 31 19
17 4 2 1 1 29 31 30 19
18 4 2 1 1 26 35 17 36
19 4 2 1 1 30 18 28 29
20 4 2 1 1 30 28 27 29
21 4 2 1 1 11 33 35 23
22 4 2 1 1 27 18 28 30
23 4 2 1 1 34 31 33 20
24 4 2 1 1 29 24 31 19
25 4 2 1 1 16 38 36 34
26 4 2 1 1 11 21 35 22
27 4 2 1 1 11 21 23 35
28 4 2 1 1 37 16 34 38
29 4 2 1 1 36 26 35 27
30 4 2 1 1 36 17 26 27
31 4 2 1 1 21 12 26 22
32 4 2 1 1 12 21 26 25
33 4 2 1 1 18 27 41 30
34 4 2 1 1 40 30 32 19
35 4 2 1 1 12 28 25 26
36 4 2 1 1 31 34 32 20
37 4 2 1 1 16 37 34 39
38 4 2 1 1 38 5 36 27
39 4 2 1 1 31 33 3 23
40 4 2 1 1 19 24 31 2
41 4 2 1 1 19 29 24 2
42 4 2 1 1 4 22 35 26
43 4 2 1 1 27 38 13 37
44 4 2 1 1 41 27 13 37
45 4 2 1 1 41 6 18 30
46 4 2 1 1 28 1 25 29
47 4 2 1 1 27 6 18 41
48 4 2 1 1 39 32 34 20
49 4 2 1 1 21 9 24 29
50 4 2 1 1 21 9 29 25
51 4 2 1 1 23 31 21 10
52 4 2 1 1 10 31 21 24
53 4 2 1 1 14 41 37 30
54 4 2 1 1 31 33 20 3
55 4 2 1 1 5 38 13 27
56 4 2 1 1 17 36 5 27
57 4 2 1 1 22 4 35 11
58 4 2 1 1 7 40 32 19
59 4 2 1 1 30 40 7 19
60 4 2 1 1 32 39 8 20
61 4 2 1 1 18 1 28 29
62 4 2 1 1 34 8 39 20
63 4 2 1 1 13 6 27 41
64 4 2 1 1 23 3 31 10
65 4 2 1 1 24 10 31 2
66 4 2 1 1 9 24 29 2
67 4 2 1 1 25 1 9 29
68 4 2 1 1 35 17 4 26
69 4 2 1 1 41 14 6 30
70 4 2 1 1 12 22 4 26
71 4 2 1 1 40 39 32 37
72 4 2 1 1 37 40 14 30
73 4 2 1 1 39 40 32 15
74 4 2 1 1 11 3 33 23
75 4 2 1 1 30 40 14 7
76 4 2 1 1 39 15 32 8
77 4 2 1 1 7 32 40 15
78 4 2 1 1 36 5 38 16
79 4 2 1 1 28 25 1 12
80 4 2 1 1 39 16 8 34
81 4 2 1 1 38 34 35 36
82 4 2 1 1 35 34 38 37
83 4 2 1 1 35 27 38 36
84 4 2 1 1 38 27 35 37
85 4 2 1 1 25 26 27 21
86 4 2 1 1 27 26 25 28
87 4 2 1 1 27 29 25 21
88 4 2 1 1 25 29 27 28
89 4 2 1 1 23 31 34 21
90 4 2 1 1 34 31 23 33
91 4 2 1 1 34 35 23 21
92 4 2 1 1 23 35 34 33
$EndElements

4
data/table_sample.txt
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@ -1,4 +0,0 @@
# name age gender weight
ZhangYi 23 Man 78.2
WangSaiXin 21 Woman 55.0
Little 12 Unknown 45.1

44
data/tess/tess.geo
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//this file is created by Tesseroid_creater
//longitude: 40-50
//latitude: 30-40
//radius: 800-1000
lc = 1.0;
Point(1) = {0, 0, 0, lc};
Point(2) = {530.7311585351508, 445.3363193811355, 399.9999999999999, lc*10.69599819922607};
Point(3) = {0, 0, 399.9999999999999, lc*10.69599819922607};
Point(4) = {445.3363193811358, 530.7311585351506, 399.9999999999999, lc*10.69599819922607};
Point(5) = {663.4139481689385, 556.6703992264194, 499.9999999999999, lc*10.69599819922607};
Point(6) = {0, 0, 499.9999999999999, lc*10.69599819922607};
Point(7) = {556.6703992264197, 663.4139481689382, 499.9999999999999, lc*10.69599819922607};
Point(8) = {469.4592710667722, 393.9231012048832, 514.2300877492315, lc*10.69599819922607};
Point(9) = {0, 0, 514.2300877492315, lc*10.69599819922607};
Point(10) = {393.9231012048835, 469.459271066772, 514.2300877492315, lc*10.69599819922607};
Point(11) = {586.8240888334652, 492.403876506104, 642.7876096865393, lc*10.69599819922607};
Point(12) = {0, 0, 642.7876096865393, lc*10.69599819922607};
Point(13) = {492.4038765061043, 586.824088833465, 642.7876096865393, lc*10.69599819922607};
Circle(1) = {13, 12, 11};
Circle(2) = {10, 9, 8};
Circle(3) = {7, 6, 5};
Circle(4) = {4, 3, 2};
Circle(5) = {8, 1, 2};
Circle(6) = {11, 1, 5};
Circle(7) = {10, 1, 4};
Circle(8) = {13, 1, 7};
Line(9) = {5, 2};
Line(10) = {7, 4};
Line(11) = {11, 8};
Line(12) = {13, 10};
Line Loop(13) = {1, 6, -3, -8};
Ruled Surface(14) = {13};
Line Loop(15) = {2, 5, -4, -7};
Ruled Surface(16) = {15};
Line Loop(17) = {1, 11, -2, -12};
Ruled Surface(18) = {17};
Line Loop(19) = {3, 9, -4, -10};
Ruled Surface(20) = {19};
Line Loop(21) = {6, 9, -5, -11};
Plane Surface(22) = {21};
Line Loop(23) = {8, 10, -7, -12};
Plane Surface(24) = {23};
Surface Loop(25) = {24, 18, 14, 22, 16, 20};
Volume(26) = {25};

5461
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# GCTL核心字符串处理模块文档（gctl/lib/core/str.h）
## 文件概述
```cpp
#include "exceptions.h" // 异常处理依赖
#include <cmath> // 数学函数
#include <vector> // 向量容器
#include <sstream> // 字符串流
```
本模块提供字符串与基础数据类型间的转换、字符串解析处理等核心功能，包含以下主要功能：
- 类型与字符串的相互转换
- 字符串模式替换与路径处理
- 带分隔符的字符串解析
- 特殊数值（NaN/Inf）转换
- 随机字符串生成
## 核心功能模块
### 1. 类型转换
#### 模板函数 `type2ss`
```cpp
template <typename ObjValType>
void type2ss(ObjValType in_val, std::stringstream &out_ss)
```
- **功能**：将任意类型转换为字符串流
- **参数**：
- `in_val`：输入值（支持基础数据类型）
- `out_ss`：输出字符串流（需预先声明）
- **示例**：
```cpp
std::stringstream ss;
gctl::type2ss(3.14, ss);
std::cout << ss.str(); // 输出"3.14"
```
#### 模板函数 `str2type`
```cpp
template <typename OutValType>
int str2type(std::string in_str, OutValType &out_val, char sep = ' ')
```
- **功能**：带分隔符的字符串到类型转换
- **参数**：
- `in_str`：输入字符串
- `out_val`：输出值（引用返回）
- `sep`：分隔符（默认空格）
- **返回值**：
- 0：转换成功
- -1：转换失败
- **注意**：自动替换分隔符为空格后进行解析
### 2. 向量处理
#### 数值向量转换 `type2str_vector`
```cpp
template <typename ValueType>
void type2str_vector(const std::vector<ValueType> &in_vec,
std::vector<std::string> &out_vec)
```
- **功能**：将数值向量转换为字符串向量
- **参数**：
- `in_vec`：输入数值向量
- `out_vec`：输出字符串向量（自动清空原有内容）
#### 二维向量解析 `str2type_vector2d`
```cpp
// 基础版本
template <typename ValueType>
void str2type_vector2d(...)
// 变参模板版本
template <typename ValueType, typename... Args>
void str2type_vector2d(const std::vector<std::vector<std::string>> &vec2d,
std::string order_str,
std::vector<ValueType> &vec, Args&... rest)
```
- **新特性**：
- 支持多个输出参数，按order_str顺序解析
- 示例：`order_str="0,2,1"` 解析第0、2、1列到不同向量
- **异常**：统一抛出`std::runtime_error`
#### 二维向量生成 `type2str_vector2d`
```cpp
template <typename ValueType>
void type2str_vector2d(std::vector<std::vector<ValueType>> &vec2d,
const std::vector<std::string> &vec)
template <typename ValueType, typename... Args>
void type2str_vector2d(std::vector<std::vector<ValueType>> &vec2d,
const std::vector<std::string> &vec, Args&... rest)
```
- **功能**：批量转换多个字符串向量到数值二维向量
- **典型应用**：构建CSV格式的数据矩阵
### 3. 高级模板功能
#### 变参字符串解析 `parse_string_to_value`
```cpp
template <typename ValueType, typename... Args>
int parse_string_to_value(std::string val_str, char separator,
bool throw_err, ValueType &fst_val, Args&... rest)
```
- **功能**：解析含多个值的字符串到不同变量
- **参数顺序**：
1. 输入字符串
2. 分隔符
3. 是否抛出异常
4. 输出参数列表（至少1个）
- **返回值**：成功解析的参数个数
- **示例**：
```cpp
int a; double b; std::string c;
parse_string_to_value("5,3.14,text", ',', true, a, b, c);
```
### 4. 字符串操作
#### 全局替换 `replace_all`
```cpp
int replace_all(std::string& new_str, const std::string& old_str,
const std::string& old_value, const std::string& new_value)
```
- **功能**：全量替换字符串中的子串
- **参数**：
- `new_str`：替换后的新字符串（输出）
- `old_str`：原始字符串
- `old_value`：待替换的子串
- `new_value`：新子串
- **返回值**：替换次数
#### 路径补全 `patch_string`
```cpp
std::string patch_string(std::string in_str, std::string patch_str)
```
- **功能**：智能补全路径字符串
- **示例**：
```cpp
auto path = gctl::patch_string("/data", "/"); // 返回"/data/"
```
- **逻辑**：检查末尾是否已包含目标字符串，若否则追加
### 4. 特殊数值处理
#### 安全双精度转换 `str2double`
```cpp
double str2double(std::string instr)
```
- **功能**：转换字符串到double，支持：
- Fortran风格的科学计数法（如"1.23D+04"）
- NaN/Infinity的特殊处理
- **实现**：自动替换'D'为'E'后使用标准库转换
### 5. 实用工具函数
#### 流转换函数 `str2ss`
```cpp
void str2ss(std::string in_str, std::stringstream &out_ss, std::string delimiter = "")
```
- **功能**：将字符串转换为预处理后的字符串流
- **参数**：
- `delimiter`：将指定分隔符替换为空格
- `out_ss`：输出流（自动清空原有内容）
- **应用场景**：处理CSV等格式数据
#### 随机字符串生成
```cpp
void random_char(unsigned int length, char* out);
void random_str(unsigned int length, std::string &out_str);
```
- **字符范围**：a-z, A-Z, 0-9
- **安全特性**：线程安全的随机数生成
- **典型应用**：生成临时文件名或验证码
- **示例**：
```cpp
std::string random;
gctl::random_str(8, random); // 可能得到"aB3x9K7f"
```
#### 通用字符串解析 `parse_string_to_vector`
```cpp
template <typename ValueType>
int parse_string_to_vector(std::string val_str, char separator,
std::vector<ValueType> &out_vec)
```
- **增强特性**：
- 自动去除元素首尾空白
- 支持保留带空格的字符串（当ValueType为std::string时）
- **示例**：
```cpp
std::vector<std::string> parts;
parse_string_to_vector("name=John Doe; age=30", ';', parts);
// 得到 ["name=John Doe", "age=30"]
```
### 6. 异常处理规范
#### 统一异常类型
- 所有解析函数均可能抛出 `gctl::runtime_error`
- 错误信息包含：
- 具体失败位置（函数名）
- 原始输入内容片段
- 失败原因（类型不匹配/格式错误等）
#### 错误处理示例
```cpp
try {
std::vector<double> values;
gctl::str2type_vector({"1", "2.5", "abc"}, values);
} catch (const gctl::runtime_error& e) {
std::cerr << "解析错误: " << e.what();
// 输出：解析错误: [gctl::str2type_vector] Failed to parse: abc
}
### 7. 高级解析功能
#### 带引号解析 `parse_string_with_quotes`
```cpp
void parse_string_with_quotes(std::string in_str, std::vector<std::string> &str_vec)
```
- **增强特性**：
- 支持嵌套引号（使用\"转义）
- 自动去除外层引号
- **示例**：
```cpp
输入: `cmd "complex \"name\"" 123`
输出: ["cmd", "complex "name"", "123"]
```
```cpp
void parse_string_with_quotes(std::string in_str, std::vector<std::string> &str_vec)
```
- **功能**：解析含空格和引号的字符串
- **示例**：
```cpp
输入: `cmd "file name.txt" 100`
输出: ["cmd", "file name.txt", "100"]
```
- **规则**：
1. 双引号内的内容视为单个元素
2. 自动去除元素首尾空白
## 使用示例
### 类型转换示例
```cpp
std::vector<std::string> str_vec{"1", "2.5", "3"};
std::vector<int> int_vec;
gctl::str2type_vector(str_vec, int_vec); // 得到[1,2,3]
```
### 配置文件解析
```cpp
std::string config = "max_threads=4, timeout=30s";
int threads;
std::string timeout;
gctl::parse_string_to_value(config, '=', true, threads, timeout);
```
## 注意事项
1. **异常处理**：关键函数（如`str2type_vector`）会抛出`gctl::runtime_error`
2. **线程安全**：函数内部使用局部变量，可安全用于多线程环境
3. **性能建议**：批量处理建议使用vector版本函数
4. **编码要求**：输入字符串建议使用UTF-8编码

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manager.sh Executable file
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#!/bin/bash
if [[ $# == 0 || ${1} == "help" ]]; then
echo "Compiles executables/libraries and maintains installed files. Two tools 'Cmake' and 'stow' are empolyed here. For more information, see https://cmake.org and https://www.gnu.org/software/stow/."
echo ""
echo "School of Earth Sciences, Zhejiang University"
echo "Yi Zhang (yizhang-geo@zju.edu.cn)"
echo ""
echo "Usage: ./manager.sh [option] [Cmake options]"
echo ""
echo "Options:"
echo "(1) configure: Configure Cmake project(s). This option could take extra Cmake options as in <option>=<value>."
echo "(2) build: Build executables/libraries."
echo "(3) install: Install executables/libraries to the directory of CMAKE_INSTALL_PREFIX and sym-links them to the target address. This offers a quick and clean remove of the installed files."
echo "(4) clean: Clean build/ folder(s)."
echo "(5) uninstall: Delete the installed files and sym-links."
echo "(6) info: Print out current setups."
echo "(7) help: Show help information."
exit 0
fi
package=gctl_tutorials
address=/opt/stow
taress=/usr/local
option="-DCMAKE_BUILD_TYPE=Release -DCMAKE_INSTALL_PREFIX=${address}/${package}"
if [[ $# -gt 1 ]]; then
for opt in "$@"; do
if [[ ${opt} != "configure" ]]; then
option="${option} -D${opt}"
fi
done
fi
if [[ ${1} == "configure" && ! -d "build/" ]]; then
mkdir build && cd build && cmake .. ${option}
elif [[ ${1} == "configure" ]]; then
cd build && rm -rf * && cmake .. ${option}
elif [[ ${1} == "build" ]]; then
cd build && make
#elif [[ ${1} == "install" ]]; then
# cd build && sudo make install
# sudo stow --dir=${address} --target=${taress} -S ${package}
elif [[ ${1} == "clean" ]]; then
rm -rf build/
elif [[ ${1} == "uninstall" ]]; then
sudo stow --dir=${address} --target=${taress} -D ${package}
sudo rm -rf ${address}/${package}
elif [[ ${1} == "info" ]]; then
echo "package name:" ${package}
echo "stow address:" ${address}
echo "target address:" ${taress}
echo "Cmake options:" ${option}
fi

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/********************************************************
* ██████╗ ██████╗████████╗██╗
* ██╔════╝ ██╔════╝╚══██╔══╝██║
* ██║ ███╗██║ ██║ ██║
* ██║ ██║██║ ██║ ██║
* ╚██████╔╝╚██████╗ ██║ ███████╗
* ╚═════╝ ╚═════╝ ╚═╝ ╚══════╝
* Geophysical Computational Tools & Library (GCTL)
*
* Copyright (c) 2022 Yi Zhang (yizhang-geo@zju.edu.cn)
*
* GCTL is distributed under a dual licensing scheme. You can redistribute
* it and/or modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation, either version 2
* of the License, or (at your option) any later version. You should have
* received a copy of the GNU Lesser General Public License along with this
* program. If not, see <http://www.gnu.org/licenses/>.
*
* If the terms and conditions of the LGPL v.2. would prevent you from using
* the GCTL, please consider the option to obtain a commercial license for a
* fee. These licenses are offered by the GCTL's original author. As a rule,
* licenses are provided "as-is", unlimited in time for a one time fee. Please
* send corresponding requests to: yizhang-geo@zju.edu.cn. Please do not forget
* to include some description of your company and the realm of its activities.
* Also add information on how to contact you by electronic and paper mail.
******************************************************/
#include "../lib/dnn.h"
using namespace gctl;
void data_generator(const matrix<double> &train_obs, matrix<double> &train_tar)
{
for (int j = 0; j < train_obs.col_size(); j++)
{
train_tar[0][j] = sqrt(train_obs[0][j]*train_obs[0][j] + train_obs[1][j]*train_obs[1][j]);
}
return;
}
int main(int argc, char const *argv[]) try
{
// Prepare the data. In this example, we try to learn the sin() function.
matrix<double> train_obs(2, 1000), train_tar(1, 1000), pre_obs(2, 10), pre_tar(1, 10), predicts(1, 10);
unsigned int seed = 101;
srand(seed);
for (int j = 0; j < 1000; j++)
{
for (int i = 0; i < 2; i++)
{
train_obs[i][j] = random(0.0, 1.0);
}
}
for (int j = 0; j < 10; j++)
{
for (int i = 0; i < 2; i++)
{
pre_obs[i][j] = random(0.0, 1.0);
}
}
data_generator(train_obs, train_tar);
data_generator(pre_obs, pre_tar);
dnn my_nn("Ex-1");
my_nn.add_hind_layer(2, 100, FullyConnected, Identity);
my_nn.add_hind_layer(100, 100, FullyConnected, PReLU);
my_nn.add_hind_layer(100, 100, FullyConnected, PReLU);
my_nn.add_hind_layer(100, 1, FullyConnected, Identity);
my_nn.add_output_layer(RegressionMSE);
my_nn.add_train_set(train_obs, train_tar, 200);
my_nn.show_network();
my_nn.init_network(0.0, 0.1, seed);
sgd_para my_para = my_nn.default_sgd_para();
my_nn.train_network(my_para, gctl::ADAM);
//lgd_para my_para = my_nn.default_lgd_para();
//my_para.flight_times = 5000;
//my_para.lambda = 5e-5;
//my_para.epsilon = 1e-5;
//my_para.batch = 10;
//my_nn.train_network(my_para, gctl::LGD);
my_nn.predict(pre_obs, predicts);
double diff = 0;
for (int i = 0; i < 1; i++)
{
for (int j = 0; j < 10; j++)
{
diff = std::max(fabs(predicts[i][j] - pre_tar[i][j]), diff);
}
}
std::clog << "Max difference = " << diff << "\n";
/*
my_nn.save_network("ex1");
dnn file_nn("File NN");
file_nn.load_network("ex1");
file_nn.show_network();
file_nn.predict(pre_obs, predicts);
diff = 0;
for (int i = 0; i < 1; i++)
{
for (int j = 0; j < 10; j++)
{
diff = std::max(fabs(predicts[i][j] - pre_tar[i][j]), diff);
}
}
std::clog << "Max difference = " << diff << "\n";
*/
return 0;
}
catch (std::exception &e)
{
GCTL_ShowWhatError(e.what(), GCTL_ERROR_ERROR, 0, 0, 0);
}

66
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/********************************************************
* ██████╗ ██████╗████████╗██╗
* ██╔════╝ ██╔════╝╚══██╔══╝██║
* ██║ ███╗██║ ██║ ██║
* ██║ ██║██║ ██║ ██║
* ╚██████╔╝╚██████╗ ██║ ███████╗
* ╚═════╝ ╚═════╝ ╚═╝ ╚══════╝
* Geophysical Computational Tools & Library (GCTL)
*
* Copyright (c) 2022 Yi Zhang (yizhang-geo@zju.edu.cn)
*
* GCTL is distributed under a dual licensing scheme. You can redistribute
* it and/or modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation, either version 2
* of the License, or (at your option) any later version. You should have
* received a copy of the GNU Lesser General Public License along with this
* program. If not, see <http://www.gnu.org/licenses/>.
