[gdal-dev] create a png file

weixj2003ld weixj2003ld at 163.com
Tue Apr 6 00:11:16 EDT 2010

I read data from a DEM file, and want to create a .png .Now I have read data, but I do not know how to create a png file that contains the height map value of each point from the DEM file.
Thk u.
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