Color pixels with two palettes, one for land the other for sea.
1.1
LandSeaCol(IZ, coastmap, PROJ, calcol =NULL)
Arguments
IZ: list of x, y, z suitable for plotting with image or contour.
coastmap: coastal map from GEOmap
PROJ: projection list
calcol: color map for the land
Details
The program uses closed polygons in the map list to separate the pixels into land versus sea. Sea is colored with a palette of blues, land is colored according to topographic color scheme extracted from palettes similar to GMT palettes.
All map and pixel coordinates are projected with the same projection parameters. calculations are done in XY coordinates.