*
* If the terms and conditions of the LGPL v.2. would prevent you from using
* the GCTL, please consider the option to obtain a commercial license for a
* fee. These licenses are offered by the GCTL's original author. As a rule,
* licenses are provided "as-is", unlimited in time for a one time fee. Please
* send corresponding requests to: yizhang-geo@zju.edu.cn. Please do not forget
* to include some description of your company and the realm of its activities.
* Also add information on how to contact you by electronic and paper mail.
******************************************************/
#include "../lib/dnn.h"
using namespace gctl;
int main(int argc, char const *argv[]) try
{
convolution cnl_layer(0, 3, 10, 10, 3, 3, 2, 2, Valid, ReLU);
std::clog << cnl_layer.layer_info() << std::endl;
matrix<double> t(100, 3);
std::clog << "T = \n";
for (size_t c = 0; c < 3; c++)
{
for (size_t i = 0; i < 10; i++)
{
for (size_t j = 0; j < 10; j++)
{
t[i*10+j][c] = i*10 + j + 1;
std::clog << t[i*10+j][c] << " ";
}
std::clog << "\n";
}
}
array<double> weights(28);
for (size_t i = 0; i < 28; i++)
{
weights[i] = 1.0;
}
cnl_layer.forward_propagation(weights, t);
const matrix<double> &d = cnl_layer.forward_propagation_data();
d.show(std::clog);
return 0;
}
catch (std::exception &e)
{
GCTL_ShowWhatError(e.what(), GCTL_ERROR_ERROR, 0, 0, 0);
}

116
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/********************************************************
* ██████╗ ██████╗████████╗██╗
* ██╔════╝ ██╔════╝╚══██╔══╝██║
* ██║ ███╗██║ ██║ ██║
* ██║ ██║██║ ██║ ██║
* ╚██████╔╝╚██████╗ ██║ ███████╗
* ╚═════╝ ╚═════╝ ╚═╝ ╚══════╝
* Geophysical Computational Tools & Library (GCTL)
*
* Copyright (c) 2022 Yi Zhang (yizhang-geo@zju.edu.cn)
*
* GCTL is distributed under a dual licensing scheme. You can redistribute
* it and/or modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation, either version 2
* of the License, or (at your option) any later version. You should have
* received a copy of the GNU Lesser General Public License along with this
* program. If not, see <http://www.gnu.org/licenses/>.
*
* If the terms and conditions of the LGPL v.2. would prevent you from using
* the GCTL, please consider the option to obtain a commercial license for a
* fee. These licenses are offered by the GCTL's original author. As a rule,
* licenses are provided "as-is", unlimited in time for a one time fee. Please
* send corresponding requests to: yizhang-geo@zju.edu.cn. Please do not forget
* to include some description of your company and the realm of its activities.
* Also add information on how to contact you by electronic and paper mail.
******************************************************/
#include "../data/MNIST/mnist_database.h"
#include "../lib/dnn.h"
using namespace gctl;
int main(int argc, char const *argv[]) try
{
mnist_database data("data/MNIST");
matrix<double> train_obs(784, 60000), train_lab(10, 60000, 0.0);
matrix<double> test_obs(784, 10000), test_lab(10, 10000, 0.0), predicts(10, 10000);
const std::vector<std::vector<double> > &dt_obs = data.train_images();
for (size_t i = 0; i < 60000; i++)
{
for (size_t j = 0; j < 784; j++)
{
train_obs[j][i] = dt_obs[i][j]/255.0;
}
}
const std::vector<std::vector<double> > &dt_obs2 = data.test_images();
for (size_t i = 0; i < 10000; i++)
{
for (size_t j = 0; j < 784; j++)
{
test_obs[j][i] = dt_obs2[i][j]/255.0;
}
}
const std::vector<double> &dt_lab = data.train_labels();
for (size_t i = 0; i < 60000; i++)
{
train_lab[dt_lab[i]][i] = 1.0;
}
const std::vector<double> &dt_lab2 = data.test_labels();
for (size_t i = 0; i < 10000; i++)
{
test_lab[dt_lab2[i]][i] = 1.0;
}
dnn my_nn("Ex-MNIST");
my_nn.add_hind_layer(784, 800, FullyConnected, PReLU);
my_nn.add_hind_layer(800, 10, FullyConnected, SoftMax);
my_nn.add_output_layer(MultiClassEntropy);
my_nn.add_train_set(train_obs, train_lab, 1000);
my_nn.init_network(0.0, 0.1);
//sgd_para my_para = my_nn.default_sgd_para();
//my_para.alpha = 0.01;
//my_para.epsilon = 1e-5;
//my_nn.train_network(my_para, gctl::ADAM);
lgd_para my_para = my_nn.default_lgd_para();
my_para.flight_times = 1000;
my_para.alpha = 0.08;
my_para.beta = 1.8;
my_nn.train_network(my_para);
my_nn.predict(test_obs, predicts);
my_nn.save_network("data/saved_networks/mnist_m1");
int wrong_predicts = 0;
int test_id, pre_id;
double test_scr, pre_scr;
for (size_t j = 0; j < 10000; j++)
{
test_id = pre_id = 0;
test_scr = pre_scr = 0;
for (size_t i = 0; i < 10; i++)
{
if (test_lab[i][j] > test_scr) {test_scr = test_lab[i][j]; test_id = i;}
if (predicts[i][j] > pre_scr) {pre_scr = predicts[i][j]; pre_id = i;}
}
if (test_id != pre_id)
{
wrong_predicts++;
}
}
std::cout << "Correct Rate = " << (10000 - wrong_predicts)/100.0 << "%\n";
return 0;
}
catch (std::exception &e)
{
GCTL_ShowWhatError(e.what(), GCTL_ERROR_ERROR, 0, 0, 0);
}

116
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/********************************************************
* ██████╗ ██████╗████████╗██╗
* ██╔════╝ ██╔════╝╚══██╔══╝██║
* ██║ ███╗██║ ██║ ██║
* ██║ ██║██║ ██║ ██║
* ╚██████╔╝╚██████╗ ██║ ███████╗
* ╚═════╝ ╚═════╝ ╚═╝ ╚══════╝
* Geophysical Computational Tools & Library (GCTL)
*
* Copyright (c) 2022 Yi Zhang (yizhang-geo@zju.edu.cn)
*
* GCTL is distributed under a dual licensing scheme. You can redistribute
* it and/or modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation, either version 2
* of the License, or (at your option) any later version. You should have
* received a copy of the GNU Lesser General Public License along with this
* program. If not, see <http://www.gnu.org/licenses/>.
*
* If the terms and conditions of the LGPL v.2. would prevent you from using
* the GCTL, please consider the option to obtain a commercial license for a
* fee. These licenses are offered by the GCTL's original author. As a rule,
* licenses are provided "as-is", unlimited in time for a one time fee. Please
* send corresponding requests to: yizhang-geo@zju.edu.cn. Please do not forget
* to include some description of your company and the realm of its activities.
* Also add information on how to contact you by electronic and paper mail.
******************************************************/
#include "../data/MNIST/mnist_database.h"
#include "../lib/dnn.h"
using namespace gctl;
int main(int argc, char const *argv[]) try
{
mnist_database data("data/MNIST");
matrix<double> train_obs(784, 60000), train_lab(10, 60000, 0.0);
matrix<double> test_obs(784, 10000), test_lab(10, 10000, 0.0), predicts(10, 10000);
const std::vector<std::vector<double> > &dt_obs = data.train_images();
for (size_t i = 0; i < 60000; i++)
{
for (size_t j = 0; j < 784; j++)
{
train_obs[j][i] = dt_obs[i][j]/255.0;
}
}
const std::vector<std::vector<double> > &dt_obs2 = data.test_images();
for (size_t i = 0; i < 10000; i++)
{
for (size_t j = 0; j < 784; j++)
{
test_obs[j][i] = dt_obs2[i][j]/255.0;
}
}
const std::vector<double> &dt_lab = data.train_labels();
for (size_t i = 0; i < 60000; i++)
{
train_lab[dt_lab[i]][i] = 1.0;
}
const std::vector<double> &dt_lab2 = data.test_labels();
for (size_t i = 0; i < 10000; i++)
{
test_lab[dt_lab2[i]][i] = 1.0;
}
dnn my_nn("Ex-MNIST");
my_nn.add_hind_layer(1, 28, 28, 4, 4, 2, 2, Convolution, Same, PReLU);
my_nn.add_hind_layer(169, 256, FullyConnected, PReLU);
my_nn.add_hind_layer(256, 10, FullyConnected, SoftMax);
my_nn.add_output_layer(MultiClassEntropy);
my_nn.add_train_set(train_obs, train_lab, 5000);
my_nn.init_network(0.0, 0.1);
sgd_para my_para = my_nn.default_sgd_para();
my_para.alpha = 0.01;
my_para.epsilon = 1e-5;
my_nn.train_network(my_para, gctl::ADAM);
//lgd_para my_para = my_nn.default_lgd_para();
//my_para.flight_times = 2000;
//my_para.alpha = 0.1;
//my_nn.train_network(my_para);
my_nn.predict(test_obs, predicts);
my_nn.save_network("data/saved_networks/mnist_m2");
int wrong_predicts = 0;
int test_id, pre_id;
double test_scr, pre_scr;
for (size_t j = 0; j < 10000; j++)
{
test_id = pre_id = 0;
test_scr = pre_scr = 0;
for (size_t i = 0; i < 10; i++)
{
if (test_lab[i][j] > test_scr) {test_scr = test_lab[i][j]; test_id = i;}
if (predicts[i][j] > pre_scr) {pre_scr = predicts[i][j]; pre_id = i;}
}
if (test_id != pre_id)
{
wrong_predicts++;
}
}
std::cout << "Correct Rate = " << (10000 - wrong_predicts)/100.0 << "%\n";
return 0;
}
catch (std::exception &e)
{
GCTL_ShowWhatError(e.what(), GCTL_ERROR_ERROR, 0, 0, 0);
}

87
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/********************************************************
* ██████╗ ██████╗████████╗██╗
* ██╔════╝ ██╔════╝╚══██╔══╝██║
* ██║ ███╗██║ ██║ ██║
* ██║ ██║██║ ██║ ██║
* ╚██████╔╝╚██████╗ ██║ ███████╗
* ╚═════╝ ╚═════╝ ╚═╝ ╚══════╝
* Geophysical Computational Tools & Library (GCTL)
*
* Copyright (c) 2022 Yi Zhang (yizhang-geo@zju.edu.cn)
*
* GCTL is distributed under a dual licensing scheme. You can redistribute
* it and/or modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation, either version 2
* of the License, or (at your option) any later version. You should have
* received a copy of the GNU Lesser General Public License along with this
* program. If not, see <http://www.gnu.org/licenses/>.
*
* If the terms and conditions of the LGPL v.2. would prevent you from using
* the GCTL, please consider the option to obtain a commercial license for a
* fee. These licenses are offered by the GCTL's original author. As a rule,
* licenses are provided "as-is", unlimited in time for a one time fee. Please
* send corresponding requests to: yizhang-geo@zju.edu.cn. Please do not forget
* to include some description of your company and the realm of its activities.
* Also add information on how to contact you by electronic and paper mail.
******************************************************/
#include "../data/MNIST/mnist_database.h"
#include "../lib/dnn.h"
using namespace gctl;
int main(int argc, char const *argv[]) try
{
mnist_database data("data/MNIST");
dnn my_nn("Ex-MNIST");
my_nn.load_network("data/saved_networks/mnist_m1.gctl.dnn");
my_nn.show_network();
my_nn.save_layer2text(0, "data/saved_networks/mnist_m1_layer1");
my_nn.save_layer2text(1, "data/saved_networks/mnist_m1_layer2");
/*
matrix<double> test_obs(784, 10000), test_lab(10, 10000, 0.0), predicts(10, 10000);
const std::vector<std::vector<double> > &dt_obs2 = data.test_images();
for (size_t i = 0; i < 10000; i++)
{
for (size_t j = 0; j < 784; j++)
{
test_obs[j][i] = dt_obs2[i][j]/255.0;
}
}
const std::vector<double> &dt_lab2 = data.test_labels();
for (size_t i = 0; i < 10000; i++)
{
test_lab[dt_lab2[i]][i] = 1.0;
}
my_nn.predict(test_obs, predicts);
int wrong_predicts = 0;
int test_id, pre_id;
double test_scr, pre_scr;
for (size_t j = 0; j < 10000; j++)
{
test_id = pre_id = 0;
test_scr = pre_scr = 0;
for (size_t i = 0; i < 10; i++)
{
if (test_lab[i][j] > test_scr) {test_scr = test_lab[i][j]; test_id = i;}
if (predicts[i][j] > pre_scr) {pre_scr = predicts[i][j]; pre_id = i;}
}
if (test_id != pre_id)
{
wrong_predicts++;
}
}
std::cout << "Correct Rate = " << (10000 - wrong_predicts)/100.0 << "%\n";
*/
return 0;
}
catch (std::exception &e)
{
GCTL_ShowWhatError(e.what(), GCTL_ERROR_ERROR, 0, 0, 0);
}

97
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/********************************************************
* ██████╗ ██████╗████████╗██╗
* ██╔════╝ ██╔════╝╚══██╔══╝██║
* ██║ ███╗██║ ██║ ██║
* ██║ ██║██║ ██║ ██║
* ╚██████╔╝╚██████╗ ██║ ███████╗
* ╚═════╝ ╚═════╝ ╚═╝ ╚══════╝
* Geophysical Computational Tools & Library (GCTL)
*
* Copyright (c) 2022 Yi Zhang (yizhang-geo@zju.edu.cn)
*
* GCTL is distributed under a dual licensing scheme. You can redistribute
* it and/or modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation, either version 2
* of the License, or (at your option) any later version. You should have
* received a copy of the GNU Lesser General Public License along with this
* program. If not, see <http://www.gnu.org/licenses/>.
*
* If the terms and conditions of the LGPL v.2. would prevent you from using
* the GCTL, please consider the option to obtain a commercial license for a
* fee. These licenses are offered by the GCTL's original author. As a rule,
* licenses are provided "as-is", unlimited in time for a one time fee. Please
* send corresponding requests to: yizhang-geo@zju.edu.cn. Please do not forget
* to include some description of your company and the realm of its activities.
* Also add information on how to contact you by electronic and paper mail.
******************************************************/
#include "../lib/core.h"
#include "../lib/io.h"
using namespace gctl;
double get_x(const point3dc &p)
{
return p.x;
}
int main(int argc, char const *argv[]) try
{
// create a new array and give initial values
array<double> A(10, 0.0, 1.0);
A.memory_usage();
A.log2linear(2);
A.show();
A.linear2log(2);
A.show();
A.for_each([](double &a){a += 1;});
A.show();
A.sequence(1.0, 0.5, 3, 4, 1);
A.show();
// copy A to a new array
array<double> B = A;
B.normalize();
B.show();
array<double> S = A + B;
std::cout << "B + A = ";
S.show();
S.normalize();
S.show();
array<point3dc> P(5);
P.sequence(point3dc(0, 0, 0), point3dc(2, 1, 0.5));
P.show(std::cout, '\n');
//array<double> Px = P.extract<double>([](const point3dc &p)->double{return p.x;});
array<double> Px = P.extract<double>(get_x);
Px.show();
// create a new 2D array
matrix<int> C(5, 5, 1);
C.sequence(0, 1, 10);
std::cout << "C = \n";
C.show();
// save array to a binary file
save_matrix2binary("tmp/array_ex_out", C, "Int");
// import 2D array to a new object
matrix<int> D;
read_binary2matrix("tmp/array_ex_out", D);
std::cout << "D = \n";
D.show();
return 0;
}
catch(std::exception &e)
{
GCTL_ShowWhatError(e.what(), GCTL_ERROR_ERROR, 0, 0, 0);
}

54
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/********************************************************
* ██████╗ ██████╗████████╗██╗
* ██╔════╝ ██╔════╝╚══██╔══╝██║
* ██║ ███╗██║ ██║ ██║
* ██║ ██║██║ ██║ ██║
* ╚██████╔╝╚██████╗ ██║ ███████╗
* ╚═════╝ ╚═════╝ ╚═╝ ╚══════╝
* Geophysical Computational Tools & Library (GCTL)
*
* Copyright (c) 2023 Yi Zhang (yizhang-geo@zju.edu.cn)
*
* GCTL is distributed under a dual licensing scheme. You can redistribute
* it and/or modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation, either version 2
* of the License, or (at your option) any later version. You should have
* received a copy of the GNU Lesser General Public License along with this
* program. If not, see <http://www.gnu.org/licenses/>.
*
* If the terms and conditions of the LGPL v.2. would prevent you from using
* the GCTL, please consider the option to obtain a commercial license for a
* fee. These licenses are offered by the GCTL's original author. As a rule,
* licenses are provided "as-is", unlimited in time for a one time fee. Please
* send corresponding requests to: yizhang-geo@zju.edu.cn. Please do not forget
* to include some description of your company and the realm of its activities.
* Also add information on how to contact you by electronic and paper mail.
******************************************************/
#include "../lib/algorithm.h"
using namespace gctl;
affvar func(const affvar &x1, const affvar &x2)
{
// y(x1, x2) = x1*x2 + 2*cos(x1) - 3*sin(x2)
// dy/dx1 = x2 - 2*sin(x1)
// dy/dx2 = x1 - 3*cos(x2)
affvar y = x1*x2 + 2.0*cos(x1) - 3.0*sin(x2);
return y;
}
int main(int argc, char *argv[])
{
affvar x1 = 2.0;
affvar x2 = 3.0;
affvar y;
y.var({&x1, &x2}, x1);
y = func(x1, x2);
std::cout << y.val() << " " << y.der() << "\n";
y.var({&x1, &x2}, x2);
y = func(x1, x2);
std::cout << y.val() << " " << y.der() << "\n";
return 0;
}

94
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/********************************************************
* ██████╗ ██████╗████████╗██╗
* ██╔════╝ ██╔════╝╚══██╔══╝██║
* ██║ ███╗██║ ██║ ██║
* ██║ ██║██║ ██║ ██║
* ╚██████╔╝╚██████╗ ██║ ███████╗
* ╚═════╝ ╚═════╝ ╚═╝ ╚══════╝
* Geophysical Computational Tools & Library (GCTL)
*
* Copyright (c) 2023 Yi Zhang (yizhang-geo@zju.edu.cn)
*
* GCTL is distributed under a dual licensing scheme. You can redistribute
* it and/or modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation, either version 2
* of the License, or (at your option) any later version. You should have
* received a copy of the GNU Lesser General Public License along with this
* program. If not, see <http://www.gnu.org/licenses/>.
*
* If the terms and conditions of the LGPL v.2. would prevent you from using
* the GCTL, please consider the option to obtain a commercial license for a
* fee. These licenses are offered by the GCTL's original author. As a rule,
* licenses are provided "as-is", unlimited in time for a one time fee. Please
* send corresponding requests to: yizhang-geo@zju.edu.cn. Please do not forget
* to include some description of your company and the realm of its activities.
* Also add information on how to contact you by electronic and paper mail.
******************************************************/
/* Copyright 2013 Perttu Luukko
* This file is part of libeemd.
* libeemd is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
* libeemd is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
* You should have received a copy of the GNU General Public License
* along with libeemd. If not, see <http://www.gnu.org/licenses/>.
