# GMT 早期 --- cd pscoast gmt begin map <font color="chocolate">gmt coast -R-90/-70/0/20 -JM15c -B -Gchocolate</font> gmt end show  --- 換顏色<font color="cyan"> gmt coast -R-90/-70/0/20 -JM15c -B -cyan </font>  * 一樣的結果 gmt coast -R<font color="red">270/290</font>/0/20 -JM15c -Gcyan -B * -B : 四周經緯度與黑白框 --- gmtdefaults --- ## 加上 東西經 NW ### 記事本打開方法 gmtdefaults -D > gmt.conf 記事本打開改 FORMAT_GEO_MAP = ddd:mm:ss<font color="red">**F**</font> ss後面加一個F ### 另一種方法 gmtset FORMAT_GEO_MAP = ddd:mm:ss<font color="red">**F**</font> ### 最後執行 * gmt begin map * gmt coast -R270/290/0/20 -JM15c -Gcyan -B * gmt end show *  --- ## 描邊 > gmt coast -R270/290/0/20 -JM15c -Gcyan -B <font color="red">**-W1**</font> * ### **描邊 :** -W(粗細)  * -w1p  --- ## 美國地圖 國界 > gmt begin map1 > gmt coast -R-130/-70/24/52 -JB-100/35/33/45/6i -B -B+t"Conic projection" -N1/thicker -N2/thinnest -A500 -Ggray -Wthinnest > gmt end show  **中心點 :** 100/35 > gmtset MAP_GRID_CROSS_SIZE_PRIMARY = <font color="red">0.5p</font> > gmt coast -R-130/-70/24/52 -JB-100/35/33/45/6i -Bxg1 -Byg1 -B+t"Conic projection" -N1/thicker -N2/thinnest -A500 -Ggray -Wthinnest    0.5p 格線 5p 十字交叉  # GMT 20221025 gmtset MAP_GRID_CROSS_SIZE_PRIMARY = <font color="red">0p</font> 網格 改成5p為十字 pscoast -Rg -JG280/30/6i -Bag -Dc -A5000 -Gwhite -SDarkturquoise > GMT_tut_5.ps  pscoast -Rg -JG280/30/6i -Bag -Dc -A5000 -Gyellow -Sred > GMT_tut_5.ps  pscoast -Rg -JG280/30/6i -Bag -Dh -A5000 -Gyellow -Sred > GMT_tut_5.ps  --- pscoast -Rg -JG280/30/6i -Bag -Dc -A5000 -Gpurple -Sdarkturquoise -Wthinnest > GMT_tut_6.ps  pscoast -Rg -JG280/30/6i -Bag -Dc -A5000 -Gpurple -Sdarkturquoise -Wthin > GMT_tut_6.ps  pscoast -Rg -JKs180/9i -Bag -Dc -A5000 -Gchocolate -Darkturquoise -Wthinnest > GMT_tut_6.ps  Dc : Coarse 粗 Dh : high 高解析度 ---
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