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张壹
2025-01-23 11:29:42 +08:00
parent 737b39fee3
commit 22f8a6aaa2
5 changed files with 241 additions and 0 deletions
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2
example/CMakeLists.txt
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@@ -13,6 +13,8 @@ macro(add_example name switch)
endif()
endmacro()
add_example(gnuplot_ex ON)
if(${GCTL_GRAPHIC_GMT})
add_example(JX_single_ex ON)
endif()

70
example/gnuplot_ex.cpp Normal file
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@@ -0,0 +1,70 @@
/********************************************************
* ██████╗ ██████╗████████╗██╗
* ██╔════╝ ██╔════╝╚══██╔══╝██║
* ██║ ███╗██║ ██║ ██║
* ██║ ██║██║ ██║ ██║
* ╚██████╔╝╚██████╗ ██║ ███████╗
* ╚═════╝ ╚═════╝ ╚═╝ ╚══════╝
* 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.h"
int main(int argc, char *argv[])
{
gctl::gnuplot gt;
//one line test
//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();
return 0;
}