*/
#include "../lib/core.h"
#include "../lib/io.h"
#include "../lib/algorithm.h"
using namespace gctl;
const size_t ensemble_size = 500;
const unsigned int S_number = 4;
const unsigned int num_siftings = 50;
const double noise_strength = 0.02;
const unsigned long int rng_seed = 0;
const std::string outfile = "ceemdan_example.out";
const size_t N = 512;
int main(int argc, char const *argv[]) try
{
libeemd_error_code err;
// As an example decompose a Dirac signal as in the original CEEMDAN paper
array<double> inp(N, 0.0);
inp[N/2] = 1.0;
// Allocate memory for output data
size_t M = emd_num_imfs(N); // This function is provided by the libeemd
matrix<double> outp;
// Run CEEMDAN
// This is just a warpper of the function ceemdan() from libeemd
// IMFs are stored in rows of the output matrix in the shape of M*N
ceemdan1d(inp, outp, M, ensemble_size, noise_strength, S_number, num_siftings, rng_seed);
std::ofstream ofile;
open_outfile(ofile, outfile);
for (size_t j=0; j<N; j++)
{
ofile << inp[j];
for (size_t i=0; i<M; i++)
{
ofile << " " << outp[i][j];
}
ofile << "\n";
}
ofile.close();
}
catch(std::exception &e)
{
GCTL_ShowWhatError(e.what(), GCTL_ERROR_ERROR, 0, 0, 0);
}

47
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@ -0,0 +1,47 @@
/********************************************************
* ██████╗ ██████╗████████╗██╗
* ██╔════╝ ██╔════╝╚══██╔══╝██║
* ██║ ███╗██║ ██║ ██║
* ██║ ██║██║ ██║ ██║
* ╚██████╔╝╚██████╗ ██║ ███████╗
* ╚═════╝ ╚═════╝ ╚═╝ ╚══════╝
* Geophysical Computational Tools & Library (GCTL)
*
* Copyright (c) 2022 Yi Zhang (yizhang-geo@zju.edu.cn)
*
* GCTL is distributed under a dual licensing scheme. You can redistribute
* it and/or modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation, either version 2
* of the License, or (at your option) any later version. You should have
* received a copy of the GNU Lesser General Public License along with this
* program. If not, see <http://www.gnu.org/licenses/>.
*
* If the terms and conditions of the LGPL v.2. would prevent you from using
* the GCTL, please consider the option to obtain a commercial license for a
* fee. These licenses are offered by the GCTL's original author. As a rule,
* licenses are provided "as-is", unlimited in time for a one time fee. Please
* send corresponding requests to: yizhang-geo@zju.edu.cn. Please do not forget
* to include some description of your company and the realm of its activities.
* Also add information on how to contact you by electronic and paper mail.
******************************************************/
#include "../lib/graphic/cliplot.h"
int main(int argc, char *argv[])
{
double xmin = -3;
double xmax = 3;
double ymin = -1;
double ymax = 1;
gctl::cliplot c(81, 16, xmin, xmax, ymin, ymax);
//c.set_new_screen(true);
c.set_axis(5, 5);
c.set_digs(4);
c.set_wname("Time (s)");
c.set_hname("Value");
c.plot_func([](double x)->double{return sin(x);}, '.', GCTL_BOLDRED);
c.display();
return 0;
}

104
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/********************************************************
* ██████╗ ██████╗████████╗██╗
* ██╔════╝ ██╔════╝╚══██╔══╝██║
* ██║ ███╗██║ ██║ ██║
* ██║ ██║██║ ██║ ██║
* ╚██████╔╝╚██████╗ ██║ ███████╗
* ╚═════╝ ╚═════╝ ╚═╝ ╚══════╝
* Geophysical Computational Tools & Library (GCTL)
*
* Copyright (c) 2023 Yi Zhang (yizhang-geo@zju.edu.cn)
*
* GCTL is distributed under a dual licensing scheme. You can redistribute
* it and/or modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation, either version 2
* of the License, or (at your option) any later version. You should have
* received a copy of the GNU Lesser General Public License along with this
* program. If not, see <http://www.gnu.org/licenses/>.
*
* If the terms and conditions of the LGPL v.2. would prevent you from using
* the GCTL, please consider the option to obtain a commercial license for a
* fee. These licenses are offered by the GCTL's original author. As a rule,
* licenses are provided "as-is", unlimited in time for a one time fee. Please
* send corresponding requests to: yizhang-geo@zju.edu.cn. Please do not forget
* to include some description of your company and the realm of its activities.
* Also add information on how to contact you by electronic and paper mail.
******************************************************/
#include "../lib/io.h"
using namespace gctl;
int main(int argc, char const *argv[]) try
{
dsv_io tc;
tc.delimeter('|');
tc.head_number(1);
tc.load_text("tmp/world_data", ".txt", ColHead|RowHead);
tc.info(AttInfo|HeadInfo|TagInfo);
tc.filter("America", "Continent_s", ColHead);
//tc.filter("America", "BLZ", RowHead);
//tc.save_text("out");
if (tc.has_column("Continent_s")) std::cout << "Find Column\n";
dsv_io tc2 = tc.export_table();
//tc2.head_records(tc.head_records());
tc2.delimeter('|');
tc2.save_text("out");
/*
geodsv_io tc;
tc.load_text("tmp/topo", ".txt", ColumnHead);
tc.set_column_names({"x (m)", "y (m)", "elev (m)"});
tc.set_column_type(Float, "x (m)");
tc.set_column_type(Float, "y (m)");
tc.set_column_type(Float, "elev (m)");
array<point3dc> topo;
tc.get_column_point3dc(topo, 1, 2, 3);
std::clog << std::setprecision(11) << topo.front().z << "\n";
std::clog << topo.back().x << "," << topo.back().y << "," << topo.back().z << "\n";
display_vector(tc.get_tags(), std::clog, '\n');
display_vector(tc.get_annotoations(), std::clog, '\n');
display_vector(tc.get_head_records(), std::clog, '\n');
//tc.column_output("C3", Disable);
array<double> elev;
tc.get_column(elev, "elev (m)");
elev.for_each([](double &d, size_t i){d += 100.0;});
tc.add_column(2, "elev_plus");
tc.fill_column(elev, "elev_plus");
tc.add_column(-1, "dist");
tc.cal_column("dist := sqrt(C1*C1 + C3*C3)", {"dist", "C1", "C3"});
tc.add_row(3);
tc.fill_row(array<double>{5.5, 4.4, 3.3, 2.2, 1.1}, 3);
geodsv_io out_table;
tc.filt_column("dist > 1000", {"dist"}, {"x (m)", "y (m)", "elev (m)"}, out_table);
out_table.save_text("out2");
_1s_vector s = tc.get_tags();
s.push_back("Elev = 1000");
tc.set_tags(s);
tc.save_csv("out");
double c = 4.25242153654;
tc.cell(c, 2, 1, 12);
std::clog << std::setprecision(12) << tc.cell<double>(2, 1) << "\n";
tc.info();
*/
return 0;
}
catch(std::exception &e)
{
GCTL_ShowWhatError(e.what(), GCTL_ERROR_ERROR, 0, 0, 0);
}

100
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/********************************************************
* ██████╗ ██████╗████████╗██╗
* ██╔════╝ ██╔════╝╚══██╔══╝██║
* ██║ ███╗██║ ██║ ██║
* ██║ ██║██║ ██║ ██║
* ╚██████╔╝╚██████╗ ██║ ███████╗
* ╚═════╝ ╚═════╝ ╚═╝ ╚══════╝
* Geophysical Computational Tools & Library (GCTL)
*
* Copyright (c) 2023 Yi Zhang (yizhang-geo@zju.edu.cn)
*
* GCTL is distributed under a dual licensing scheme. You can redistribute
* it and/or modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation, either version 2
* of the License, or (at your option) any later version. You should have
* received a copy of the GNU Lesser General Public License along with this
* program. If not, see <http://www.gnu.org/licenses/>.
*
* If the terms and conditions of the LGPL v.2. would prevent you from using
* the GCTL, please consider the option to obtain a commercial license for a
* fee. These licenses are offered by the GCTL's original author. As a rule,
* licenses are provided "as-is", unlimited in time for a one time fee. Please
* send corresponding requests to: yizhang-geo@zju.edu.cn. Please do not forget
* to include some description of your company and the realm of its activities.
* Also add information on how to contact you by electronic and paper mail.
******************************************************/
/* Copyright 2013 Perttu Luukko
* This file is part of libeemd.
* libeemd is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
* libeemd is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
* You should have received a copy of the GNU General Public License
* along with libeemd. If not, see <http://www.gnu.org/licenses/>.
*/
#include "../lib/core.h"
#include "../lib/io.h"
#include "../lib/algorithms.h"
using namespace gctl;
const size_t ensemble_size = 250;
const unsigned int S_number = 4;
const unsigned int num_siftings = 50;
const double noise_strength = 0.2;
const unsigned long int rng_seed = 0;
std::string outfile = "eemd_example.out";
// An example signal to decompose
const size_t N = 1024;
static inline double input_signal(double x) {
const double omega = 2*GCTL_Pi/(N-1);
return sin(17*omega*x)+0.5*(1.0-exp(-0.002*x))*sin(51*omega*x+1);
}
int main(int argc, char const *argv[]) try
{
// Define input data
array<double> inp(N);
for (size_t i=0; i<N; i++)
{
inp[i] = input_signal((double)i);
}
// Run eemd
matrix<double> outp;
// This is just a warpper of the function eemd() from libeemd
// IMFs are stored in rows of the output matrix in the shape of M*N
eemd1d(inp, outp, 0, ensemble_size, noise_strength, S_number, num_siftings, rng_seed);
std::ofstream ofile;
open_outfile(ofile, outfile);
size_t M = outp.row_size();
for (size_t j=0; j<N; j++)
{
ofile << inp[j];
for (size_t i=0; i<M; i++)
{
ofile << " " << outp[i][j];
}
ofile << "\n";
}
ofile.close();
return 0;
}
catch(std::exception &e)
{
GCTL_ShowWhatError(e.what(), GCTL_ERROR_ERROR, 0, 0, 0);
}

145
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/********************************************************
* ██████╗ ██████╗████████╗██╗
* ██╔════╝ ██╔════╝╚══██╔══╝██║
* ██║ ███╗██║ ██║ ██║
* ██║ ██║██║ ██║ ██║
* ╚██████╔╝╚██████╗ ██║ ███████╗
* ╚═════╝ ╚═════╝ ╚═╝ ╚══════╝
* Geophysical Computational Tools & Library (GCTL)
*
* Copyright (c) 2023 Yi Zhang (yizhang-geo@zju.edu.cn)
*
* GCTL is distributed under a dual licensing scheme. You can redistribute
* it and/or modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation, either version 2
* of the License, or (at your option) any later version. You should have
* received a copy of the GNU Lesser General Public License along with this
* program. If not, see <http://www.gnu.org/licenses/>.
*
* If the terms and conditions of the LGPL v.2. would prevent you from using
* the GCTL, please consider the option to obtain a commercial license for a
* fee. These licenses are offered by the GCTL's original author. As a rule,
* licenses are provided "as-is", unlimited in time for a one time fee. Please
* send corresponding requests to: yizhang-geo@zju.edu.cn. Please do not forget
* to include some description of your company and the realm of its activities.
* Also add information on how to contact you by electronic and paper mail.
******************************************************/
#include "../lib/core.h"
#include "../lib/io.h"
#include "../lib/algorithm.h"
using namespace gctl;
double module(std::complex<double> a)
{
return sqrt(a.real()*a.real() + a.imag()*a.imag());
}
double sin_wave(double t, double f, double phi = 0, double A = 1.0)
{
return A*sin(2*GCTL_Pi*f*t + phi);
}
void average_radian_spec(const array<double> &in_freq, const array<double> &in_power,
const array<double> &out_freq, array<double> &out_power, array<double> &out_std)
{
int in_num = in_freq.size();
int out_num = out_freq.size();
out_power.resize(out_num, 0);
out_std.resize(out_num, 0);
std::vector<double> bin;
_1d_array bin_arr;
for (size_t i = 0; i < out_num; i++)
{
bin.clear();
for (size_t j = 0; j < in_num; j++)
{
if (in_freq[j] > out_freq[i] - 0.5 && in_freq[j] <= out_freq[i] + 0.5)
{
bin.push_back(in_power[j]);
}
}
if (!bin.empty())
{
bin_arr.import_vector(bin);
out_power[i] = bin_arr.mean();
out_std[i] = bin_arr.std();
}
}
return;
}
int main(int argc, char const *argv[]) try
{
double T = 2.0; // 采样时间
double dT = 0.01; // 采样间隔
double freq = 1.0/dT; // 采样频率
int M = round(T/dT) + 1, N = round(T/dT) + 1;
_2d_matrix sig(M, N);
_1d_array X(N), Y(M);
_1d_array U(N), V(M);
X.sequence(-1.0, dT);
Y.sequence(-1.0, dT);
U.sequence(-1.0*freq, 2.0*freq/(N - 1));
V.sequence(-1.0*freq, 2.0*freq/(M - 1));
double t;
double f1 = 40.0;
double f2 = 20.0;
double f3 = 10.0;
for (size_t i = 0; i < M; i++)
{
for (size_t j = 0; j < N; j++)
{
t = sqrt(X[j]*X[j] + Y[i]*Y[i]);
sig[i][j] = pow(-1, i+j)*(sin_wave(t, f1) + sin_wave(t, f2) + sin_wave(t, f3));
}
}
_1cd_array spectrum;
dft2d(sig, spectrum);
_1d_array spec_real(M*N), spec_imag(M*N), spec_power(M*N);
for (size_t i = 0; i < M*N; i++)
{
spec_real[i] = spectrum[i].real();
spec_imag[i] = spectrum[i].imag();
spec_power[i] = module(spectrum[i]);
}
save_netcdf_grid("fft2d_sig", sig, U, V, "u", "v");
append_netcdf_grid("fft2d_sig", spec_real, "u", "v", "real");
append_netcdf_grid("fft2d_sig", spec_imag, "u", "v", "imag");
append_netcdf_grid("fft2d_sig", spec_power, "u", "v", "power");
_1d_array pro_freq(M*N), pro_spec(M*N);
for (size_t i = 0; i < M; i++)
{
for (size_t j = 0; j < N; j++)
{
pro_freq[j + i*N] = sqrt(U[j]*U[j] + V[i]*V[i]);
pro_spec[j + i*N] = spec_power[j + i*N];
}
}
_1d_array out_freq, out_power, out_std;
out_freq.resize(150, 1.0, 1.0);
average_radian_spec(pro_freq, pro_spec, out_freq, out_power, out_std);
std::ofstream ofile;
open_outfile(ofile, "fft2d_radian_spec", ".txt");
for (size_t i = 0; i < out_freq.size(); i++)
{
ofile << out_freq[i] << " " << out_power[i] << " " << out_std[i] << "\n";
}
return 0;
}
catch(std::exception &e)
{
GCTL_ShowWhatError(e.what(), GCTL_ERROR_ERROR, 0, 0, 0);
}

87
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/********************************************************
* ██████╗ ██████╗████████╗██╗
* ██╔════╝ ██╔════╝╚══██╔══╝██║
* ██║ ███╗██║ ██║ ██║
* ██║ ██║██║ ██║ ██║
* ╚██████╔╝╚██████╗ ██║ ███████╗
* ╚═════╝ ╚═════╝ ╚═╝ ╚══════╝
* Geophysical Computational Tools & Library (GCTL)
*
* Copyright (c) 2023 Yi Zhang (yizhang-geo@zju.edu.cn)
*
* GCTL is distributed under a dual licensing scheme. You can redistribute
* it and/or modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation, either version 2
* of the License, or (at your option) any later version. You should have
* received a copy of the GNU Lesser General Public License along with this
* program. If not, see <http://www.gnu.org/licenses/>.
*
* If the terms and conditions of the LGPL v.2. would prevent you from using
* the GCTL, please consider the option to obtain a commercial license for a
* fee. These licenses are offered by the GCTL's original author. As a rule,
* licenses are provided "as-is", unlimited in time for a one time fee. Please
* send corresponding requests to: yizhang-geo@zju.edu.cn. Please do not forget
* to include some description of your company and the realm of its activities.
* Also add information on how to contact you by electronic and paper mail.
******************************************************/
#include "../lib/core.h"
#include "../lib/io.h"
#include "../lib/algorithm.h"
using namespace gctl;
double module(std::complex<double> a)
{
return sqrt(a.real()*a.real() + a.imag()*a.imag());
}
int main(int argc, char const *argv[]) try
{
int fs = 100;
double T = 5;
int n = round(fs*T);
double t;
gctl::array<double> in(n), out;
gctl::array<double> freq_index;
gctl::_1cd_array spectrum;
for (size_t i = 0; i < n; i++)
{
t = 1.0*T*i/n;
in[i] = 2.0*sin(2.0*GCTL_Pi*t*10) + 1.0*sin(2.0*GCTL_Pi*t*5) + 3.0*sin(2.0*GCTL_Pi*t*2);
}
// Run the r2c transform
gctl::dft_r2c_1d(in, spectrum, 1.0*fs, &freq_index);
std::ofstream ofile;
open_outfile(ofile, "fft_example_spec.out");
for (size_t i = 0; i < spectrum.size(); i++)
{
ofile << freq_index[i] << ' ' << module(spectrum[i]) << " ";
if (9.5 < freq_index[i] && freq_index[i] < 10.5) {spectrum[i].real(0.0); spectrum[i].imag(0.0);}
//if (1.5 < freq_index[i] && freq_index[i] < 2.5) {spectrum[i].real(0.0); = spectrum[i].imag(0.0);}
if (4.5 < freq_index[i] && freq_index[i] < 5.5) {spectrum[i].real(0.0); spectrum[i].imag(0.0);}
ofile << module(spectrum[i]) << "\n";
}
ofile.close();
// Run the c2r transform
gctl::dft_c2r_1d(spectrum, out);
open_outfile(ofile, "fft_example_sig.out");
for (size_t i = 0; i < n; i++)
{
t = 1.0*T*i/n;
ofile << t << " " << in[i] << " " << out[i] << "\n";
}
ofile.close();
}
catch(std::exception &e)
{
GCTL_ShowWhatError(e.what(), GCTL_ERROR_ERROR, 0, 0, 0);
}

81
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/********************************************************
* ██████╗ ██████╗████████╗██╗
* ██╔════╝ ██╔════╝╚══██╔══╝██║
* ██║ ███╗██║ ██║ ██║
* ██║ ██║██║ ██║ ██║
* ╚██████╔╝╚██████╗ ██║ ███████╗
* ╚═════╝ ╚═════╝ ╚═╝ ╚══════╝
* Geophysical Computational Tools & Library (GCTL)
*
* Copyright (c) 2023 Yi Zhang (yizhang-geo@zju.edu.cn)
*
* GCTL is distributed under a dual licensing scheme. You can redistribute
* it and/or modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation, either version 2
* of the License, or (at your option) any later version. You should have
* received a copy of the GNU Lesser General Public License along with this
* program. If not, see <http://www.gnu.org/licenses/>.
*
* If the terms and conditions of the LGPL v.2. would prevent you from using
* the GCTL, please consider the option to obtain a commercial license for a
* fee. These licenses are offered by the GCTL's original author. As a rule,
* licenses are provided "as-is", unlimited in time for a one time fee. Please
* send corresponding requests to: yizhang-geo@zju.edu.cn. Please do not forget
* to include some description of your company and the realm of its activities.
* Also add information on how to contact you by electronic and paper mail.
