You could always apply the elevation classification in a standard GIS like GRASS, and then save the color-mapped image and use that instead of the original DEM.
Cheers, Dylan On Mon, Apr 20, 2009 at 3:30 AM, leonidas <leonidas_lia...@yahoo.gr> wrote: > > How can I generate a colormap for my raster (geotiff) dem in a mapfile. I > have found a way but it's to difficult to generate so much classes and find > the appropriate colors one by one. > So my layer in mapfile look like this: > LAYER > NAME DEM > TYPE raster > STATUS default > > > DATA "E:\leonidas\dem.tif" > > PROCESSING "SCALE=-10,2000" > PROCESSING "SCALE_BUCKETS=2000" > > > > PROJECTION > 'proj=tmerc' > 'lat_0=0' > 'lon_0=24' > 'k=0.9996' > 'x_0=500000' > 'y_0=0' > 'ellps=GRS80' > 'towgs84=-199.87,74.79,246.62,0,0,0,0' > 'units=m' > 'no_defs' > '' > END > > > CLASSITEM "[pixel]" > > CLASS NAME '-1,5 - -1 m' EXPRESSION ( [pixel] >= -1.5 AND [pixel] < -1 > )COLOR 26 117 132 END > CLASS NAME '-1 - -0,5 m' EXPRESSION ( [pixel] >= -1 AND [pixel] < -0.5 > )COLOR 28 126 133 END > CLASS NAME '-0,5 - 0 m' EXPRESSION ( [pixel] >= -0.5 AND [pixel] < 0 ) > COLOR 29 135 134 END > CLASS NAME ' 0 - 0,5 m' EXPRESSION ( [pixel] >= 0 AND [pixel] < 0.5 ) > COLOR 31 144 135 END > CLASS NAME ' 0,5 - 1 m' EXPRESSION ( [pixel] >= 0.5 AND [pixel] < 1 ) > COLOR 33 152 136 END > CLASS NAME ' 1 - 1,5 m' EXPRESSION ( [pixel] >= 1 AND [pixel] < 1.5 ) > COLOR 35 158 137 END > CLASS NAME ' 1,5 - 2 m' EXPRESSION ( [pixel] >= 1.5 AND [pixel] < 2 ) > COLOR 38 163 128 END > CLASS NAME ' 2 - 2,5 m' EXPRESSION ( [pixel] >= 2 AND [pixel] < 2.5 ) > COLOR 44 170 116 END > CLASS NAME ' 2,5 - 3 m' EXPRESSION ( [pixel] >= 2.5 AND [pixel] < 3 ) > COLOR 49 176 104 END > CLASS NAME ' 3 - 3,5 m' EXPRESSION ( [pixel] >= 3 AND [pixel] < 3.5 ) > COLOR 54 183 92 END > CLASS NAME ' 3,5 - 4 m' EXPRESSION ( [pixel] >= 3.5 AND [pixel] < 4 ) > COLOR 60 190 80 END > CLASS NAME ' 4 - 4,5 m' EXPRESSION ( [pixel] >= 4 AND [pixel] < 4.5 ) > COLOR 66 196 68 END > CLASS NAME ' 4,5 - 5 m' EXPRESSION ( [pixel] >= 4.5 AND [pixel] < 5 ) > COLOR 72 203 56 END > CLASS NAME ' 5 - 6 m' EXPRESSION ( [pixel] >= 5 AND [pixel] < 6 ) > COLOR 77 209 44 END > CLASS NAME ' 6 - 7 m' EXPRESSION ( [pixel] >= 6 AND [pixel] < 7 ) > COLOR 83 216 31 END > CLASS NAME ' 7 - 8 m' EXPRESSION ( [pixel] >= 7 AND [pixel] < 8 ) > COLOR 88 222 20 END > CLASS NAME ' 8 - 9 m' EXPRESSION ( [pixel] >= 8 AND [pixel] < 9 ) > COLOR 94 229 8 END > END # of layer grid1 > > I have to do that until 2000m height. Is there any other options to classify > my dem's colors? > Thank you, Leonidas > -- > View this message in context: > http://n2.nabble.com/Dem-classification-tp2662869p2662869.html > Sent from the Mapserver - User mailing list archive at Nabble.com. > > _______________________________________________ > mapserver-users mailing list > mapserver-users@lists.osgeo.org > http://lists.osgeo.org/mailman/listinfo/mapserver-users > _______________________________________________ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users