利用GMT的點(X,Y)如果有Z值,如何畫成contour/Use coordinate to plot the contour map by coordinate point and z value./Pakai detik koordinat melukis suatu peta contour sama data nilai Z.

繪製contour,利用blockmean, blockmode等,triangulate, nearneighbor以及 surface 等功能. Drawing contour, by using blockmean, blockmode and triangulate, nearneighbor.
Melukis Peta contour, sama dengan fungsi blockmean, blockmode, triangulate, nearneigbor dan lain-lain

 

分別由X,Y,Z的資料,Z資料可以為深度,高度等等 

XYZ data represented the coordinate (X,Y,Z)

Data XYZ bermakna detik koordinat (X,Y,Z)

 沒有加入色調的等深線圖
no color bathymetry map
Peta dalam dasar laut  tidak berwarna

加入等深線色調的圖
with color pallett
Peta yang ber warna

 

Triangulate

不連續色表
 Uncontinuous color pallett
Warna tidak berterusan

程式碼/script/skript

blockmean petroleum_game.csv -I0.1 -R0/20/0/30 -V > nf_filt.dat
#triangulate petroleum_game.csv -Gpetroleum_game1.grd -I0.2 -R0/20/0/30 -V
#nearneighbor petroleum_game.csv -Gpetroleum_game1.grd -I0.2 -N2 -R0/20/0/30 -S50 -V
surface nf_filt.dat -Gpetroleum_game1.grd -I0.1 -R0/20/0/30 -S25 -T0.2 -V
makecpt -Crainbow -T-6900/-4500/100 -Z -V > nf.cpt
psbasemap -JX4/6i -R0/20/0/30 -Y-3i -B10f1g1nwSE -V -K > Zuolan_formation.ps
grdimage petroleum_game1.grd.grd -JX4i/6i -R -Cnf.cpt -Inf_shade.grd -V -K -O >> Zuolan_formation.ps
psxy petroleum_game.csv -Sc0.05 -Gblack -R -J -V -K -O >> Zuolan_formation.ps
grdcontour petroleum_game1.grd -JX4/6i -B10f1g1nwSE -R -C50 -A200 -V -K -O >> Zuolan_formation.ps
pause

也可嘗試利用triangulate 或nearneighbor, blockmean 也可改成 blockmode, blockmedian等.
You can try another function like triangulate, nearneighbor, blockmean, blockmode, blockmedian
Anda boleh menggunakan fungsi yang lain bagi memuaskan peta yang lukis. Seperti triangulate, nearneighbor, blockmean, blockmode, blockmedian