******************************************************/
#include "../lib/core.h"
#include "../lib/io.h"
#include "../lib/algorithm.h"
using namespace gctl;
int main(int argc, char const *argv[]) try
{
int fs = 200;
double f1 = 4.0;
double f2 = 10.0;
// Create filters
fft_filter filter_lp(LowPass, Butterworth, 5, (double) fs, f1);
fft_filter filter_hp(HighPass, Butterworth, 5, (double) fs, f2);
fft_filter filter_bp(BandPass, Butterworth, 5, (double) fs, f1, f2);
fft_filter filter_bs(BandStop, Butterworth, 5, (double) fs, f1, f2);
// Demo
double f1_demo = 1.0; // Hz
double f2_demo = 7.5;
double f3_demo = 15.0;
// Create input signal
int snum = int(10.13*fs);
gctl::array<double> t(snum), signal(snum);
t.sequence(0.0, 10.13/(snum - 1));
for (size_t i = 0; i < t.size(); i++)
{
signal[i] = 2.0*sin(2.0*GCTL_Pi*f1_demo*t[i]) + sin(2.0*GCTL_Pi*f2_demo*t[i]) + 0.5*sin(2.0*GCTL_Pi*f3_demo*t[i]);
}
gctl::array<double> filtered_lp, filtered_hp, filtered_bp, filtered_bs;
// Run the filtersc。
filter_lp.filter(signal, filtered_lp);
filter_hp.filter(signal, filtered_hp);
filter_bp.filter(signal, filtered_bp);
filter_bs.filter(signal, filtered_bs);
std::ofstream ofile;
open_outfile(ofile, "fft_filter_ex.out");
for (size_t i = 0; i < filtered_lp.size(); i++)
{
ofile << t[i] << " " << signal[i] << " " << filtered_lp[i] << " " << filtered_hp[i] << " " << filtered_bp[i] << " " << filtered_bs[i] << "\n";
}
ofile.close();
return 0;
}
catch(std::exception &e)
{
GCTL_ShowWhatError(e.what(), GCTL_ERROR_ERROR, 0, 0, 0);
}

88
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/********************************************************
* ██████╗ ██████╗████████╗██╗
* ██╔════╝ ██╔════╝╚══██╔══╝██║
* ██║ ███╗██║ ██║ ██║
* ██║ ██║██║ ██║ ██║
* ╚██████╔╝╚██████╗ ██║ ███████╗
* ╚═════╝ ╚═════╝ ╚═╝ ╚══════╝
* Geophysical Computational Tools & Library (GCTL)
*
* Copyright (c) 2023 Yi Zhang (yizhang-geo@zju.edu.cn)
*
* GCTL is distributed under a dual licensing scheme. You can redistribute
* it and/or modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation, either version 2
* of the License, or (at your option) any later version. You should have
* received a copy of the GNU Lesser General Public License along with this
* program. If not, see <http://www.gnu.org/licenses/>.
*
* If the terms and conditions of the LGPL v.2. would prevent you from using
* the GCTL, please consider the option to obtain a commercial license for a
* fee. These licenses are offered by the GCTL's original author. As a rule,
* licenses are provided "as-is", unlimited in time for a one time fee. Please
* send corresponding requests to: yizhang-geo@zju.edu.cn. Please do not forget
* to include some description of your company and the realm of its activities.
* Also add information on how to contact you by electronic and paper mail.
******************************************************/
#include "../lib/core.h"
#include "../lib/io.h"
#include "../lib/algorithm.h"
using namespace gctl;
int main(int argc, char const *argv[]) try
{
int fs = 200;
double f1 = 4.0;
double f2 = 10.0;
int m = 600;
// Create filters
fir_filter filter_lp(LowPass, Hamming, m, (double) fs, f1);
fir_filter filter_hp(HighPass, Hamming, m, (double) fs, f2);
fir_filter filter_bp(BandPass, Hamming, m, (double) fs, f1, f2);
fir_filter filter_sb(BandStop, Hamming, m, (double) fs, f1, f2);
// Get coefficient
//array<double> h_lp = filter_lp.get_coefficients();
//array<double> h_hp = filter_hp.get_coefficients();
//array<double> h_bp = filter_bp.get_coefficients();
//array<double> h_sb = filter_sb.get_coefficients();
// Demo
double f1_demo = 1.0; // Hz
double f2_demo = 7.5;
double f3_demo = 15.0;
// Create input signal
int snum = int(10.13*fs);
gctl::array<double> t(snum), signal(snum);
t.sequence(0.0, 10.13/(snum - 1));
for (size_t i = 0; i < t.size(); i++)
{
signal[i] = 2.0*sin(2.0*GCTL_Pi*f1_demo*t[i]) + sin(2.0*GCTL_Pi*f2_demo*t[i]) + 0.5*sin(2.0*GCTL_Pi*f3_demo*t[i]);
}
gctl::array<double> filtered_lp, filtered_hp, filtered_bp, filtered_sb;
// Run the filters
filter_lp.filter(signal, filtered_lp);
filter_hp.filter(signal, filtered_hp);
filter_bp.filter(signal, filtered_bp);
filter_sb.filter(signal, filtered_sb);
std::ofstream ofile;
open_outfile(ofile, "fir_filter_ex.out");
for (size_t i = 0; i < filtered_lp.size(); i++)
{
ofile << t[i] << " " << signal[i] << " " << filtered_lp[i] << " " << filtered_hp[i] << " " << filtered_bp[i] << " " << filtered_sb[i] << "\n";
}
ofile.close();
return 0;
}
catch(std::exception &e)
{
GCTL_ShowWhatError(e.what(), GCTL_ERROR_ERROR, 0, 0, 0);
}

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/********************************************************
* ██████╗ ██████╗████████╗██╗
* ██╔════╝ ██╔════╝╚══██╔══╝██║
* ██║ ███╗██║ ██║ ██║
* ██║ ██║██║ ██║ ██║
* ╚██████╔╝╚██████╗ ██║ ███████╗
* ╚═════╝ ╚═════╝ ╚═╝ ╚══════╝
* Geophysical Computational Tools & Library (GCTL)
*
* Copyright (c) 2022 Yi Zhang (yizhang-geo@zju.edu.cn)
*
* GCTL is distributed under a dual licensing scheme. You can redistribute
* it and/or modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation, either version 2
* of the License, or (at your option) any later version. You should have
* received a copy of the GNU Lesser General Public License along with this
* program. If not, see <http://www.gnu.org/licenses/>.
*
* If the terms and conditions of the LGPL v.2. would prevent you from using
* the GCTL, please consider the option to obtain a commercial license for a
* fee. These licenses are offered by the GCTL's original author. As a rule,
* licenses are provided "as-is", unlimited in time for a one time fee. Please
* send corresponding requests to: yizhang-geo@zju.edu.cn. Please do not forget
* to include some description of your company and the realm of its activities.
* Also add information on how to contact you by electronic and paper mail.
******************************************************/
#include "../lib/utility.h"
#include "../lib/geometry.h"
using namespace gctl;
int main(int argc, char const *argv[]) try
{
getoption gopt;
gopt.add_options({"range", "interval", "weight", "model-file", "model-tag", "out-model", "save-model"},
{true, true, true, true, true, true, false});
gopt.set_group(1, {"out-model", "save-model"});
gopt.read_options("tmp/option_sample");
gopt.check_mandatory();
gopt.check_group(1);
// 显示所有读入的键值与参数值
gopt.show_options();
// 通过键值获取参数值
std::cout << gopt.get_value("model-file") << std::endl;
// 查找不存在的命令 返回警告信息与默认值NULL
std::cout << gopt.get_value("model-tag") << std::endl;
std::cout << "---------------------" << std::endl;
// 通过选项的标签值来获取参数值 需要匹配的字符串只需要包含标签值即可
_1d_vector weight = gopt.get_value_t<_1d_vector>("weight|Weight", '|', '/');
std::cout << weight.size() << std::endl;
std::cout << weight[2] << std::endl;
double xmin, xmax, ymin, ymax;
std::string cover_str;
parse_string_to_value(gopt.get_value("range|Range"), '/', true, xmin, xmax, ymin, ymax, cover_str);
std::cout << xmin << " " << xmax << " " << ymin << " " << ymax << " " << cover_str << std::endl;
std::vector<std::string> tags;
parse_string_to_vector(gopt.get_value("model-tag"), ',', tags);
for (int i = 0; i < tags.size(); i++)
{
std::cout << tags[i] << " ";
}
std::cout << std::endl;
_1s_vector s;
std::cin >> s;
std::cout << s.size() << "\n";
std::cout << s << "\n";
return 0;
}
catch(std::exception &e)
{
GCTL_ShowWhatError(e.what(), GCTL_ERROR_ERROR, 0, 0, 0);
}

65
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/********************************************************
* ██████╗ ██████╗████████╗██╗
* ██╔════╝ ██╔════╝╚══██╔══╝██║
* ██║ ███╗██║ ██║ ██║
* ██║ ██║██║ ██║ ██║
* ╚██████╔╝╚██████╗ ██║ ███████╗
* ╚═════╝ ╚═════╝ ╚═╝ ╚══════╝
* Geophysical Computational Tools & Library (GCTL)
*
* Copyright (c) 2022 Yi Zhang (yizhang-geo@zju.edu.cn)
*
* GCTL is distributed under a dual licensing scheme. You can redistribute
* it and/or modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation, either version 2
* of the License, or (at your option) any later version. You should have
* received a copy of the GNU Lesser General Public License along with this
* program. If not, see <http://www.gnu.org/licenses/>.
*
* If the terms and conditions of the LGPL v.2. would prevent you from using
* the GCTL, please consider the option to obtain a commercial license for a
* fee. These licenses are offered by the GCTL's original author. As a rule,
* licenses are provided "as-is", unlimited in time for a one time fee. Please
* send corresponding requests to: yizhang-geo@zju.edu.cn. Please do not forget
* to include some description of your company and the realm of its activities.
* Also add information on how to contact you by electronic and paper mail.
******************************************************/
#include "../lib/graphic/gmt.h"
int main(int argc, char *argv[])
{
gctl::gmt gt;
/*
gt.begin_session("line_plot", "eps,png");
gt.call_module("basemap", "-R0/10/0/10 -JX5i/5i -Baf");
gt.call_module("plot", "tmp/data.txt -R0/10/0/10 -JX5i/5i -W1p,blue");
gt.end_session(false);
gt.save_session("line_plot");
*/
// example 2
gctl::array<double> data(51*41);
double dist;
for (int i = 0; i < 51; ++i)
{
for (int j = 0; j < 41; ++j)
{
dist = sqrt((j-20)*(j-20) + (i-25)*(i-25));
data[j+i*41] = sin(dist/GCTL_Pi);
}
}
gt.begin_session("image_plot", "eps");
gt.call_module("set", "FONT_ANNOT_PRIMARY=10.5p,Times-Roman,black");
std::string gname = gt.create_grid(data, 41, 51, 0.0, 1.0, 0.0, 1.0);
gt.call_module("grd2cpt", gname + " -R0/40/0/50 -Crainbow -Z -D");
gt.call_module("grdimage", gname + " -R0/40/0/50 -JX1.5i/1.5i -X0.5i -Y0.5i -Bxag+l\"x (m)\" -Byag+l\"y (m)\"");
gt.call_module("psscale", "-Bxa -By+lm -Dx0.1i/-0.2i+w1.3i/0.05i+h");
gt.end_session();
gt.save_session("image_plot");
return 0;
}

97
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/********************************************************
* ██████╗ ██████╗████████╗██╗
* ██╔════╝ ██╔════╝╚══██╔══╝██║
* ██║ ███╗██║ ██║ ██║
* ██║ ██║██║ ██║ ██║
* ╚██████╔╝╚██████╗ ██║ ███████╗
* ╚═════╝ ╚═════╝ ╚═╝ ╚══════╝
* Geophysical Computational Tools & Library (GCTL)
*
* Copyright (c) 2022 Yi Zhang (yizhang-geo@zju.edu.cn)
*
* GCTL is distributed under a dual licensing scheme. You can redistribute
* it and/or modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation, either version 2
* of the License, or (at your option) any later version. You should have
* received a copy of the GNU Lesser General Public License along with this
* program. If not, see <http://www.gnu.org/licenses/>.
*
* If the terms and conditions of the LGPL v.2. would prevent you from using
* the GCTL, please consider the option to obtain a commercial license for a
* fee. These licenses are offered by the GCTL's original author. As a rule,
* licenses are provided "as-is", unlimited in time for a one time fee. Please
* send corresponding requests to: yizhang-geo@zju.edu.cn. Please do not forget
* to include some description of your company and the realm of its activities.
* Also add information on how to contact you by electronic and paper mail.
******************************************************/
#include "../lib/core/macro.h"
#include "../lib/graphic/gnuplot.h"
int main(int argc, char *argv[])
{
gctl::gnuplot gt;
//one line test
//gt.send("set terminal dumb");
//gt.send("plot [-pi/2:pi] cos(x),-(sin(x) > sin(x+1) ? sin(x) : sin(x+1))");
//buffer test (bessel animation)
/*
gt.to_buffer();
gt.send("set terminal gif animate delay 10 size 600,400");
gt.send("set output 'bessel.gif'");
gt.send("set palette rgb 3,9,9");
gt.send("unset key; unset colorbox; unset border; unset tics");
gt.send("set lmargin at screen 0.03");
gt.send("set bmargin at screen 0");
gt.send("set rmargin at screen 0.97");
gt.send("set tmargin at screen 1");
gt.send("set parametric", true);
gt.send("bessel(x,t) = besj0(x) * cos(2*pi*t)");
gt.send("n = 6 # number of zeros");
gt.send("k = (n*pi-1.0/4*pi)");
gt.send("u_0 = k + 1/(8*k) - 31/(384*k)**3 + 3779/(15360*k)**5");
gt.send("set urange [0:u_0]");
gt.send("set vrange[0:1.5*pi]");
gt.send("set cbrange [-1:1]");
gt.send("set zrange[-1:1]");
gt.send("set isosamples 200,100");
gt.send("set pm3d depthorder");
gt.send("set view 40,200");
std::string cmd;
for (float t = 0.0f; t < 2.0f; t += 0.02f)
{
cmd = "splot u*sin(v),u*cos(v),bessel(u," + std::to_string(t) + ") w pm3d ls 1";
gt.send(cmd);
}
gt.send("set output");
gt.save_buffer("bessel");
gt.send_buffer();
*/
//data test
std::vector<double> x(101);
std::vector<double> y1(101);
std::vector<double> y2(101);
for (size_t i = 0; i < 101; i++)
{
x[i] = -1.0*GCTL_Pi + 2.0*GCTL_Pi*i/100.0;
y1[i] = sin(x[i]);
y2[i] = cos(x[i]);
}
std::vector<std::vector<double> > data;
data.push_back(x);
data.push_back(y1);
data.push_back(y2);
gt.to_buffer();
gt.send_data("$Data", data);
gt.send("plot $Data using 1:2 with lines title 'y1', '' using 1:3 with lines title 'y2'");
gt.save_buffer("sin_cos");
gt.send_buffer();
return 0;
}

106
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/********************************************************
* ██████╗ ██████╗████████╗██╗
* ██╔════╝ ██╔════╝╚══██╔══╝██║
* ██║ ███╗██║ ██║ ██║
* ██║ ██║██║ ██║ ██║
* ╚██████╔╝╚██████╗ ██║ ███████╗
* ╚═════╝ ╚═════╝ ╚═╝ ╚══════╝
* Geophysical Computational Tools & Library (GCTL)
*
* Copyright (c) 2023 Yi Zhang (yizhang-geo@zju.edu.cn)
*
* GCTL is distributed under a dual licensing scheme. You can redistribute
* it and/or modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation, either version 2
* of the License, or (at your option) any later version. You should have
* received a copy of the GNU Lesser General Public License along with this
* program. If not, see <http://www.gnu.org/licenses/>.
*
* If the terms and conditions of the LGPL v.2. would prevent you from using
* the GCTL, please consider the option to obtain a commercial license for a
* fee. These licenses are offered by the GCTL's original author. As a rule,
* licenses are provided "as-is", unlimited in time for a one time fee. Please
* send corresponding requests to: yizhang-geo@zju.edu.cn. Please do not forget
* to include some description of your company and the realm of its activities.
* Also add information on how to contact you by electronic and paper mail.
******************************************************/
#include "../lib/core.h"
#include "../lib/algorithm.h"
using namespace gctl;
int main(int argc, char const *argv[]) try
{
/*
array<double> x(201);
x.sequence(-1.0, 0.01);
kde k(0.02, x);
array<double> d;
array<double> a(100000);
a.random_float(0.2, 0.2, RdNormal, 0);
k.get_distribution(a, d);
gaussian_para1d g1(0, 0.2);
array<double> g(201);
for (size_t i = 0; i < x.size(); i++)
{
g[i] = gaussian_dist1d(x[i], g1);
}
array<double> dm(201);
array<double> am(100000, 0.0);
for (size_t i = 0; i < am.size(); i++)
{
k.get_gradient_at(i, a, dm);
for (size_t j = 0; j < x.size(); j++)
{
am[i] += 2.0*(d[j] - g[j])*dm[j];
}
std::cout << a[i] << " " << am[i] << "\n";
}
for (size_t i = 0; i < x.size(); i++)
{
std::cout << x[i] << " " << d[i] - g[i] << "\n";
}
*/
array<double> x(201), y(301);
x.sequence(-1.0, 0.01);
y.sequence(0.0, 0.01);
kde2d k(0.1, 0.1, x, y);
array<double> a(10000), b(10000);
a.random_float(0, 0.2, RdNormal, 0);
b.random_float(1.5, 0.3, RdNormal, 0);
gaussian_para2d g1(0, 1.5, 0.2, 0.3, 0);
array<double> d(201*301);
//k.get_distribution(a, b, d);
a[0] = 0;
b[0] = 1.5;
k.get_gradient_y_at(0, a, b, d);
double t, sum = 0;
for (size_t i = 0; i < y.size(); i++)
{
for (size_t j = 0; j < x.size(); j++)
{
std::cout << x[j] << " " << y[i] << " "
//<< gaussian_dist2d(x[j], y[i], g1) << " "
<< d[201*i + j] << "\n";
}
}
return 0;
}
catch(std::exception &e)
{
GCTL_ShowWhatError(e.what(), GCTL_ERROR_ERROR, 0, 0, 0);
}

53
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/********************************************************
* ██████╗ ██████╗████████╗██╗
* ██╔════╝ ██╔════╝╚══██╔══╝██║
* ██║ ███╗██║ ██║ ██║
* ██║ ██║██║ ██║ ██║
* ╚██████╔╝╚██████╗ ██║ ███████╗
* ╚═════╝ ╚═════╝ ╚═╝ ╚══════╝
* Geophysical Computational Tools & Library (GCTL)
*
* Copyright (c) 2023 Yi Zhang (yizhang-geo@zju.edu.cn)
*
* GCTL is distributed under a dual licensing scheme. You can redistribute
* it and/or modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation, either version 2
* of the License, or (at your option) any later version. You should have
* received a copy of the GNU Lesser General Public License along with this
* program. If not, see <http://www.gnu.org/licenses/>.
*
* If the terms and conditions of the LGPL v.2. would prevent you from using
* the GCTL, please consider the option to obtain a commercial license for a
* fee. These licenses are offered by the GCTL's original author. As a rule,
* licenses are provided "as-is", unlimited in time for a one time fee. Please
* send corresponding requests to: yizhang-geo@zju.edu.cn. Please do not forget
* to include some description of your company and the realm of its activities.
* Also add information on how to contact you by electronic and paper mail.
******************************************************/
#include "../lib/io.h"
#include "../lib/algebra.h"
using namespace gctl;
int main(int argc, char const *argv[]) try
{
std::ofstream ofile;
open_outfile(ofile, "legendre_ex.out");
for (size_t i = 0; i < 101; i++)
{
ofile << -1.0+2.0*i/100;
for (size_t o = 0; o < 10; o++)
{
ofile << " " << legendre_polynomials(o, -1.0+2.0*i/100, false);
ofile << " " << legendre_polynomials(o, -1.0+2.0*i/100, true);
}
ofile << "\n";
}
ofile.close();
return 0;
}
catch(std::exception &e)
{
GCTL_ShowWhatError(e.what(), GCTL_ERROR_ERROR, 0, 0, 0);
}

53
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/********************************************************
* ██████╗ ██████╗████████╗██╗
* ██╔════╝ ██╔════╝╚══██╔══╝██║
* ██║ ███╗██║ ██║ ██║
* ██║ ██║██║ ██║ ██║
* ╚██████╔╝╚██████╗ ██║ ███████╗
* ╚═════╝ ╚═════╝ ╚═╝ ╚══════╝
* Geophysical Computational Tools & Library (GCTL)
*
* Copyright (c) 2023 Yi Zhang (yizhang-geo@zju.edu.cn)
*
* GCTL is distributed under a dual licensing scheme. You can redistribute
* it and/or modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation, either version 2
* of the License, or (at your option) any later version. You should have
* received a copy of the GNU Lesser General Public License along with this
* program. If not, see <http://www.gnu.org/licenses/>.
