DEM shaded

HowTo|HowTo

GDAL tools

 * gdaldem


 * Linfiniti


 * Frank Warmerdam

Merge several .asc tiles into one file liguria.tif

Info about the DEM liguria.tif

Driver: GTiff/GeoTIFF Files: liguria.tif Size is 26255, 10505 Coordinate System is `' PROJ.4 string is: '' Origin = (337500.000000000000000,4950050.000000000000000) Pixel Size = (10.000000000000000,-10.000000000000000) Image Structure Metadata: INTERLEAVE=BAND Corner Coordinates: Upper Left (  337500.000, 4950050.000) Lower Left (  337500.000, 4845000.000) Upper Right ( 600050.000, 4950050.000) Lower Right ( 600050.000, 4845000.000) Center     (  468775.000, 4897525.000) Band 1 Block=26255x1 Type=Float32, ColorInterp=Gray Computed Min/Max=-12.376,3286.430 Minimum=-12.376, Maximum=3286.430, Mean=307.242, StdDev=451.426 Metadata: STATISTICS_MAXIMUM=3286.4299316406 STATISTICS_MEAN=307.24195109357 STATISTICS_MINIMUM=-12.376350402832 STATISTICS_STDDEV=451.42561190941

Convert from Arc/Info ASCII Grid in GeoTiff format

Warping the DEM with the vector contour of the liguria region

Create a color palette file color_ ramp.txt for the terrain

nv 0:0:0:0 0% 0:230:0 20% 0:160:0 35% 50:130:0 55% 120:100:30 75% 120:130:40 90% 170:160:50 100% 255:255:100

Generate the terrain map

Generate the hillshade map

Generate the slope shading map

Create a color palette file slope_ramp.txt for the slope

0 255 255 255 90 0 0 0

Merge the files using the Frank Warmerdam’s script