118 lines
4.5 KiB
Bash
Executable File
118 lines
4.5 KiB
Bash
Executable File
#!/bin/bash
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# 包含GMT自带脚本文件 其中包含了一些有用的功能 比如获取网格文件的范围
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. gmt_shell_functions.sh
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#GMT显示平面数据脚本，输入文件为网格文件，没有包含网格化语句因为网格化过程中的情况多样化，建议在其他脚本中个别添加再调用此脚本
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# 初始化参数
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data='null'
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unit='m'
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color='rainbow'
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range='null'
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overwriteRange='null'
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overwrite=0
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labels=("longitude (degree)" "latitude (degree)")
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plot_para=(0 0 0 0)
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plotgrad=0
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nocpt=0
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# 从命令行获取参数
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while getopts "hi:r:u:c:a:gv:n" arg
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do
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case $arg in
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h)
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printf "simple regional data mapping using GMT script. The template accepts a grid (.nc .grid) file as input and outputs a .png and a .eps file. \
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For futher explanations, please look for GMT's manuscripts.\nAuthor: Yi Zhang (zhangyi.cugwuhan@gmail.com)\n"
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printf "usage: ${0##*/} -i<grid-data> [-r<xmin>/<xmax>/<ymin>/<ymax>] [-u<unit>] [-c<cpt-file>] [-a<x-label>,<y-label>] [-g] [-n]\n"
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printf "%s\t%s\n" "-i" "input grid file"
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printf "%s\t%s\n" "-r" "data range. The template will ditect the input data range automaticly, the use of this option will overwrite the range."
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printf "%s\t%s\n" "-u" "data unit. The default is meter."
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printf "%s\t%s\n" "-c" "color cpt. The default is rainbow. The script will use grd2cpt to recalculate the color scale file, use -n option to disable the use of grd2cpt."
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printf "%s\t%s\n" "-a" "axis labels. The deafults are x (m) and y (m)."
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printf "%s\t%s\n" "-g" "use grdgradient. The default is false."
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printf "%s\t%s\n" "-n" "disabele the use of grd2cpt."
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exit 0;;
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i)
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data=$OPTARG;;
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u)
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unit=$OPTARG;;
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c)
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color=$OPTARG;;
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r)
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overwrite=1
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overwriteRange=$OPTARG;;
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a)
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labels=(${OPTARG//,/ });;
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g)
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plotgrad=1;;
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n)
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nocpt=1;;
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?)
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printf "error: unknow argument\nuse -h option to see help information\n"
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exit 1;;
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esac
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done
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# 进行必要的参数检查
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if [[ $data == "null" ]]; then
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printf "error: no input file name\nuse -h option to see help information\n"
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exit 1
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else
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# 初始化临时文件名
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cptfile=user.cpt
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psfile=${data%.*}.ps
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jpgfile=${data%.*}.png
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# 获取网格范围
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if [[ $overwrite == 1 ]]; then
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range=${overwriteRange}
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# 别忘了这里要加上括号 才能初始化数组
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range_sp=(${range//// })
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# 注意bash并不支持浮点运算 所以需要使用bc命令 bc命令是一个计算数学表达式工具 参数是一个数学表达式字符串
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plot_para[0]=$(echo "${range_sp[0]} * 0.5 + ${range_sp[1]} * 0.5"|bc)
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plot_para[1]=$(echo "${range_sp[2]} * 0.5 + ${range_sp[3]} * 0.5"|bc)
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plot_para[2]=$(echo "${plot_para[1]} * 0.5 + ${range_sp[2]} * 0.5"|bc)
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plot_para[3]=$(echo "${plot_para[1]} * 0.5 + ${range_sp[3]} * 0.5"|bc)
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else
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range=$(gmt_get_gridregion ${data})
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range_sp=(${range//// })
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plot_para[0]=$(echo "${range_sp[0]} * 0.5 + ${range_sp[1]} * 0.5"|bc)
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plot_para[1]=$(echo "${range_sp[2]} * 0.5 + ${range_sp[3]} * 0.5"|bc)
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plot_para[2]=$(echo "${plot_para[1]} * 0.5 + ${range_sp[2]} * 0.5"|bc)
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plot_para[3]=$(echo "${plot_para[1]} * 0.5 + ${range_sp[3]} * 0.5"|bc)
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fi
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# 设置绘图参数
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gmt gmtset \
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FONT_ANNOT_PRIMARY=8p,Times-Roman,black \
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MAP_FRAME_PEN=thinnest,black \
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MAP_FRAME_WIDTH=1.5p \
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MAP_TICK_LENGTH_PRIMARY=1.5p/1p \
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MAP_TICK_PEN_PRIMARY=thinnest,black \
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MAP_TITLE_OFFSET=6.5p \
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MAP_GRID_PEN_PRIMARY=thinnest,grey,-- \
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FONT_LABEL=8p,Times-Roman,black \
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MAP_FRAME_AXES=WESnZ \
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COLOR_NAN=black \
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MAP_LABEL_OFFSET=2.5p
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if [[ $nocpt == 1 ]]; then
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gmt grd2cpt ${data} -R${range} -C${color} -Z -D -M > $cptfile
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else
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$cptfile = ${color}
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fi
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if [[ $plotgrad == 1 ]]; then
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gradfile=usergradient.nc
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gmt grdgradient ${data} -G${gradfile} -Nt -A0/45
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gmt grdimage ${data} -R${range} -C${cptfile} -I${gradfile} -Bxag+l"${labels[0]}" -Byag+l"${labels[1]}" -JL${plot_para[0]}/${plot_para[1]}/${plot_para[2]}/${plot_para[3]}/2.5i -K -P > $psfile
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else
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gmt grdimage ${data} -R${range} -C${cptfile} -Bxag+l"${labels[0]}" -Byag+l"${labels[1]}" -JL${plot_para[0]}/${plot_para[1]}/${plot_para[2]}/${plot_para[3]}/2.5i -K -P > $psfile
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fi
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#-C${cptfile}+Uk 使用km（色标单位除1000）
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gmt psscale -Dx0.3i/-0.3i+w1.85i/0.08i+h -C${cptfile} -Bxa -By+l${unit} -O >> $psfile
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gmt psconvert $psfile -A -TEG -E300
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# 删除临时文件 使用linux终端rm命令
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rm $cptfile $psfile gmt.history gmt.conf
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if [[ $plotgrad == 1 ]]; then
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rm $gradfile
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fi
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# 在终端显示图像 此命令需要imgcat.sh脚本和iTerm终端
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#imgcat $jpgfile
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# 打开图片文件 此命令使用MacOS终端open命令
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open $jpgfile
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fi |