gmt

Process and visualize geographic and Cartesian data with maps and plots

brewmacoslinux

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Tools for manipulating and plotting geographic and Cartesian data

gmtgmtswitch

Create a basic map of a geographic region$ gmt coast -R-180/180/-90/90 -JM6i -Bafg -Glightgray -Slightblue -P > map.ps

Plot data points from a file on a map$ gmt plot data.txt -R0/10/0/10 -JX4i -B1 -Sc0.2c -Gred > plot.ps

Create a color-coded grid visualization$ gmt grdimage data.grd -R0/10/0/10 -JX4i -Cjet > grid.ps