From 33f4662eff32c8e2d91d5fd030c6b00adc4bc96d Mon Sep 17 00:00:00 2001
From: pi <zhangyiss@icloud.com>
Date: Thu, 15 Nov 2018 14:51:51 -0800
Subject: [PATCH] fixed a bug of -a option

---
 gmtxy-image.sh | 30 +++++++++++++++++++-----------
 1 file changed, 19 insertions(+), 11 deletions(-)

diff --git a/gmtxy-image.sh b/gmtxy-image.sh
index 9e80eac..3d061df 100755
--- a/gmtxy-image.sh
+++ b/gmtxy-image.sh
@@ -28,7 +28,7 @@ For futher explanations, please look for GMT's manuscripts.\nAuthor: Yi Zhang (z
 			printf "%s\t%s\n" "-c" "color cpt. The default is rainbow."
 			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" "-a" "axis labels. The deafults are x (m) and y (m)."
+			printf "%s\t%s\n" "-a" "axis labels separated by semicolons. The deafults are x (m) and y (m)."
 			printf "%s\t%s\n" "-g" "use grdgradient. The default is false."
 			printf "%s\t%s\n" "-G" "provide a different input grid data for the use of grdgradient. This should be used with the '-g' option at the same time"
 			exit 0;;
@@ -46,7 +46,10 @@ For futher explanations, please look for GMT's manuscripts.\nAuthor: Yi Zhang (z
 			overwrite=1
 			overwriteRange=$OPTARG;;
 		a)
-			labels=(${OPTARG//,/ });;
+			OLD_IFS="${IFS}"
+			IFS=";"
+			labels=(${OPTARG})
+			IFS="${OLD_IFS}";;
 		g)
 			plotgrad=1;;
 		G)
@@ -71,16 +74,21 @@ else
 	else
 		range=$(gmt_get_gridregion ${data})
 	fi
+	#根据横纵坐标的范围计算图片的长和高 我们默认图片宽度为1.5i
+	range_coor=(${range//// })
+	pic_height=`echo "scale=4; 2.0 * (${range_coor[3]}-${range_coor[2]})/(${range_coor[1]}-${range_coor[0]})"|bc`
 	# 设置绘图参数
 	gmt gmtset \
-	FONT_ANNOT_PRIMARY=7p,Times-Roman,black \
-	MAP_FRAME_PEN=thin,black \
+	FONT_ANNOT_PRIMARY=7.5p,Times-Roman,black \
+	MAP_FRAME_PEN=thinnest,black \
+	MAP_GRID_PEN_PRIMARY=thinnest,black \
+	MAP_TICK_PEN_PRIMARY=thinnest,black \
 	MAP_TICK_LENGTH_PRIMARY=1p/0.5p \
-	MAP_TITLE_OFFSET=7p \
+	MAP_TITLE_OFFSET=7.5p \
 	MAP_GRID_CROSS_SIZE_PRIMARY=2p \
-	FONT_LABEL=7p,Times-Roman,black \
+	FONT_LABEL=7.5p,Times-Roman,black \
 	MAP_FRAME_AXES=WeSnZ \
-	MAP_LABEL_OFFSET=2p \
+	MAP_LABEL_OFFSET=2.5p \
 	MAP_ANNOT_OFFSET_PRIMARY=2.5p
 
 	gmt grd2cpt ${data} -C${color} -R${range} -Z -D > $cptfile
@@ -91,17 +99,17 @@ else
 		else
 			gmt grdgradient ${gridData} -G${gradfile} -Nt -A0/45
 		fi
-		gmt grdimage ${data} -R${range} -C${cptfile} -I${gradfile} -Bx${axistick[0]}g+l"${labels[0]}" -By${axistick[1]}g+l"${labels[1]}" -JX1.5i -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]}" -JX2.0i/${pic_height}i -K -P > $psfile
 	else
-		gmt grdimage ${data} -R${range} -C${cptfile} -Bx${axistick[0]}g+l"${labels[0]}" -By${axistick[1]}g+l"${labels[1]}" -JX1.5i -K -P > $psfile
+		gmt grdimage ${data} -R${range} -C${cptfile} -Bx${axistick[0]}g+l"${labels[0]}" -By${axistick[1]}g+l"${labels[1]}" -JX2.0i/${pic_height}i -K -P > $psfile
 	fi
 
 	#-C${cptfile}+Uk 使用km（色标单位除1000
 	#如果unit等于km则在cptfile后面添加+Uk
 	if [[ ${unit} == 'km+Uk' ]]; then
-		gmt psscale -Dx1.6i/0.1i+w1.2i/0.07i -C${cptfile}+Uk -Bx${bartick} -By+l${unit} -O >> $psfile
+		gmt psscale -Dx0.24i/-0.32i+w1.5i/0.05i+h -C${cptfile}+Uk -Bx${bartick} -By+l${unit} -O >> $psfile
 	else
-		gmt psscale -Dx1.6i/0.1i+w1.2i/0.07i -C${cptfile} -Bx${bartick} -By+l${unit} -O >> $psfile
+		gmt psscale -Dx0.24i/-0.32i+w1.5i/0.05i+h -C${cptfile} -Bx${bartick} -By+l${unit} -O >> $psfile
 	fi
 	gmt psconvert $psfile -A -TEG -E300
 	# 删除临时文件 使用linux终端rm命令