*
* If the terms and conditions of the LGPL v.2. would prevent you from using
* the GCTL, please consider the option to obtain a commercial license for a
* fee. These licenses are offered by the GCTL's original author. As a rule,
* licenses are provided "as-is", unlimited in time for a one time fee. Please
* send corresponding requests to: yizhang-geo@zju.edu.cn. Please do not forget
* to include some description of your company and the realm of its activities.
* Also add information on how to contact you by electronic and paper mail.
******************************************************/
#include "../lib/geometry.h"
#include "../lib/algorithm.h"
using namespace gctl;
int main(int argc, char const *argv[]) try
{
multinary ml;
ml.init(0.1, 0.3, 0.008, 5);
//array<double> std(9, 0.05);
//array<double> xs = {-2.2, -1.8, -1.5, -1.0, -0.7, -0.2, 0.9, 1.3, 1.9, 2.5};
//ml.init(xs, std);
array<double> x(201);
sequence(x, 0.1, 0.001);
for (size_t i = 0; i < x.size(); i++)
{
std::cout << x[i] << " " << ml.val(x[i]) << " " << ml.der(x[i]) << "\n";
}
}
catch(std::exception &e)
{
GCTL_ShowWhatError(e.what(), GCTL_ERROR_ERROR, 0, 0, 0);
}

44
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@ -0,0 +1,44 @@
/********************************************************
* ██████╗ ██████╗████████╗██╗
* ██╔════╝ ██╔════╝╚══██╔══╝██║
* ██║ ███╗██║ ██║ ██║
* ██║ ██║██║ ██║ ██║
* ╚██████╔╝╚██████╗ ██║ ███████╗
* ╚═════╝ ╚═════╝ ╚═╝ ╚══════╝
* Geophysical Computational Tools & Library (GCTL)
*
* Copyright (c) 2023 Yi Zhang (yizhang-geo@zju.edu.cn)
*
* GCTL is distributed under a dual licensing scheme. You can redistribute
* it and/or modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation, either version 2
* of the License, or (at your option) any later version. You should have
* received a copy of the GNU Lesser General Public License along with this
* program. If not, see <http://www.gnu.org/licenses/>.
*
* If the terms and conditions of the LGPL v.2. would prevent you from using
* the GCTL, please consider the option to obtain a commercial license for a
* fee. These licenses are offered by the GCTL's original author. As a rule,
* licenses are provided "as-is", unlimited in time for a one time fee. Please
* send corresponding requests to: yizhang-geo@zju.edu.cn. Please do not forget
* to include some description of your company and the realm of its activities.
* Also add information on how to contact you by electronic and paper mail.
******************************************************/
#include "../lib/core.h"
#include "../lib/io.h"
using namespace gctl;
int main(int argc, char const *argv[]) try
{
array<vertex3dc> nodes;
array<triangle> tris;
read_ply_binary("tmp_binary", nodes, tris);
save_ply_ascii("tmp", nodes, tris);
return 0;
}
catch(std::exception &e)
{
GCTL_ShowWhatError(e.what(), GCTL_ERROR_ERROR, 0, 0, 0);
}

63
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/********************************************************
* ██████╗ ██████╗████████╗██╗
* ██╔════╝ ██╔════╝╚══██╔══╝██║
* ██║ ███╗██║ ██║ ██║
* ██║ ██║██║ ██║ ██║
* ╚██████╔╝╚██████╗ ██║ ███████╗
* ╚═════╝ ╚═════╝ ╚═╝ ╚══════╝
* Geophysical Computational Tools & Library (GCTL)
*
* Copyright (c) 2023 Yi Zhang (yizhang-geo@zju.edu.cn)
*
* GCTL is distributed under a dual licensing scheme. You can redistribute
* it and/or modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation, either version 2
* of the License, or (at your option) any later version. You should have
* received a copy of the GNU Lesser General Public License along with this
* program. If not, see <http://www.gnu.org/licenses/>.
*
* If the terms and conditions of the LGPL v.2. would prevent you from using
* the GCTL, please consider the option to obtain a commercial license for a
* fee. These licenses are offered by the GCTL's original author. As a rule,
* licenses are provided "as-is", unlimited in time for a one time fee. Please
* send corresponding requests to: yizhang-geo@zju.edu.cn. Please do not forget
* to include some description of your company and the realm of its activities.
* Also add information on how to contact you by electronic and paper mail.
******************************************************/
#include "../lib/core.h"
#include "../lib/utility.h"
using namespace gctl;
class process_ex : public process_monitor
{
public:
process_ex(){}
virtual ~process_ex(){}
void process()
{
for (size_t i = 0; i < 10; i++)
{
std::cout << "do something here...\n";
wait_for_kerboard();
if (end_process()) break;
}
set_end_process();
return;
}
};
int main(int argc, char const *argv[]) try
{
process_ex p;
p.start_monitoring();
return 0;
}
catch(std::exception &e)
{
GCTL_ShowWhatError(e.what(), GCTL_ERROR_ERROR, 0, 0, 0);
}

74
src/core/refellipsoid_ex.cpp Normal file
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@ -0,0 +1,74 @@
/********************************************************
* ██████╗ ██████╗████████╗██╗
* ██╔════╝ ██╔════╝╚══██╔══╝██║
* ██║ ███╗██║ ██║ ██║
* ██║ ██║██║ ██║ ██║
* ╚██████╔╝╚██████╗ ██║ ███████╗
* ╚═════╝ ╚═════╝ ╚═╝ ╚══════╝
* Geophysical Computational Tools & Library (GCTL)
*
* Copyright (c) 2023 Yi Zhang (yizhang-geo@zju.edu.cn)
*
* GCTL is distributed under a dual licensing scheme. You can redistribute
* it and/or modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation, either version 2
* of the License, or (at your option) any later version. You should have
* received a copy of the GNU Lesser General Public License along with this
* program. If not, see <http://www.gnu.org/licenses/>.
*
* If the terms and conditions of the LGPL v.2. would prevent you from using
* the GCTL, please consider the option to obtain a commercial license for a
* fee. These licenses are offered by the GCTL's original author. As a rule,
* licenses are provided "as-is", unlimited in time for a one time fee. Please
* send corresponding requests to: yizhang-geo@zju.edu.cn. Please do not forget
* to include some description of your company and the realm of its activities.
* Also add information on how to contact you by electronic and paper mail.
******************************************************/
#include "../lib/geometry.h"
using namespace gctl;
int main(int argc, char const *argv[]) try
{
refellipsoid ellip;
ellip.set(WGS84);
/*
point3ds ps;
ps.set_io_precision(17);
ps.lon = -110;
ellip.geodetic2spherical(-40, 0, ps.lat, ps.rad);
std::cout << "Geocentric: " << ps << std::endl;
point3dc pc = ps.s2c();
pc.set_io_precision(17);
std::cout << "XYZ: " << pc << std::endl;
ellip.spherical2geodetic(ps, ps.lon, ps.lat, ps.rad);
std::cout << "Geodetic: " << ps << std::endl;
ellip.xyz2geodetic(pc, ps.lon, ps.lat, ps.rad);
std::cout << "Geodetic: " << ps << std::endl;
*/
point3ds ps;
ps.set_io_precision(17);
// 大地坐标 (110,40,0)
ps.lon = 110;
ellip.geodetic2spherical(40.0, 0.0, ps.lat, ps.rad);
// 球心坐标 (110,39.810615323061491,6369344.5441424493)
std::cout << "Geocentric: " << ps << std::endl;
// 转换为大地坐标
point3ds pd;
ellip.xyz2geodetic(ps.s2c(), pd.lon, pd.lat, pd.rad);
std::cout << "Geodetic: " << pd << std::endl;
// 400km高
pd.rad = 400000.0;
ellip.geodetic2spherical(pd.lat, pd.rad, pd.lat, pd.rad);
std::cout << "Geocentric: " << pd << std::endl;
return 0;
}
catch(std::exception &e)
{
GCTL_ShowWhatError(e.what(), GCTL_ERROR_ERROR, 0, 0, 0);
}

0
examples/sparray2d_ex.cpp → src/core/sparray2d_ex.cpp
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114
src/core/sparray_ex.cpp Normal file
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@ -0,0 +1,114 @@
/********************************************************
* ██████╗ ██████╗████████╗██╗
* ██╔════╝ ██╔════╝╚══██╔══╝██║
* ██║ ███╗██║ ██║ ██║
* ██║ ██║██║ ██║ ██║
* ╚██████╔╝╚██████╗ ██║ ███████╗
* ╚═════╝ ╚═════╝ ╚═╝ ╚══════╝
* Geophysical Computational Tools & Library (GCTL)
*
* Copyright (c) 2022 Yi Zhang (yizhang-geo@zju.edu.cn)
*
* GCTL is distributed under a dual licensing scheme. You can redistribute
* it and/or modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation, either version 2
* of the License, or (at your option) any later version. You should have
* received a copy of the GNU Lesser General Public License along with this
* program. If not, see <http://www.gnu.org/licenses/>.
*
* If the terms and conditions of the LGPL v.2. would prevent you from using
* the GCTL, please consider the option to obtain a commercial license for a
* fee. These licenses are offered by the GCTL's original author. As a rule,
* licenses are provided "as-is", unlimited in time for a one time fee. Please
* send corresponding requests to: yizhang-geo@zju.edu.cn. Please do not forget
* to include some description of your company and the realm of its activities.
* Also add information on how to contact you by electronic and paper mail.
******************************************************/
#include "../lib/core.h"
#include "../lib/algorithms.h"
int main(int argc, char const *argv[])
{
srand(time(0));
gctl::sparray<double> M(50, 0.0);
gctl::sparray<double> L;
int tmp_id[13] = {4, 2, 6, 7, 8, 12, 23, 43, 33, 47, 38, 15, 1};
int tmp_size = 13;
for (int i = 0; i < tmp_size; i++)
{
M.set(tmp_id[i], gctl::random(10.0, 20.0));
}
M.show_list();
std::cout << "************" << std::endl;
M.copy_to(L, 2);
L.show_list();
M.set(18, 100);
M.set(38, 100);
M.remove(12);
std::cout << "************" << std::endl;
M.show_list();
gctl::array<double> C(50, -1.0);
M.export_dense(C, 1.0, gctl::AppendVal);
for (int i = 0; i < C.size(); i++)
{
std::cout << C.at(i) << " ";
}
std::cout << std::endl;
gctl::sparray<double> N(C, -1, 1e-10);
N.show_list();
std::cout << "Test 2" << std::endl;
M.clear();
M.malloc(20, 0.0);
M.set(5, 6.5);
M.set(9, 9.1);
M.set(3, 4.3);
M.set(17, 1.4);
M.set(10, 3.5);
M.set(7, 7.4);
M.show_list();
M.remove(17);
M.remove(9);
std::cout << "**********" << std::endl;
M.show_list();
std::cout << "Test 3" << std::endl;
int test_size = 500000;
M.clear();
M.malloc(test_size, 0.0);
clock_t start = clock();
for (int i = 0; i < 300000; i++)
{
M.set(i, gctl::random(10.0, 20.0));
}
for (int i = 300001; i < test_size; i++)
{
M.set(i, gctl::random(10.0, 20.0));
}
M.set(300000, 15.8888);
clock_t end = clock();
std::cout << "sparray set() time: " << 1000.0*(end - start)/(double)CLOCKS_PER_SEC << " ms" << std::endl;
std::cout << "M.at(300000) = " << M.value(300000) << std::endl;
M.show_list(299995, 300005);
return 0;
}

77
src/core/spmat_ex.cpp Normal file
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/********************************************************
* ██████╗ ██████╗████████╗██╗
* ██╔════╝ ██╔════╝╚══██╔══╝██║
* ██║ ███╗██║ ██║ ██║
* ██║ ██║██║ ██║ ██║
* ╚██████╔╝╚██████╗ ██║ ███████╗
* ╚═════╝ ╚═════╝ ╚═╝ ╚══════╝
* Geophysical Computational Tools & Library (GCTL)
*
* Copyright (c) 2023 Yi Zhang (yizhang-geo@zju.edu.cn)
*
* GCTL is distributed under a dual licensing scheme. You can redistribute
* it and/or modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation, either version 2
* of the License, or (at your option) any later version. You should have
* received a copy of the GNU Lesser General Public License along with this
* program. If not, see <http://www.gnu.org/licenses/>.
*
* If the terms and conditions of the LGPL v.2. would prevent you from using
* the GCTL, please consider the option to obtain a commercial license for a
* fee. These licenses are offered by the GCTL's original author. As a rule,
* licenses are provided "as-is", unlimited in time for a one time fee. Please
* send corresponding requests to: yizhang-geo@zju.edu.cn. Please do not forget
* to include some description of your company and the realm of its activities.
* Also add information on how to contact you by electronic and paper mail.
******************************************************/
#include "../lib/core.h"
using namespace gctl;
int main(int argc, char const *argv[]) try
{
spmat<double> mat(5, 5, 0.0);
std::vector<mat_node<double> > triplts;
triplts.push_back(mat_node(0, 1, 0.23));
triplts.push_back(mat_node(1, 2, 0.52));
triplts.push_back(mat_node(2, 3, 0.31));
triplts.push_back(mat_node(2, 3, 0.19));
triplts.push_back(mat_node(3, 2, 0.65));
triplts.push_back(mat_node(3, 4, 0.8));
triplts.push_back(mat_node(4, 3, 1.6));
triplts.push_back(mat_node(4, 3, 0.4));
mat.set_triplts(triplts, ReplaceVal);
mat.init_pattern();
mat.show_matrix();
std::cout << "=====\n";
// 调用clear会重置pattern
mat.clear(3, RowMajor);
for (size_t i = 0; i < triplts.size(); i++)
{
triplts[i].val = 0.1*(i + 1);
}
mat.set_triplts(triplts, ReplaceVal);
mat.show_matrix();
for (size_t i = 0; i < mat.row_size(); i++)
{
std::cout << "module(" << i << ") = " << mat.module(i, ColMajor) << "\n";
}
for (size_t i = 0; i < mat.row_size(); i++)
{
mat.scale(2.0, i);
}
mat.show_matrix();
}
catch(std::exception &e)
{
GCTL_ShowWhatError(e.what(), GCTL_ERROR_ERROR, 0, 0, 0);
}

45
src/core/stl_io_ex.cpp Normal file
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@ -0,0 +1,45 @@
/********************************************************
* ██████╗ ██████╗████████╗██╗
* ██╔════╝ ██╔════╝╚══██╔══╝██║
* ██║ ███╗██║ ██║ ██║
* ██║ ██║██║ ██║ ██║
* ╚██████╔╝╚██████╗ ██║ ███████╗
* ╚═════╝ ╚═════╝ ╚═╝ ╚══════╝
* Geophysical Computational Tools & Library (GCTL)
*
* Copyright (c) 2023 Yi Zhang (yizhang-geo@zju.edu.cn)
*
* GCTL is distributed under a dual licensing scheme. You can redistribute
* it and/or modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation, either version 2
* of the License, or (at your option) any later version. You should have
* received a copy of the GNU Lesser General Public License along with this
* program. If not, see <http://www.gnu.org/licenses/>.
*
* If the terms and conditions of the LGPL v.2. would prevent you from using
* the GCTL, please consider the option to obtain a commercial license for a
* fee. These licenses are offered by the GCTL's original author. As a rule,
* licenses are provided "as-is", unlimited in time for a one time fee. Please
* send corresponding requests to: yizhang-geo@zju.edu.cn. Please do not forget
* to include some description of your company and the realm of its activities.
* Also add information on how to contact you by electronic and paper mail.
******************************************************/
#include "../lib/core.h"
#include "../lib/io.h"
using namespace gctl;
int main(int argc, char const *argv[]) try
{
array<vertex3dc> nodes;
array<triangle> tris;
read_stl_binary("tmp/Stanford_Bunny_Binary", nodes, tris);
save_stl_ascii("tmp", tris, "Stanford_Bunny");
save_stl_binary("tmp_binary", tris, "Stanford_Bunny");
return 0;
}
catch(std::exception &e)
{
GCTL_ShowWhatError(e.what(), GCTL_ERROR_ERROR, 0, 0, 0);
}

55
src/core/windowfunc_ex.cpp Normal file
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@ -0,0 +1,55 @@
/********************************************************
* ██████╗ ██████╗████████╗██╗
* ██╔════╝ ██╔════╝╚══██╔══╝██║
* ██║ ███╗██║ ██║ ██║
* ██║ ██║██║ ██║ ██║
* ╚██████╔╝╚██████╗ ██║ ███████╗
* ╚═════╝ ╚═════╝ ╚═╝ ╚══════╝
* Geophysical Computational Tools & Library (GCTL)
*
* Copyright (c) 2023 Yi Zhang (yizhang-geo@zju.edu.cn)
*
* GCTL is distributed under a dual licensing scheme. You can redistribute
* it and/or modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation, either version 2
* of the License, or (at your option) any later version. You should have
* received a copy of the GNU Lesser General Public License along with this
* program. If not, see <http://www.gnu.org/licenses/>.
*
* If the terms and conditions of the LGPL v.2. would prevent you from using
* the GCTL, please consider the option to obtain a commercial license for a
* fee. These licenses are offered by the GCTL's original author. As a rule,
* licenses are provided "as-is", unlimited in time for a one time fee. Please
* send corresponding requests to: yizhang-geo@zju.edu.cn. Please do not forget
* to include some description of your company and the realm of its activities.
* Also add information on how to contact you by electronic and paper mail.
