From b442ade8b05b6d6bf4121b6302b2d555089d9b3d Mon Sep 17 00:00:00 2001
From: yizhang <zhangyiss@icloud.com>
Date: Tue, 3 Apr 2018 11:05:44 -0700
Subject: [PATCH] add -t and -v options

---
 gmtsph-regional.sh | 22 +++++++++++++++-------
 1 file changed, 15 insertions(+), 7 deletions(-)

diff --git a/gmtsph-regional.sh b/gmtsph-regional.sh
index a83f090..0a99a52 100755
--- a/gmtsph-regional.sh
+++ b/gmtsph-regional.sh
@@ -15,22 +15,26 @@ plotgrad=0
 nocpt=0
 inverseCPT=0
 coastline=0
+axistick=("a" "a") #横纵坐标轴间隔 a表示自动
+bartick="a"
 # 从命令行获取参数
-while getopts "hi:r:u:c:a:gv:npb" arg
+while getopts "hi:r:u:c:a:t:v:gnpb" arg
 do
 	case $arg in
 		h)
 			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. \
 For futher explanations, please look for GMT's manuscripts.\nAuthor: Yi Zhang (zhangyi.cugwuhan@gmail.com)\n" 
-			printf "usage: ${0##*/} -i<grid-data> [-r<xmin>/<xmax>/<ymin>/<ymax>] [-u<unit>] [-c<cpt-file>] [-a<x-label>,<y-label>] [-b] [-g] [-n]\n"
+			printf "usage: ${0##*/} -i<grid-data> [-r<xmin>/<xmax>/<ymin>/<ymax>] [-u<unit>] [-c<cpt-file>] [-a<x-label>,<y-label>] [-t<x-tick>,<y-tick>] [-v<c-tick>] [-b] [-g] [-n] [-p]\n"
 			printf "%s\t%s\n" "-i" "input grid file"
-			printf "%s\t%s\n" "-r" "data range. The template will ditect the input data range automaticly, the use of this option will overwrite the range."
+			printf "%s\t%s\n" "-r" "data range. The template will detect the input data range automatically, the use of this option will overwrite the range."
 			printf "%s\t%s\n" "-u" "data unit. The default is meter."
 			printf "%s\t%s\n" "-c" "color cpt. The default is rainbow. The script will use grd2cpt to recalculate the color scale file, use -n option to disable the use of grd2cpt."
 			printf "%s\t%s\n" "-a" "axis labels. The deafults are x (m) and y (m)."
+			printf "%s\t%s\n" "-t" "intervals of axis's labels. the script will set the intervals automatically if -t option is not set."
+			printf "%s\t%s\n" "-v" "intervals of color bar's labels. the script will set the intervals automatically if -v option is not set."
 			printf "%s\t%s\n" "-b" "draw coast line."
 			printf "%s\t%s\n" "-g" "use grdgradient. The default is false."
-			printf "%s\t%s\n" "-n" "disabele the use of grd2cpt."
+			printf "%s\t%s\n" "-n" "disable the use of grd2cpt."
 			printf "%s\t%s\n" "-p" "inverse the color pattern specified by the -c option, no use if -n option is implemented."
 			exit 0;;
 		i)
@@ -44,6 +48,10 @@ For futher explanations, please look for GMT's manuscripts.\nAuthor: Yi Zhang (z
 			overwriteRange=$OPTARG;;
 		a)
 			labels=(${OPTARG//,/ });;
+		t)
+			axistick=(${OPTARG//,/ });;
+		v)
+			bartick=$OPTARG;;
 		b)
 			coastline=1;;
 		g)
@@ -111,9 +119,9 @@ else
 	if [[ $plotgrad == 1 ]]; then
 		gradfile=usergradient.nc
 		gmt grdgradient ${data} -G${gradfile} -Nt -A0/45
-		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]}/2i -K -P > $psfile
+		gmt grdimage ${data} -R${range} -C${cptfile} -I${gradfile} -Bx${axistick[0]}g+l"${labels[0]}" -By${axistick[1]}g+l"${labels[1]}" -JL${plot_para[0]}/${plot_para[1]}/${plot_para[2]}/${plot_para[3]}/2i -K -P > $psfile
 	else
-		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]}/2i -K -P > $psfile
+		gmt grdimage ${data} -R${range} -C${cptfile} -Bx${axistick[0]}g+l"${labels[0]}" -By${axistick[1]}g+l"${labels[1]}" -JL${plot_para[0]}/${plot_para[1]}/${plot_para[2]}/${plot_para[3]}/2i -K -P > $psfile
 	fi
 
 	if [[ $coastline == 1 ]]; then
@@ -121,7 +129,7 @@ else
 	fi
 
 	#-C${cptfile}+Uk 使用km（色标单位除1000）
-	gmt psscale -Dx0.4i/-0.3i+w1.2i/0.06i+h -C${cptfile} -Bxa -By+l${unit} -O >> $psfile
+	gmt psscale -Dx0.4i/-0.3i+w1.2i/0.06i+h -C${cptfile} -Bx${bartick} -By+l${unit} -O >> $psfile
 	gmt psconvert $psfile -A -TEG -E300
 	# 删除临时文件 使用linux终端rm命令
 	rm $psfile gmt.history gmt.conf