关于使用墨卡托投影绘制不包含极地地区图时报错

Q&A
1

我是一个GMT初学者；
echo -170 40 > line40.dat
echo 0 40 >> line40.dat
echo 0 40 > line401.dat
echo 170 40 >> line401.dat

echo 0 -40 > line-40.dat
echo -170 -40 >> line-40.dat
echo 0 -40 > line-401.dat
echo 170 -40 >> line-401.dat

echo -170 -40 > line-170.dat
echo -170 40 >> line-170.dat

echo 170 -40 > line170.dat
echo 170 40 >> line170.dat

gmt begin world pdf
gmt set MAP_GRID_PEN_PRIMARY 0.25p,gray,2_2
gmt set PS_CHAR_ENCODING Standard+
gmt coast -JM15c -R-180/180/-70/70 -Ba60f20 -G244/243/239 -S167/194/223 --FONT_ANNOT_PRIMARY=10p

gmt plot 7.0-7.5.dat -Sc0.2c -Gorange -W1p,black -l"7.0≤eq<7.5"
gmt plot 7.5-8.0.dat -Sc0.3c -Gred -W1p,black -l"7.5≤eq<8.0"
gmt plot 8.0out.dat -Sc0.4c -Gorange -W1p,black"eq≥8.0"
gmt plot line40.dat -W0.7p,red,- -A  -l"study region"
gmt plot line401.dat -W0.7p,red,- -A
gmt plot line-40.dat -W0.7p,red,- -A
gmt plot line-401.dat -W0.7p,red,- -A
gmt plot line-170.dat -W0.7p,red,- -A
gmt plot line170.dat -W0.7p,red,- -A

gmt end show
这是我的代码，在我运行的时候出现了下边的报错，多次修改仍然报同样的错误，有朋友可以帮我分析一下问题吗
E:\gkd\GMT\gmt6>world.bat
coast [ERROR]: Option -R: Cannot include south/north poles with Mercator projection!
coast [ERROR]: General map projection error
plot [ERROR]: Option -R: Cannot include south/north poles with Mercator projection!
plot [ERROR]: General map projection error
plot [ERROR]: Option -R: Cannot include south/north poles with Mercator projection!
plot [ERROR]: General map projection error
plot [ERROR]: Option -R: Cannot include south/north poles with Mercator projection!
plot [ERROR]: General map projection error
plot [ERROR]: Option -R: Cannot include south/north poles with Mercator projection!
plot [ERROR]: General map projection error
plot [ERROR]: Option -R: Cannot include south/north poles with Mercator projection!
plot [ERROR]: General map projection error
plot [ERROR]: Option -R: Cannot include south/north poles with Mercator projection!
plot [ERROR]: General map projection error
plot [ERROR]: Option -R: Cannot include south/north poles with Mercator projection!
plot [ERROR]: General map projection error
plot [ERROR]: Option -R: Cannot include south/north poles with Mercator projection!
plot [ERROR]: General map projection error
plot [ERROR]: Option -R: Cannot include south/north poles with Mercator projection!
plot [ERROR]: General map projection error

2

Not reproducible. Maybe bad characters in a Windows batch file? Missing a -l in one of the commands.