******************************************************/
#include "../lib/core.h"
#include "../lib/algorithm.h"
#include "../lib/io.h"
using namespace gctl;
int main(int argc, char const *argv[]) try
{
int t = 100;
_1d_array w1, w2, w3, w4;
window_hamming(t, w1);
window_hanning(t, w2);
window_triangle(t, w3);
window_blackman(t, w4);
std::ofstream ofile;
open_outfile(ofile, "windowfunc_ex.out");
for (size_t i = 0; i < t; i++)
{
ofile << i << " " << w1[i] << " " << w2[i] << " " << w3[i] << " " << w4[i] << "\n";
}
ofile.close();
}
catch(std::exception &e)
{
GCTL_ShowWhatError(e.what(), GCTL_ERROR_ERROR, 0, 0, 0);
}

59
src/mesh/create_tin_ex1.cpp Normal file
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@ -0,0 +1,59 @@
// File: create_tin_ex1.cpp
// Author: Dr. Yi Zhang (yizhang-geo@zju.edu.cn)
// Date: 2025-05-15
#include "gctl/mesh/tin.h"
#include "gctl/io/dsv_io.h"
using namespace gctl;
int main(int argc, char *argv[]) try
{
// read dem grid
std::vector<double> topo(10201);
std::ifstream infile("data/mesh/topo");
for (int i = 0; i < 10201; ++i)
{
infile >> topo[i];
}
infile.close();
std::vector<vertex3dc> box(4);
box[0].set(point3dc(500, 250, 0), 0);
box[1].set(point3dc(750, 250, 0), 1);
box[2].set(point3dc(750, 500, 0), 2);
box[3].set(point3dc(500, 500, 0), 3);
std::vector<region> box_region(1);
box_region[0].set(box, 5.0);
std::vector<double> err_records;
std::vector<vertex3dc*> tin_vert;
std::vector<tin_triangle*> tin_ele;
grd2tin(topo, 0, 1000, 0, 1000, 10, 10, tin_vert, tin_ele, 1.0, nullptr, &err_records, nullptr);
//grd2tin(topo, 0, 1000, 0, 1000, 10, 10, tin_vert, tin_ele, 1.0, nullptr, &err_records, &box_region);
save_tin2gmsh("data/mesh/tin_out", tin_vert, tin_ele);
save_tin2triangle("data/mesh/tin_out", tin_vert, tin_ele);
int times = err_records.size();
_1d_array errs;
errs.input(err_records);
destroy_vector(err_records);
dsv_io log_out;
log_out.init_table(err_records.size(), 2);
log_out.column_names({"Times", "Maxi-Error"});
log_out.fill_column(array<int>(err_records.size(), 1, 1), "Times");
log_out.fill_column(errs, "Maxi-Error");
log_out.save_text("data/mesh/tin_out", ".log");
// Destroy memories allocated by the dem2tin function
destroy_vector(tin_vert);
destroy_vector(tin_ele);
return 0;
}
catch (std::exception &e)
{
GCTL_ShowWhatError(e.what(), GCTL_ERROR_ERROR, 0, 0, 0);
}

46
src/mesh/create_tin_ex2.cpp Normal file
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@ -0,0 +1,46 @@
// File: create_tin_ex2.cpp
// Author: Dr. Yi Zhang (yizhang-geo@zju.edu.cn)
// Date: 2025-05-15
#include "gctl/mesh/tin.h"
#include "gctl/io/dsv_io.h"
using namespace gctl;
int main(int argc, char const *argv[]) try
{
// read dem grid
std::vector<dem_point> topo(8000);
std::ifstream infile("data/mesh/topo_rnd");
for (int i = 0; i < 8000; i++)
{
infile >> topo[i].x >> topo[i].y >> topo[i].elev;
}
infile.close();
std::vector<double> err_records;
std::vector<vertex3dc*> tin_vert;
std::vector<tin_triangle*> tin_ele;
rnd2tin(topo, tin_vert, tin_ele, 1.0, nullptr, &err_records);
save_tin2gmsh("data/mesh/tin_out", tin_vert, tin_ele);
save_tin2triangle("data/mesh/tin_out", tin_vert, tin_ele);
// Write a log file
std::ofstream logfile("data/mesh/tin_out.log");
logfile << "Insertion Maxi-Error\n";
for (int i = 0; i < err_records.size(); ++i)
{
logfile << i+1 << " " << err_records[i] << std::endl;
}
logfile.close();
// Destroy memories allocated by the dem2tin function
destroy_vector(tin_vert);
destroy_vector(tin_ele);
return 0;
}
catch (std::exception &e)
{
GCTL_ShowWhatError(e.what(), GCTL_ERROR_ERROR, 0, 0, 0);
}

56
src/mesh/create_tin_ex3.cpp Normal file
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@ -0,0 +1,56 @@
// File: create_tin_ex3.cpp
// Author: Dr. Yi Zhang (yizhang-geo@zju.edu.cn)
// Date: 2025-05-15
#include "gctl/mesh/tin.h"
using namespace gctl;
int main(int argc, char const *argv[]) try
{
// read dem grid
std::vector<double> topo(10201);
std::ifstream infile("data/mesh/topo");
for (int i = 0; i < 10201; ++i)
{
infile >> topo[i];
}
infile.close();
// Set outline polygon
std::vector<vertex3dc> valid_area(8);
valid_area[0].set(point3dc(-5, 500, 0), 0);
valid_area[1].set(point3dc(58, 365, 0), 1);
valid_area[2].set(point3dc(314, 158, 0), 2);
valid_area[3].set(point3dc(681, 22, 0), 3);
valid_area[4].set(point3dc(942, 105, 0), 4);
valid_area[5].set(point3dc(1005, 360, 0), 5);
valid_area[6].set(point3dc(1005, 1005, 0), 6);
valid_area[7].set(point3dc(-5, 1005, 0), 7);
std::vector<double> err_records;
std::vector<vertex3dc*> tin_vert;
std::vector<tin_triangle*> tin_ele;
grd2tin(topo, 0, 1000, 0, 1000, 10, 10, tin_vert, tin_ele, 1.0, &valid_area, &err_records);
save_tin2gmsh("data/mesh/tin_out", tin_vert, tin_ele);
save_tin2triangle("data/mesh/tin_out", tin_vert, tin_ele);
// Write a log file
std::ofstream logfile("data/mesh/tin_out.log");
logfile << "Insertion Maxi-Error\n";
for (int i = 0; i < err_records.size(); ++i)
{
logfile << i+1 << " " << err_records[i] << std::endl;
}
logfile.close();
// Destroy memories allocated by the dem2tin function
destroy_vector(tin_vert);
destroy_vector(tin_ele);
return 0;
}
catch (std::exception &e)
{
GCTL_ShowWhatError(e.what(), GCTL_ERROR_ERROR, 0, 0, 0);
}

57
src/mesh/create_tin_ex4.cpp Normal file
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@ -0,0 +1,57 @@
// File: create_tin_ex4.cpp
// Author: Dr. Yi Zhang (yizhang-geo@zju.edu.cn)
// Date: 2025-05-15
#include "gctl/mesh/tin.h"
using namespace gctl;
int main(int argc, char const *argv[]) try
{
// read dem grid
std::vector<dem_point> topo(8000);
std::ifstream infile("data/mesh/topo_rnd");
for (int i = 0; i < 8000; ++i)
{
infile >> topo[i].x >> topo[i].y >> topo[i].elev;
}
infile.close();
// Set outline polygon
std::vector<vertex3dc> valid_area(8);
valid_area[0].set(point3dc(-5, 500, 0), 0);
valid_area[1].set(point3dc(58, 365, 0), 1);
valid_area[2].set(point3dc(314, 158, 0), 2);
valid_area[3].set(point3dc(681, 22, 0), 3);
valid_area[4].set(point3dc(942, 105, 0), 4);
valid_area[5].set(point3dc(1005, 360, 0), 5);
valid_area[6].set(point3dc(1005, 1005, 0), 6);
valid_area[7].set(point3dc(-5, 1005, 0), 7);
std::vector<double> err_records;
std::vector<vertex3dc*> tin_vert;
std::vector<tin_triangle*> tin_ele;
rnd2tin(topo, tin_vert, tin_ele, 1.0, &valid_area, &err_records);
save_tin2gmsh("data/mesh/tin_out", tin_vert, tin_ele);
save_tin2triangle("data/mesh/tin_out", tin_vert, tin_ele);
// Write a log file
std::ofstream logfile("data/mesh/tin_out.log");
logfile << "Insertion Maxi-Error\n";
for (int i = 0; i < err_records.size(); ++i)
{
logfile << i+1 << " " << err_records[i] << std::endl;
}
logfile.close();
// Destroy memories allocated by the dem2tin function
for (int i = 0; i < tin_vert.size(); ++i)
destroy_vector(tin_vert);
destroy_vector(tin_ele);
return 0;
}
catch (std::exception &e)
{
GCTL_ShowWhatError(e.what(), GCTL_ERROR_ERROR, 0, 0, 0);
}

54
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/********************************************************
* ██████╗ ██████╗████████╗██╗
* ██╔════╝ ██╔════╝╚══██╔══╝██║
* ██║ ███╗██║ ██║ ██║
* ██║ ██║██║ ██║ ██║
* ╚██████╔╝╚██████╗ ██║ ███████╗
* ╚═════╝ ╚═════╝ ╚═╝ ╚══════╝
* Geophysical Computational Tools & Library (GCTL)
*
* Copyright (c) 2022 Yi Zhang (yizhang-geo@zju.edu.cn)
*
* GCTL is distributed under a dual licensing scheme. You can redistribute
* it and/or modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation, either version 2
* of the License, or (at your option) any later version. You should have
* received a copy of the GNU Lesser General Public License along with this
* program. If not, see <http://www.gnu.org/licenses/>.
*
* If the terms and conditions of the LGPL v.2. would prevent you from using
* the GCTL, please consider the option to obtain a commercial license for a
* fee. These licenses are offered by the GCTL's original author. As a rule,
* licenses are provided "as-is", unlimited in time for a one time fee. Please
* send corresponding requests to: yizhang-geo@zju.edu.cn. Please do not forget
* to include some description of your company and the realm of its activities.
* Also add information on how to contact you by electronic and paper mail.
******************************************************/
#include "../lib/mesh.h"
int main(int argc, char *argv[])
{
gctl::regular_grid rgd;
rgd.init("grid-1", "null", 4, 4, 0.0, 0.0, 1.0, 1.0);
rgd.add_data(gctl::NodeData, gctl::Scalar, "data-1", 2.5);
rgd.add_data(gctl::ElemData, gctl::Scalar, "data-2", 1.2, false);
rgd.add_data(gctl::NodeData, gctl::Scalar, "data-3", 1.0);
rgd.show_info();
gctl::meshdata data2 = rgd.get_data("data-2");
std::cout << "data name: " << data2.name_ << std::endl;
data2.datval_.show();
gctl::meshdata data3 = rgd.get_data("data-3");
std::cout << "data name: " << data3.name_ << std::endl;
data3.datval_.show();
rgd.diff("data-4", "data-1", "data-3");
rgd.remove_data("data-1");
rgd.show_info();
rgd.save_gmsh_withdata("ex1_out", gctl::OverWrite, gctl::NotPacked);
return 0;
}

37
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/********************************************************
* ██████╗ ██████╗████████╗██╗
* ██╔════╝ ██╔════╝╚══██╔══╝██║
* ██║ ███╗██║ ██║ ██║
* ██║ ██║██║ ██║ ██║
* ╚██████╔╝╚██████╗ ██║ ███████╗
* ╚═════╝ ╚═════╝ ╚═╝ ╚══════╝
* Geophysical Computational Tools & Library (GCTL)
*
* Copyright (c) 2022 Yi Zhang (yizhang-geo@zju.edu.cn)
*
* GCTL is distributed under a dual licensing scheme. You can redistribute
* it and/or modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation, either version 2
* of the License, or (at your option) any later version. You should have
* received a copy of the GNU Lesser General Public License along with this
* program. If not, see <http://www.gnu.org/licenses/>.
*
* If the terms and conditions of the LGPL v.2. would prevent you from using
* the GCTL, please consider the option to obtain a commercial license for a
* fee. These licenses are offered by the GCTL's original author. As a rule,
* licenses are provided "as-is", unlimited in time for a one time fee. Please
* send corresponding requests to: yizhang-geo@zju.edu.cn. Please do not forget
* to include some description of your company and the realm of its activities.
* Also add information on how to contact you by electronic and paper mail.
******************************************************/
#include "../lib/mesh.h"
int main(int argc, char *argv[])
{
gctl::regular_mesh_sph_3d rm_3ds;
rm_3ds.init("mesh-1", "null", 30.25, 30.25, 2005, 0.5, 0.5, 10, 40, 40, 50);
rm_3ds.add_data(gctl::ElemData, gctl::Scalar, "data-1", 2.5);
rm_3ds.save_gmsh_withdata("mesh_sample10",gctl::OverWrite, gctl::NotPacked);
return 0;
}

62
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/********************************************************
* ██████╗ ██████╗████████╗██╗
* ██╔════╝ ██╔════╝╚══██╔══╝██║
* ██║ ███╗██║ ██║ ██║
* ██║ ██║██║ ██║ ██║
* ╚██████╔╝╚██████╗ ██║ ███████╗
* ╚═════╝ ╚═════╝ ╚═╝ ╚══════╝
* Geophysical Computational Tools & Library (GCTL)
*
* Copyright (c) 2022 Yi Zhang (yizhang-geo@zju.edu.cn)
*
* GCTL is distributed under a dual licensing scheme. You can redistribute
* it and/or modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation, either version 2
* of the License, or (at your option) any later version. You should have
* received a copy of the GNU Lesser General Public License along with this
* program. If not, see <http://www.gnu.org/licenses/>.
*
* If the terms and conditions of the LGPL v.2. would prevent you from using
* the GCTL, please consider the option to obtain a commercial license for a
* fee. These licenses are offered by the GCTL's original author. As a rule,
* licenses are provided "as-is", unlimited in time for a one time fee. Please
* send corresponding requests to: yizhang-geo@zju.edu.cn. Please do not forget
* to include some description of your company and the realm of its activities.
* Also add information on how to contact you by electronic and paper mail.
******************************************************/
#include "../lib/mesh.h"
int main(int argc, char *argv[])
{
std::string dname = "example";
std::string dname2= "another-example";
gctl::regular_grid rgd;
rgd.init("grid-1", "null", 15, 10, 0.0, 0.0, 1.0, 1.0);
gctl::meshdata &data = rgd.add_data(gctl::NodeData, gctl::Scalar, dname, 0.0);
for (int j = 0; j < rgd.get_ydim(); j++)
{
for (int i = 0; i < rgd.get_xdim(); i++)
{
data.datval_[i + j*rgd.get_xdim()] = i;
}
}
gctl::meshdata &data2 = rgd.add_data(gctl::NodeData, gctl::Scalar, dname2, 0.0);
for (int j = 0; j < rgd.get_ydim(); j++)
{
for (int i = 0; i < rgd.get_xdim(); i++)
{
data2.datval_[i + j*rgd.get_xdim()] = j;
}
}
// disable the output of data object named dname2
//data2.output_ok_ = false;
rgd.show_info();
rgd.save_netcdf_grid("sample2-out", gctl::NodeData);
return 0;
}

82
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/********************************************************
* ██████╗ ██████╗████████╗██╗
* ██╔════╝ ██╔════╝╚══██╔══╝██║
* ██║ ███╗██║ ██║ ██║
* ██║ ██║██║ ██║ ██║
* ╚██████╔╝╚██████╗ ██║ ███████╗
* ╚═════╝ ╚═════╝ ╚═╝ ╚══════╝
* Geophysical Computational Tools & Library (GCTL)
*
* Copyright (c) 2022 Yi Zhang (yizhang-geo@zju.edu.cn)
*
* GCTL is distributed under a dual licensing scheme. You can redistribute
* it and/or modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation, either version 2
* of the License, or (at your option) any later version. You should have
* received a copy of the GNU Lesser General Public License along with this
* program. If not, see <http://www.gnu.org/licenses/>.
*
* If the terms and conditions of the LGPL v.2. would prevent you from using
* the GCTL, please consider the option to obtain a commercial license for a
* fee. These licenses are offered by the GCTL's original author. As a rule,
* licenses are provided "as-is", unlimited in time for a one time fee. Please
* send corresponding requests to: yizhang-geo@zju.edu.cn. Please do not forget
* to include some description of your company and the realm of its activities.
* Also add information on how to contact you by electronic and paper mail.
******************************************************/
#include "../lib/mesh.h"
int main(int argc, char *argv[]) try
{
std::string dname = "example";
std::string dname2= "another-example";
gctl::regular_grid rgd;
rgd.init("grid-1", "this is a test message.", 15, 10, 0.0, 0.0, 1.0, 1.0);
gctl::meshdata &data = rgd.add_data(gctl::NodeData, gctl::Scalar, dname, 0.0);
for (int j = 0; j < rgd.get_ydim(); j++)
{
for (int i = 0; i < rgd.get_xdim(); i++)
{
data.datval_[i + j*rgd.get_xdim()] = i;
}
}
gctl::meshdata &data2 = rgd.add_data(gctl::ElemData, gctl::Scalar, dname2, 0.0);
for (int j = 0; j < rgd.get_ydim()-1; j++)
{
for (int i = 0; i < rgd.get_xdim()-1; i++)
{
data2.datval_[i + j*(rgd.get_xdim()-1)] = j;
}
}
rgd.save_binary("sample3-out");
rgd.save_netcdf_grid("sample3-out1", dname);
rgd.save_netcdf_grid("sample3-out2", dname2);
gctl::regular_grid rgd2;
rgd2.load_binary("sample3-out");
rgd2.show_info();
gctl::meshdata &data3 = rgd2.get_data(dname);
for (int i = 0; i < data3.datval_.size(); i++)
{
std::cout << data3.datval_[i] << " ";
}
std::cout << std::endl;
gctl::meshdata &data4 = rgd2.get_data(dname2);
for (int i = 0; i < data4.datval_.size(); i++)
{
std::cout << data4.datval_[i] << " ";
}
std::cout << std::endl;
return 0;
}
catch(std::exception &e)
{
GCTL_ShowWhatError(e.what(), GCTL_ERROR_ERROR, 0, 0, 0);
}

60
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/********************************************************
* ██████╗ ██████╗████████╗██╗
* ██╔════╝ ██╔════╝╚══██╔══╝██║
* ██║ ███╗██║ ██║ ██║
* ██║ ██║██║ ██║ ██║
* ╚██████╔╝╚██████╗ ██║ ███████╗
* ╚═════╝ ╚═════╝ ╚═╝ ╚══════╝
* Geophysical Computational Tools & Library (GCTL)
*
* Copyright (c) 2022 Yi Zhang (yizhang-geo@zju.edu.cn)
*
* GCTL is distributed under a dual licensing scheme. You can redistribute
* it and/or modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation, either version 2
* of the License, or (at your option) any later version. You should have
* received a copy of the GNU Lesser General Public License along with this
* program. If not, see <http://www.gnu.org/licenses/>.
*
* If the terms and conditions of the LGPL v.2. would prevent you from using
* the GCTL, please consider the option to obtain a commercial license for a
* fee. These licenses are offered by the GCTL's original author. As a rule,
* licenses are provided "as-is", unlimited in time for a one time fee. Please
* send corresponding requests to: yizhang-geo@zju.edu.cn. Please do not forget
* to include some description of your company and the realm of its activities.
* Also add information on how to contact you by electronic and paper mail.
******************************************************/
#include "../lib/mesh.h"
int main(int argc, char *argv[]) try
{
std::string dname = "vector-data";
gctl::regular_grid rgd;
rgd.init("grid-example", "this grid can store vectors. Yeah!", 15, 10, 0.0, 0.0, 1.0, 1.0);
gctl::array<gctl::point3dc> init_data(rgd.get_ydim()*rgd.get_xdim());
for (int j = 0; j < rgd.get_ydim(); j++)
{
for (int i = 0; i < rgd.get_xdim(); i++)
{
init_data[i + j*rgd.get_xdim()].x = i;
init_data[i + j*rgd.get_xdim()].y = j;
init_data[i + j*rgd.get_xdim()].z = i+j;
}
}
gctl::meshdata data = rgd.add_data(gctl::NodeData, dname, init_data);
rgd.save_binary("sample4-out");
gctl::regular_grid rgd2;
rgd2.load_binary("sample4-out");
rgd2.show_info();
return 0;
}
catch(std::exception &e)
{
GCTL_ShowWhatError(e.what(), GCTL_ERROR_ERROR, 0, 0, 0);
}

43
src/mesh/mesh_ex5.cpp Normal file
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@ -0,0 +1,43 @@
/********************************************************
* ██████╗ ██████╗████████╗██╗
* ██╔════╝ ██╔════╝╚══██╔══╝██║
* ██║ ███╗██║ ██║ ██║
* ██║ ██║██║ ██║ ██║
* ╚██████╔╝╚██████╗ ██║ ███████╗
* ╚═════╝ ╚═════╝ ╚═╝ ╚══════╝
* Geophysical Computational Tools & Library (GCTL)
*
* Copyright (c) 2022 Yi Zhang (yizhang-geo@zju.edu.cn)
*
* GCTL is distributed under a dual licensing scheme. You can redistribute
* it and/or modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation, either version 2
* of the License, or (at your option) any later version. You should have
* received a copy of the GNU Lesser General Public License along with this
* program. If not, see <http://www.gnu.org/licenses/>.
*
* If the terms and conditions of the LGPL v.2. would prevent you from using
* the GCTL, please consider the option to obtain a commercial license for a
* fee. These licenses are offered by the GCTL's original author. As a rule,
* licenses are provided "as-is", unlimited in time for a one time fee. Please
* send corresponding requests to: yizhang-geo@zju.edu.cn. Please do not forget
* to include some description of your company and the realm of its activities.
* Also add information on how to contact you by electronic and paper mail.
******************************************************/
#include "../lib/mesh.h"
int main(int argc, char *argv[]) try
{
gctl::regular_grid rgd;
rgd.load_netcdf_grid("data/out/sample3-out1", gctl::ElemData, "x", "y");
rgd.show_info();
rgd.save_netcdf_grid("data/out/sample5-out", "example");
return 0;
}
catch(std::exception &e)
{
GCTL_ShowWhatError(e.what(), GCTL_ERROR_ERROR, 0, 0, 0);
}

66
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/********************************************************
* ██████╗ ██████╗████████╗██╗
* ██╔════╝ ██╔════╝╚══██╔══╝██║
* ██║ ███╗██║ ██║ ██║
* ██║ ██║██║ ██║ ██║
* ╚██████╔╝╚██████╗ ██║ ███████╗
* ╚═════╝ ╚═════╝ ╚═╝ ╚══════╝
* Geophysical Computational Tools & Library (GCTL)
*
* Copyright (c) 2022 Yi Zhang (yizhang-geo@zju.edu.cn)
*
* GCTL is distributed under a dual licensing scheme. You can redistribute
* it and/or modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation, either version 2
* of the License, or (at your option) any later version. You should have
* received a copy of the GNU Lesser General Public License along with this
* program. If not, see <http://www.gnu.org/licenses/>.
