2017-10-23 11:29:46 +08:00
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#!/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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plotgrad=0
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2018-05-04 02:47:17 +08:00
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clon=0
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2017-10-23 11:29:46 +08:00
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# 从命令行获取参数
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while getopts "hi:r:u:c:a:g" arg
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do
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case $arg in
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h)
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printf "simple global wide 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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2018-05-04 02:47:17 +08:00
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printf "usage: ${0##*/} -i<grid-data> [-r<xmin>/<xmax>/<ymin>/<ymax>] [-l<lon>] [-u<unit>] [-c<cpt-file>] [-a<x-label>,<y-label>] [-g]\n"
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2017-10-23 11:29:46 +08:00
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printf "%s\t%s\n" "-i" "input grid file"
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printf "%s\t%s\n" "-r" "data range. The template will ditect the input data range automaticly, the use of this option will overwrite the range."
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2018-05-04 02:47:17 +08:00
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printf "%s\t%s\n" "-l" "central longitude value of the plot, the default value is 0"
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2017-10-23 11:29:46 +08:00
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printf "%s\t%s\n" "-u" "data unit. The default is meter."
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printf "%s\t%s\n" "-c" "color cpt. The default is rainbow."
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printf "%s\t%s\n" "-a" "axis labels. The deafults are x (m) and y (m)."
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printf "%s\t%s\n" "-g" "use grdgradient. The default is false."
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exit 0;;
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i)
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data=$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=$OPTARG;;
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2018-05-04 02:47:17 +08:00
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l)
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clon=$OPTARG;;
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2017-10-23 11:29:46 +08:00
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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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?)
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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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else
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range=$(gmt_get_gridregion ${data})
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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=6.5p,Times-Roman,black \
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MAP_FRAME_PEN=thinnest,black \
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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_CROSS_SIZE_PRIMARY=2p \
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FONT_LABEL=6.5p,Times-Roman,black \
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MAP_FRAME_AXES=WESnZ \
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MAP_LABEL_OFFSET=2.5p
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gmt grd2cpt ${data} -C${color} -Z -D > $cptfile
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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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2018-05-04 02:47:17 +08:00
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gmt grdimage ${data} -R${range} -C${cptfile} -I${gradfile} -Bxag+l"${labels[0]}" -Bpya40g40+l"${labels[1]}" -JN${clon}/3i -K -P > $psfile
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2017-10-23 11:29:46 +08:00
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else
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2018-05-04 02:47:17 +08:00
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gmt grdimage ${data} -R${range} -C${cptfile} -Bxag+l"${labels[0]}" -Bpya40g40+l"${labels[1]}" -JN${clon}/3i -K -P > $psfile
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2017-10-23 11:29:46 +08:00
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fi
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2018-05-04 02:55:09 +08:00
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#-C${cptfile}+Uk 使用km（色标单位除1000
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#如果unit等于km则在cptfile后面添加+Uk
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if [[ ${unit} == 'km' ]]; then
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gmt psscale -Dx0.5i/-0.3i+w2i/0.07i+h -C${cptfile}+Uk -Bxa -By+l${unit} -O >> $psfile
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else
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gmt psscale -Dx0.5i/-0.3i+w2i/0.07i+h -C${cptfile} -Bxa -By+l${unit} -O >> $psfile
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fi
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2018-03-19 14:30:24 +08:00
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gmt psconvert $psfile -A -TEG -E300
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2017-10-23 11:29:46 +08:00
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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
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