*
* If the terms and conditions of the LGPL v.2. would prevent you from using
* the GCTL, please consider the option to obtain a commercial license for a
* fee. These licenses are offered by the GCTL's original author. As a rule,
* licenses are provided "as-is", unlimited in time for a one time fee. Please
* send corresponding requests to: yizhang-geo@zju.edu.cn. Please do not forget
* to include some description of your company and the realm of its activities.
* Also add information on how to contact you by electronic and paper mail.
******************************************************/
#include "../lib/mesh.h"
int main(int argc, char *argv[]) try
{
gctl::regular_mesh_2d rg_mesh;
rg_mesh.init("mesh-example", "this mesh can store vectors. Yeah!", 15, 10, 0.5, 0.5, 1.0, 1.0);
int ybnum = rg_mesh.get_ybnum();
int xbnum = rg_mesh.get_xbnum();
gctl::array<gctl::point3dc> init_data(ybnum*xbnum);
for (int j = 0; j < ybnum; j++)
{
for (int i = 0; i < xbnum; i++)
{
init_data[i + j*xbnum].x = i;
init_data[i + j*xbnum].y = j;
init_data[i + j*xbnum].z = i+j;
}
}
rg_mesh.add_data(gctl::ElemData, "vector-data", init_data);
gctl::meshdata &data2= rg_mesh.add_data(gctl::NodeData, gctl::Scalar, "double-data", 0.0);
for (int j = 0; j < ybnum+1; j++)
{
for (int i = 0; i < xbnum+1; i++)
{
data2.datval_[i + j*(xbnum+1)] = i+j;
}
}
rg_mesh.save_gmsh_withdata("sample6-out", gctl::OverWrite);
return 0;
}
catch(std::exception &e)
{
GCTL_ShowWhatError(e.what(), GCTL_ERROR_ERROR, 0, 0, 0);
}

57
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/********************************************************
* ██████╗ ██████╗████████╗██╗
* ██╔════╝ ██╔════╝╚══██╔══╝██║
* ██║ ███╗██║ ██║ ██║
* ██║ ██║██║ ██║ ██║
* ╚██████╔╝╚██████╗ ██║ ███████╗
* ╚═════╝ ╚═════╝ ╚═╝ ╚══════╝
* Geophysical Computational Tools & Library (GCTL)
*
* Copyright (c) 2022 Yi Zhang (yizhang-geo@zju.edu.cn)
*
* GCTL is distributed under a dual licensing scheme. You can redistribute
* it and/or modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation, either version 2
* of the License, or (at your option) any later version. You should have
* received a copy of the GNU Lesser General Public License along with this
* program. If not, see <http://www.gnu.org/licenses/>.
*
* If the terms and conditions of the LGPL v.2. would prevent you from using
* the GCTL, please consider the option to obtain a commercial license for a
* fee. These licenses are offered by the GCTL's original author. As a rule,
* licenses are provided "as-is", unlimited in time for a one time fee. Please
* send corresponding requests to: yizhang-geo@zju.edu.cn. Please do not forget
* to include some description of your company and the realm of its activities.
* Also add information on how to contact you by electronic and paper mail.
******************************************************/
#include "../lib/mesh.h"
int main(int argc, char *argv[]) try
{
gctl::regular_mesh_3d rg_mesh;
rg_mesh.init("mesh-example", "this mesh can store vectors. Yeah!", 15, 10, 10, 0.5, 0.5, 0.5, 1.0, 1.0, 1.0);
int ybnum = rg_mesh.get_ybnum();
int xbnum = rg_mesh.get_xbnum();
int zbnum = rg_mesh.get_zbnum();
gctl::meshdata &data = rg_mesh.add_data(gctl::NodeData, gctl::Scalar, "double-data", 0.0);
for (int k = 0; k < zbnum+1; k++)
{
for (int j = 0; j < ybnum+1; j++)
{
for (int i = 0; i < xbnum+1; i++)
{
data.datval_[i + j*(xbnum+1) + k*(xbnum+1)*(ybnum+1)] = i+j+k;
}
}
}
rg_mesh.save_gmsh_withdata("sample7-out", "double-data", gctl::OverWrite);
return 0;
}
catch(std::exception &e)
{
GCTL_ShowWhatError(e.what(), GCTL_ERROR_ERROR, 0, 0, 0);
}

47
src/mesh/mesh_ex8.cpp Normal file
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/********************************************************
* ██████╗ ██████╗████████╗██╗
* ██╔════╝ ██╔════╝╚══██╔══╝██║
* ██║ ███╗██║ ██║ ██║
* ██║ ██║██║ ██║ ██║
* ╚██████╔╝╚██████╗ ██║ ███████╗
* ╚═════╝ ╚═════╝ ╚═╝ ╚══════╝
* Geophysical Computational Tools & Library (GCTL)
*
* Copyright (c) 2022 Yi Zhang (yizhang-geo@zju.edu.cn)
*
* GCTL is distributed under a dual licensing scheme. You can redistribute
* it and/or modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation, either version 2
* of the License, or (at your option) any later version. You should have
* received a copy of the GNU Lesser General Public License along with this
* program. If not, see <http://www.gnu.org/licenses/>.
*
* If the terms and conditions of the LGPL v.2. would prevent you from using
* the GCTL, please consider the option to obtain a commercial license for a
* fee. These licenses are offered by the GCTL's original author. As a rule,
* licenses are provided "as-is", unlimited in time for a one time fee. Please
* send corresponding requests to: yizhang-geo@zju.edu.cn. Please do not forget
* to include some description of your company and the realm of its activities.
* Also add information on how to contact you by electronic and paper mail.
******************************************************/
#include "../lib/mesh.h"
int main(int argc, char *argv[]) try
{
gctl::triangle2d_mesh t_mesh;
t_mesh.load_triangle("sample8", gctl::Packed);
t_mesh.add_data(gctl::ElemData, gctl::Scalar, "example", 1.0);
t_mesh.save_gmsh_withdata("sample8-out", "example", gctl::OverWrite, gctl::NotPacked);
t_mesh.save_binary("sample8-out");
gctl::triangle2d_mesh t2_mesh;
t2_mesh.load_binary("sample8-out");
t2_mesh.show_info();
return 0;
}
catch(std::exception &e)
{
GCTL_ShowWhatError(e.what(), GCTL_ERROR_ERROR, 0, 0, 0);
}

65
src/mesh/mesh_ex9.cpp Normal file
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/********************************************************
* ██████╗ ██████╗████████╗██╗
* ██╔════╝ ██╔════╝╚══██╔══╝██║
* ██║ ███╗██║ ██║ ██║
* ██║ ██║██║ ██║ ██║
* ╚██████╔╝╚██████╗ ██║ ███████╗
* ╚═════╝ ╚═════╝ ╚═╝ ╚══════╝
* Geophysical Computational Tools & Library (GCTL)
*
* Copyright (c) 2022 Yi Zhang (yizhang-geo@zju.edu.cn)
*
* GCTL is distributed under a dual licensing scheme. You can redistribute
* it and/or modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation, either version 2
* of the License, or (at your option) any later version. You should have
* received a copy of the GNU Lesser General Public License along with this
* program. If not, see <http://www.gnu.org/licenses/>.
*
* If the terms and conditions of the LGPL v.2. would prevent you from using
* the GCTL, please consider the option to obtain a commercial license for a
* fee. These licenses are offered by the GCTL's original author. As a rule,
* licenses are provided "as-is", unlimited in time for a one time fee. Please
* send corresponding requests to: yizhang-geo@zju.edu.cn. Please do not forget
* to include some description of your company and the realm of its activities.
* Also add information on how to contact you by electronic and paper mail.
******************************************************/
#include "../lib/mesh.h"
int main(int argc, char *argv[]) try
{
gctl::array<double> xs(15);
for (int i = 0; i < 15; i++)
{
xs[i] = i+1;
}
gctl::array<double> ys(10);
for (int i = 0; i < 10; i++)
{
ys[i] = i+1;
}
gctl::linear_mesh_2d l2d_mesh;
l2d_mesh.init("mesh-example", "This is a linear mesh", 0.5, 0.5, xs, ys);
int ybnum = l2d_mesh.get_ybnum();
int xbnum = l2d_mesh.get_xbnum();
gctl::meshdata &data = l2d_mesh.add_data(gctl::ElemData, gctl::Scalar, "double-data", 0.0);
for (int j = 0; j < ybnum; j++)
{
for (int i = 0; i < xbnum; i++)
{
data.datval_[i + j*xbnum] = i+j;
}
}
l2d_mesh.save_gmsh_withdata("sample9-out", gctl::OverWrite, gctl::NotPacked);
return 0;
}
catch(std::exception &e)
{
GCTL_ShowWhatError(e.what(), GCTL_ERROR_ERROR, 0, 0, 0);
}

109
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@ -0,0 +1,109 @@
/********************************************************
* ██████╗ ██████╗████████╗██╗
* ██╔════╝ ██╔════╝╚══██╔══╝██║
* ██║ ███╗██║ ██║ ██║
* ██║ ██║██║ ██║ ██║
* ╚██████╔╝╚██████╗ ██║ ███████╗
* ╚═════╝ ╚═════╝ ╚═╝ ╚══════╝
* Geophysical Computational Tools & Library (GCTL)
*
* Copyright (c) 2023 Yi Zhang (yizhang-geo@zju.edu.cn)
*
* GCTL is distributed under a dual licensing scheme. You can redistribute
* it and/or modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation, either version 2
* of the License, or (at your option) any later version. You should have
* received a copy of the GNU Lesser General Public License along with this
* program. If not, see <http://www.gnu.org/licenses/>.
*
* If the terms and conditions of the LGPL v.2. would prevent you from using
* the GCTL, please consider the option to obtain a commercial license for a
* fee. These licenses are offered by the GCTL's original author. As a rule,
* licenses are provided "as-is", unlimited in time for a one time fee. Please
* send corresponding requests to: yizhang-geo@zju.edu.cn. Please do not forget
* to include some description of your company and the realm of its activities.
* Also add information on how to contact you by electronic and paper mail.
******************************************************/
#include "../lib/mesh/mesh_io.h"
using namespace gctl;
int main(int argc, char const *argv[]) try
{
mesh_io mshio;
mshio.read_gmsh_v2_ascii("tmp/test");
mshio.info();
array<vertex3dc> nodes;
array<triangle> tris;
mshio.select_elements("Bz (pT)", NodeData);
mshio.export_selected_to(tris, nodes);
//meshio_data &d = mshio.get_data("Bz (pT)", NodeData);
//array<double> dat = d.val;
array<double> dat1 = mshio.get_selected_data("Bx (pT)", NodeData);
array<double> dat2 = mshio.get_selected_data("By (pT)", NodeData);
array<double> dat3 = mshio.get_selected_data("Bz (pT)", NodeData);
mesh_io mshio2;
mshio2.import_from(tris, nodes);
mshio2.add_data("Bx (pT)", dat1, NodeData, OverWrite);
mshio2.add_data("By (pT)", dat2, NodeData, OverWrite);
mshio2.add_data("Bz (pT)", dat3, NodeData, OverWrite);
mshio2.save_gmsh_v2_ascii("tmp");
mshio2.info();
/*
mshio.read_tetgen_ascii("tmp/ex1.1");
mshio.edit_group(Disable, GeometryTag, 5);
mshio.edit_group(GeometryTag, 1, PhysicalTag, 1);
mshio.edit_group(GeometryTag, 2, PhysicalTag, 2);
mshio.edit_group(GeometryTag, 3, PhysicalTag, 3);
mshio.edit_group(GeometryTag, 4, PhysicalTag, 4);
mshio.edit_group(GeometryTag, 1, "Boundary");
mshio.edit_group(GeometryTag, 2, "Body1");
mshio.edit_group(GeometryTag, 3, "Body2");
mshio.edit_group(GeometryTag, 4, "Body3");
mshio.save_gmsh_v2_ascii("tmp/ex1.1");
*/
/*
mshio.read_gmsh_v2_ascii("tmp/ex1.1");
mshio.convert_tags_to_data(GeometryTag);
array<double> body_val(mshio.element_size("Body2"), 2.0);
mshio.add_element_data("BodyValue", "Body2", body_val);
array<double> body_val2(mshio.element_size("Body3"), 1.0);
mshio.add_element_data("BodyValue", "Body3", body_val2);
mshio.save_gmsh_v2_ascii("tmp/ex1.2");
//mshio.save_vtk_legacy_ascii("tmp/ex1.1");
mshio.info();
const array<vertex3dc> &nodes = mshio.get_nodes();
array<tetrahedron> body2_tets;
mshio.export_elements_to(body2_tets, "All");
gmshio gio;
gio.init_file("tmp.msh", Output);
gio.set_packed(NotPacked, Output);
gio.save_mesh(body2_tets, nodes);
*/
/*
mshio.read_gmsh_v2_ascii("tmp/wjb.1");
mshio.edit_group(Disable);
mshio.edit_group(Enable, GeometryTag, 3);
mshio.edit_group(Enable, GeometryTag, 8);
mshio.edit_group(Enable, GeometryTag, 9);
mshio.save_gmsh_v2_ascii("tmp/wjb.2");
*/
return 0;
}
catch(std::exception &e)
{
GCTL_ShowWhatError(e.what(), GCTL_ERROR_ERROR, 0, 0, 0);
}

55
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@ -0,0 +1,55 @@
/********************************************************
* ██████╗ ██████╗████████╗██╗
* ██╔════╝ ██╔════╝╚══██╔══╝██║
* ██║ ███╗██║ ██║ ██║
* ██║ ██║██║ ██║ ██║
* ╚██████╔╝╚██████╗ ██║ ███████╗
* ╚═════╝ ╚═════╝ ╚═╝ ╚══════╝
* Geophysical Computational Tools & Library (GCTL)
*
* Copyright (c) 2023 Yi Zhang (yizhang-geo@zju.edu.cn)
*
* GCTL is distributed under a dual licensing scheme. You can redistribute
* it and/or modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation, either version 2
* of the License, or (at your option) any later version. You should have
* received a copy of the GNU Lesser General Public License along with this
* program. If not, see <http://www.gnu.org/licenses/>.
*
* If the terms and conditions of the LGPL v.2. would prevent you from using
* the GCTL, please consider the option to obtain a commercial license for a
* fee. These licenses are offered by the GCTL's original author. As a rule,
* licenses are provided "as-is", unlimited in time for a one time fee. Please
* send corresponding requests to: yizhang-geo@zju.edu.cn. Please do not forget
* to include some description of your company and the realm of its activities.
* Also add information on how to contact you by electronic and paper mail.
******************************************************/
#include "../lib/mesh/tri2d_mesh.h"
using namespace gctl;
int main(int argc, char const *argv[]) try
{
mesh_io mshio;
mshio.read_gmsh_v2_ascii("tmp/tri2d");
mshio.info();
array<vertex2dc> nodes;
array<triangle2d> tris;
mshio.select_elements(_3NodeTriangle);
mshio.export_selected_to(tris, nodes);
_1d_array data = mshio.get_selected_data("Model slowness (s/km)", ElemData);
triangle2d_mesh tri2dmesh;
tri2dmesh.init("Test", "This is a test.", nodes, tris);
tri2dmesh.add_data(ElemData, "Test Data", data);
tri2dmesh.show_info();
tri2dmesh.save_gmsh_withdata("tri2d_out", OverWrite);
return 0;
}
catch(std::exception &e)
{
GCTL_ShowWhatError(e.what(), GCTL_ERROR_ERROR, 0, 0, 0);
}

147
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/********************************************************
* ██████╗ ██████╗████████╗██╗
* ██╔════╝ ██╔════╝╚══██╔══╝██║
* ██║ ███╗██║ ██║ ██║
* ██║ ██║██║ ██║ ██║
* ╚██████╔╝╚██████╗ ██║ ███████╗
* ╚═════╝ ╚═════╝ ╚═╝ ╚══════╝
* Geophysical Computational Tools & Library (GCTL)
*
* Copyright (c) 2022 Yi Zhang (yizhang-geo@zju.edu.cn)
*
* GCTL is distributed under a dual licensing scheme. You can redistribute
* it and/or modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation, either version 2
* of the License, or (at your option) any later version. You should have
* received a copy of the GNU Lesser General Public License along with this
* program. If not, see <http://www.gnu.org/licenses/>.
*
* If the terms and conditions of the LGPL v.2. would prevent you from using
* the GCTL, please consider the option to obtain a commercial license for a
* fee. These licenses are offered by the GCTL's original author. As a rule,
* licenses are provided "as-is", unlimited in time for a one time fee. Please
* send corresponding requests to: yizhang-geo@zju.edu.cn. Please do not forget
* to include some description of your company and the realm of its activities.
* Also add information on how to contact you by electronic and paper mail.
******************************************************/
#include "../lib/optimization.h"
#include "gctl/math/gaussfunc.h"
using namespace gctl;
class cfg : public lgd_solver
{
private:
std::vector<gaussian_para2d> gs1_, gs2_;
array<double> g1_, g2_;
common_gradient cmg_;
array<double> x_;
array<double> xm_;
array<double> xs_;
public:
cfg(/* args */){}
~cfg(){}
virtual double LGD_Evaluate(const array<double> &x, array<double> &g);
void read_gaussians(std::string file, std::vector<gaussian_para2d> &gs);
void routine(int argc, char *argv[]);
};
double cfg::LGD_Evaluate(const array<double> &x, array<double> &g)
{
double f, fx = 0.0;
g1_.assign(0.0);
g2_.assign(0.0);
f = 0.0;
for (int i = 0; i < gs1_.size(); i++)
{
f += -1e+3*gctl::gaussian_dist2d(x[0], x[1], gs1_[i]);
g1_[0] += -1e+3*gctl::gaussian_dist2d(x[0], x[1], gs1_[i], gctl::Dx);
g1_[1] += -1e+3*gctl::gaussian_dist2d(x[0], x[1], gs1_[i], gctl::Dy);
}
cmg_.fill_model_gradient(0, f, g1_);
fx += f;
f = 0.0;
for (int i = 0; i < gs2_.size(); i++)
{
f += -1e+3*gctl::gaussian_dist2d(x[0], x[1], gs2_[i]);
g2_[0] += -1e+3*gctl::gaussian_dist2d(x[0], x[1], gs2_[i], gctl::Dx);
g2_[1] += -1e+3*gctl::gaussian_dist2d(x[0], x[1], gs2_[i], gctl::Dy);
}
cmg_.fill_model_gradient(1, f, g2_);
fx += f;
fx += 0.666027; // 目标值
g = cmg_.get_common_gradient();
return fx;
}
void cfg::read_gaussians(std::string file, std::vector<gaussian_para2d> &gs)
{
gaussian_para2d tmp_p;
std::string tmp_str;
std::stringstream tmp_ss;
std::ifstream infile;
gctl::open_infile(infile, file, ".txt");
while(getline(infile, tmp_str))
{
if (tmp_str[0] == '#') continue;
else
{
gctl::str2ss(tmp_str, tmp_ss);
tmp_ss >> tmp_p.mu_x >> tmp_p.mu_y >> tmp_p.sigma_x >> tmp_p.sigma_y >> tmp_p.rho;
gs.push_back(tmp_p);
}
}
infile.close();
return;
}
void cfg::routine(int argc, char *argv[])
{
cmg_.init(2, 2);
g1_.resize(2);
g2_.resize(2);
read_gaussians("example/data/gauss_model", gs1_);
read_gaussians("example/data/gauss_model2", gs2_);
x_.resize(2, 20.0);
xm_.resize(2, 0.0);
xs_.resize(2, 0.0);
array<double> low(2, 0.0);
array<double> high(2, 100.0);
lgd_para para = default_lgd_para();
para.alpha = 0.01;
para.flight_times = 1000;
set_lgd_para(para);
set_lgd_record_trace();
LGD_Minimize(x_, xm_, xs_, low, high);
save_lgd_trace("trace.txt");
std::cout << "x = (" << x_[0] << ", " << x_[1] << ")\n";
return;
}
int main(int argc, char *argv[]) try
{
cfg c;
c.routine(argc, argv);
return 0;
}
catch (const std::exception& e)
{
GCTL_ShowWhatError(e.what(), GCTL_ERROR_ERROR, 0, 0, 0);
}

174
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/********************************************************
* ██████╗ ██████╗████████╗██╗
* ██╔════╝ ██╔════╝╚══██╔══╝██║
* ██║ ███╗██║ ██║ ██║
* ██║ ██║██║ ██║ ██║
* ╚██████╔╝╚██████╗ ██║ ███████╗
* ╚═════╝ ╚═════╝ ╚═╝ ╚══════╝
* Geophysical Computational Tools & Library (GCTL)
*
* Copyright (c) 2022 Yi Zhang (yizhang-geo@zju.edu.cn)
*
* GCTL is distributed under a dual licensing scheme. You can redistribute
* it and/or modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation, either version 2
* of the License, or (at your option) any later version. You should have
* received a copy of the GNU Lesser General Public License along with this
* program. If not, see <http://www.gnu.org/licenses/>.
*
* If the terms and conditions of the LGPL v.2. would prevent you from using
* the GCTL, please consider the option to obtain a commercial license for a
* fee. These licenses are offered by the GCTL's original author. As a rule,
* licenses are provided "as-is", unlimited in time for a one time fee. Please
* send corresponding requests to: yizhang-geo@zju.edu.cn. Please do not forget
* to include some description of your company and the realm of its activities.
* Also add information on how to contact you by electronic and paper mail.
******************************************************/
#include "../lib/optimization/lcg.h"
#include "gctl/graphic/gnuplot.h"
#define M 1000
#define N 800
double max_diff(const gctl::array<double> &a, const gctl::array<double> &b)
{
double max = -1.0;
for (size_t i = 0; i < a.size(); i++)
{
max = std::max(sqrt((a[i] - b[i])*(a[i] - b[i])), max);
}
return max;
}
class ex1 : public gctl::lcg_solver
{
public:
ex1();
virtual ~ex1();
// 计算共轭梯度的B项
void cal_partb(const gctl::array<double> &x, gctl::array<double> &B);
//定义共轭梯度中Ax的算法
virtual void LCG_Ax(const gctl::array<double> &x, gctl::array<double> &ax);
virtual void LCG_Mx(const gctl::array<double> &x, gctl::array<double> &mx);
private:
gctl::matrix<double> kernel; // 普通二维数组做核矩阵
gctl::array<double> tmp_arr; // 中间结果数组
gctl::array<double> p; // 预优矩阵
};
ex1::ex1()
{
kernel.resize(M, N);
kernel.random_float(-1.0, 1.0, gctl::RdUniform);
tmp_arr.resize(M);
p.resize(N);
for (size_t i = 0; i < N; i++)
{
p[i] = 1.0;
}
double diag;
for (size_t i = 0; i < N; i++)
{
diag = 0.0;
for (size_t j = 0; j < M; j++)
{
diag += kernel[j][i]*kernel[j][i];
}
p[i] = 1.0/diag;
}
}
ex1::~ex1(){}
void ex1::cal_partb(const gctl::array<double> &x, gctl::array<double> &B)
{
LCG_Ax(x, B);
return;
}
void ex1::LCG_Ax(const gctl::array<double> &x, gctl::array<double> &ax)
{
matvec(tmp_arr, kernel, x);
matvec(ax, kernel, tmp_arr, gctl::Trans);
return;
}
void ex1::LCG_Mx(const gctl::array<double> &x, gctl::array<double> &mx)
{
vecmul(mx, p, x);
return;
}
int main(int argc, char const *argv[])
{
// 生成一组正演解
gctl::array<double> fm(N);
fm.random_float(1.0, 2.0, gctl::RdUniform);
ex1 test;
// 计算共轭梯度B项
gctl::array<double> B(N);
test.cal_partb(fm, B);
// 声明一组解
gctl::array<double> m(N, 0.0);
test.set_lcg_message(gctl::LCG_SOLUTION);
std::ofstream ofile("log.txt");
test.LCG_Minimize(m, B, gctl::LCG_CG, ofile);
ofile << "maximal difference: " << max_diff(fm, m) << std::endl;
test.save_convergence("convergence");
gctl::gnuplot gt;
gt.to_buffer();
gt.send("set terminal png size 800,600");
gt.send("set output \"convergence.png\"");
gt.send("plot \"convergence.txt\" using 1:2 with lines");
gt.send("set output");
gt.send_buffer();
m.assign(0.0);
test.LCG_Minimize(m, B, gctl::LCG_PCG, ofile);
ofile << "maximal difference: " << max_diff(fm, m) << std::endl;
m.assign(0.0);
test.LCG_Minimize(m, B, gctl::LCG_CGS, ofile);
ofile << "maximal difference: " << max_diff(fm, m) << std::endl;
ofile.close();
test.set_lcg_message(gctl::LCG_SOLUTION);
m.assign(0.0);
test.LCG_Minimize(m, B, gctl::LCG_BICGSTAB);
std::clog << "maximal difference: " << max_diff(fm, m) << std::endl;
m.assign(0.0);
test.LCG_Minimize(m, B, gctl::LCG_BICGSTAB2);
std::clog << "maximal difference: " << max_diff(fm, m) << std::endl;
gctl::array<double> low(N, 1.0);
gctl::array<double> hig(N, 2.0);
m.assign(0.0);
test.LCG_MinimizeConstrained(m, B, low, hig, gctl::LCG_PG);
std::clog << "maximal difference: " << max_diff(fm, m) << std::endl;
m.assign(0.0);
test.LCG_MinimizeConstrained(m, B, low, hig, gctl::LCG_SPG);
std::clog << "maximal difference: " << max_diff(fm, m) << std::endl;
return 0;
}

64
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/********************************************************
* ██████╗ ██████╗████████╗██╗
* ██╔════╝ ██╔════╝╚══██╔══╝██║
* ██║ ███╗██║ ██║ ██║
* ██║ ██║██║ ██║ ██║
* ╚██████╔╝╚██████╗ ██║ ███████╗
* ╚═════╝ ╚═════╝ ╚═╝ ╚══════╝
* Geophysical Computational Tools & Library (GCTL)
*
* Copyright (c) 2022 Yi Zhang (yizhang-geo@zju.edu.cn)
*
* GCTL is distributed under a dual licensing scheme. You can redistribute
* it and/or modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation, either version 2
* of the License, or (at your option) any later version. You should have
* received a copy of the GNU Lesser General Public License along with this
* program. If not, see <http://www.gnu.org/licenses/>.
*
* If the terms and conditions of the LGPL v.2. would prevent you from using
* the GCTL, please consider the option to obtain a commercial license for a
* fee. These licenses are offered by the GCTL's original author. As a rule,
* licenses are provided "as-is", unlimited in time for a one time fee. Please
* send corresponding requests to: yizhang-geo@zju.edu.cn. Please do not forget
* to include some description of your company and the realm of its activities.
* Also add information on how to contact you by electronic and paper mail.
******************************************************/
#include <iostream>
#include <iomanip>
#include "../lib/optimization.h"
#include "gctl/core.h"
#include "gctl/algorithms.h"
using std::cout;
using std::endl;
using std::setw;
int main(int argc, char const *argv[])
{
gctl::matrix<double> A(4, 3);
for (int i = 0; i < A.row_size(); i++)
{
for (int j = 0; j < A.col_size(); j++)
{
A[i][j] = 3*(i+1) + j - 2;
}
}
A[3][1] = 1;
gctl::array<double> x(3), y(3), m(3);
x.random_float(-1.0, 1.0, gctl::RdUniform, 452);
gctl::matvec(y, A, x);
cout<<"A(" << A.row_size() << ", " << A.col_size() << ") = " <<endl;
A.show();
gctl::svd svdd;
svdd.decompose(A);
svdd.solve(y, m);
cout << "x = "; x.show();
cout << "m = "; m.show();
return 0;
}

179
src/optimization/ex2.cpp Normal file
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/********************************************************
* ██████╗ ██████╗████████╗██╗
* ██╔════╝ ██╔════╝╚══██╔══╝██║
* ██║ ███╗██║ ██║ ██║
* ██║ ██║██║ ██║ ██║
* ╚██████╔╝╚██████╗ ██║ ███████╗
* ╚═════╝ ╚═════╝ ╚═╝ ╚══════╝
* Geophysical Computational Tools & Library (GCTL)
*
* Copyright (c) 2022 Yi Zhang (yizhang-geo@zju.edu.cn)
*
* GCTL is distributed under a dual licensing scheme. You can redistribute
* it and/or modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation, either version 2
* of the License, or (at your option) any later version. You should have
* received a copy of the GNU Lesser General Public License along with this
* program. If not, see <http://www.gnu.org/licenses/>.
*
* If the terms and conditions of the LGPL v.2. would prevent you from using
* the GCTL, please consider the option to obtain a commercial license for a
* fee. These licenses are offered by the GCTL's original author. As a rule,
* licenses are provided "as-is", unlimited in time for a one time fee. Please
* send corresponding requests to: yizhang-geo@zju.edu.cn. Please do not forget
* to include some description of your company and the realm of its activities.
* Also add information on how to contact you by electronic and paper mail.
******************************************************/
#include "../lib/optimization.h"
#define M 90
#define N 100
// get random floating points
double random_double(double l, double t)
{
return (t-l)*rand()*1.0/RAND_MAX + l;
}
// get random integral numbers
int random_int(int small, int big)
{
return (rand() % (big - small)) + small;
}
class ex2 : public gctl::lgd_solver
{
protected:
gctl::matrix<double> kernel;
gctl::array<double> obs, tmp;
protected:
double LGD_Evaluate(const gctl::array<double> &x, gctl::array<double> &g);
public:
ex2();
virtual ~ex2(){}
void CalObs(const gctl::array<double> &x);
};
ex2::ex2()
{
kernel.resize(M, N);
tmp.resize(M);
obs.resize(M);
srand(time(0));
// 添加一些大数
int tmp_id, tmp_size;
double tmp_val;
for (int i = 0; i < M; i++)
{
tmp_size = random_int(25, 35);
for (int j = 0; j < tmp_size; j++)
{
tmp_id = random_int(0, N);
tmp_val = random_double(-10, 10);
kernel[i][tmp_id] = tmp_val;
}
}
}
double ex2::LGD_Evaluate(const gctl::array<double> &x, gctl::array<double> &g)
{
for (int i = 0; i < M; i++)
{
tmp[i] = 0.0;
for (int j = 0; j < N; j++)
{
tmp[i] += kernel[i][j] * x[j];
}
tmp[i] -= obs[i];
//tmp[i] /= 1e-1;
}
for (int j = 0; j < N; j++)
{
g[j] = 0.0;
for (int i = 0; i < M; i++)
{
g[j] += kernel[i][j]*tmp[i];
}
g[j] *= 2.0/M;
}
double sum = 0.0;
for (int i = 0; i < M; i++)
{
sum += tmp[i]*tmp[i];
}
return sum/M;
}
void ex2::CalObs(const gctl::array<double> &x)
{
// 计算正演值
for (int i = 0; i < M; i++)
{
obs[i] = 0.0;
for (int j = 0; j < N; j++)
{
obs[i] += kernel[i][j]*x[j];
}
// 添加噪声
obs[i] += random_double(-1e-3, 1e-3);
}
}
int main(int argc, char const *argv[])
{
gctl::array<double> m(N, 0.0), mean_m(N, 0.0), stddev_m(N, 0.0), low(N), hig(N);
// 生成一组正演解 包含一些大值和一些小值
gctl::array<double> fm(N);
int N2 = (int) N/2;
srand(time(0));
for (int i = 0; i < N2; i++)
{
fm[i] = random_double(5, 10);
//fm[i] = 10.0;
}
for (int i = N2; i < N; i++)
{
fm[i] = random_double(1, 2);
//fm[i] = 1.0;
}
for (int i = 0; i < N2; i++)
{
low[i] = 4.0; // 对解的范围进行约束
hig[i] = 11.0;
}
for (int i = N2; i < N; i++)
{
low[i] = 0.0;
hig[i] = 3.0;
}
ex2 e;
e.CalObs(fm);
gctl::lgd_para my_para = e.default_lgd_para();
my_para.flight_times = 20000;
my_para.batch = 100;
my_para.fmt = 0.5;
my_para.smt = 0.05;
e.set_lgd_para(my_para);
e.LGD_Minimize(m, mean_m, stddev_m, low, hig);
for (int i = 0; i < N; i++)
{
std::cout << fm[i] << " " << m[i] << " " << mean_m[i] << " " << stddev_m[i] << " " << fabs(mean_m[i] - fm[i]) << std::endl;
}
return 0;
}

69
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#include "../lib/optimization.h"
class TEST_FUNC : public gctl::lbfgs_solver
{
public:
TEST_FUNC();
~TEST_FUNC();
virtual double LBFGS_Evaluate(const gctl::array<double> &x, gctl::array<double> &g);
void Routine();
private:
gctl::array<double> m_x;
};
TEST_FUNC::TEST_FUNC()
{
m_x.resize(3, 0.0);
}
TEST_FUNC::~TEST_FUNC(){}
// test functions
// 3 = 3*x1 + x2 + 2*x3*x3
// 1 = -3*x1 + 5*x2*x2 + 2*x1*x3
// -12 = 25*x1*x2 + 20*x3
double TEST_FUNC::LBFGS_Evaluate(const gctl::array<double> &x, gctl::array<double> &g)
{
double f0,f1,f2,temp;
f0 = 3*x[0] + x[1] + 2*x[2]*x[2] - 3.012; //这里添加一点噪声
f1 = -3*x[0] + 5*x[1]*x[1] + 2*x[0]*x[2] - 1.04252;
f2 = 25*x[0]*x[1] + 20*x[2] + 12.12479;
temp = sqrt(f0*f0+f1*f1+f2*f2);
g[0] = 0.5*(6*f0+2*f1*(2*x[2]-3)+50*f2*x[1])/temp;
g[1] = 0.5*(2*f0+20*f1*x[1]+50*f2*x[0])/temp;
g[2] = 0.5*(8*f0*x[2]+4*f1*x[0]+40*f2)/temp;
return temp;
}
void TEST_FUNC::Routine()
{
gctl::lbfgs_para self_para = default_lbfgs_para();
self_para.m = 10;
self_para.past = 5;
self_para.residual = 1e-10;
//self_para.min_step = 1e-30;
//self_para.max_linesearch = 40;
//self_para.linesearch = gctl::LBFGS_LINESEARCH_BACKTRACKING_WOLFE;
set_lbfgs_para(self_para);
std::ofstream ofile("log.txt");
show_lbfgs_para(ofile);
double fx = LBFGS_Minimize(m_x, ofile);
ofile.close();
m_x.show();
return;
}
int main(int argc, char const *argv[])
{
TEST_FUNC test;
test.Routine();
return 0;
}

91
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/********************************************************
* ██████╗ ██████╗████████╗██╗
* ██╔════╝ ██╔════╝╚══██╔══╝██║
* ██║ ███╗██║ ██║ ██║
* ██║ ██║██║ ██║ ██║
* ╚██████╔╝╚██████╗ ██║ ███████╗
* ╚═════╝ ╚═════╝ ╚═╝ ╚══════╝
* Geophysical Computational Tools & Library (GCTL)
*
* Copyright (c) 2022 Yi Zhang (yizhang-geo@zju.edu.cn)
*
* GCTL is distributed under a dual licensing scheme. You can redistribute
* it and/or modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation, either version 2
* of the License, or (at your option) any later version. You should have
* received a copy of the GNU Lesser General Public License along with this
* program. If not, see <http://www.gnu.org/licenses/>.
*
* If the terms and conditions of the LGPL v.2. would prevent you from using
* the GCTL, please consider the option to obtain a commercial license for a
* fee. These licenses are offered by the GCTL's original author. As a rule,
* licenses are provided "as-is", unlimited in time for a one time fee. Please
* send corresponding requests to: yizhang-geo@zju.edu.cn. Please do not forget
* to include some description of your company and the realm of its activities.
* Also add information on how to contact you by electronic and paper mail.
******************************************************/
#include <iostream>
#include <iomanip>
#include "../lib/optimization.h"
#include "gctl/core.h"
#include "gctl/algorithms.h"
using std::cout;
using std::endl;
using std::setw;
int main(int argc, char const *argv[])
{
gctl::matrix<double> A(4, 3);
for (int i = 0; i < A.row_size(); i++)
{
for (int j = 0; j < A.col_size(); j++)
{
A[i][j] = 3*(i+1) + j - 2;
}
}
A[3][1] = 1;
cout<<"A(" << A.row_size() << ", " << A.col_size() << ") = " <<endl;
A.show();
gctl::svd svdd;
svdd.decompose(A);
cout<<"U(" << svdd.U.row_size() << ", " << svdd.U.col_size() << ") = " <<endl;
svdd.U.show();
cout<<"S(" << svdd.S.size() << ") = " << endl;
svdd.S.show();
cout<<"V(" << svdd.V.row_size() << ", " << svdd.V.col_size() << ") = " <<endl;
svdd.V.show();
int sig_num = svdd.get_singular_number();
double tmp_d;
gctl::array<double> tmp(sig_num);
cout<<"U^T * S * V(" << A.row_size() << ", " << A.col_size() << ") = " <<endl;
for(int i=0;i<A.row_size();i++)
{
for (int k = 0; k < sig_num; k++)
{
tmp[k] = svdd.U[k][i] * svdd.S[k];
}
for(int j=0;j<A.col_size();j++)
{
tmp_d = 0.0;
for (int k = 0; k < sig_num; k++)
{
tmp_d += tmp[k] * svdd.V[k][j];
}
cout<<setw(12)<<tmp_d<<' ';
}
cout<<endl;
}
cout<<endl;
return 0;
}

78
src/optimization/ex5.cpp Normal file
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@ -0,0 +1,78 @@
/********************************************************
* ██████╗ ██████╗████████╗██╗
* ██╔════╝ ██╔════╝╚══██╔══╝██║
* ██║ ███╗██║ ██║ ██║
* ██║ ██║██║ ██║ ██║
* ╚██████╔╝╚██████╗ ██║ ███████╗
* ╚═════╝ ╚═════╝ ╚═╝ ╚══════╝
* Geophysical Computational Tools & Library (GCTL)
*
* Copyright (c) 2022 Yi Zhang (yizhang-geo@zju.edu.cn)
*
* GCTL is distributed under a dual licensing scheme. You can redistribute
* it and/or modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation, either version 2
* of the License, or (at your option) any later version. You should have
* received a copy of the GNU Lesser General Public License along with this
* program. If not, see <http://www.gnu.org/licenses/>.
*
* If the terms and conditions of the LGPL v.2. would prevent you from using
* the GCTL, please consider the option to obtain a commercial license for a
* fee. These licenses are offered by the GCTL's original author. As a rule,
* licenses are provided "as-is", unlimited in time for a one time fee. Please
* send corresponding requests to: yizhang-geo@zju.edu.cn. Please do not forget
* to include some description of your company and the realm of its activities.
* Also add information on how to contact you by electronic and paper mail.
******************************************************/
#include "../lib/optimization.h"
#include "gctl/core.h"
#include "gctl/algorithms.h"
int main(int argc, char const *argv[])
{
gctl::matrix<double> A(5, 5);
for (int i = 0; i < 5; i++)
{
for (int j = 0; j < 5; j++)
{
A[i][j] = 3*(i+1) + j - 2;
}
}
// 注意A要满秩
A[1][2] = 3.4;
A[4][1] = 2.1;
A[3][4] = 9.7;
A[2][3] = 2.7;
std::cout<<"A(5, 5) = " <<std::endl;
for(int i=0;i<5;i++){
for(int j=0;j<5;j++){
std::cout<<A[i][j]<<' ';
}
std::cout<<std::endl;
}
std::cout<<std::endl;
gctl::array<double> m(5, 0.5), x(5, 0.0);
gctl::array<double> B(5);
for (int i = 0; i < 5; i++)
{
B[i] = 0.0;
for (int j = 0; j < 5; j++)
{
B[i] += A[i][j] * m[j];
}
}
gctl::lu glu(A);
glu.decompose();
glu.solve(B, x);
for (size_t i = 0; i < 5; i++)
{
std::cout << m[i] << " " << x[i] << std::endl;
}
return 0;
}

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