[gdal-dev] Converting contour lines (Shape files) into DEM
even.rouault at mines-paris.org
Sat Mar 27 18:07:24 EDT 2010
Here is a process you could try:
1) Prepare an output GDAL file for gdal_rasterize.
You can take care inspiration of
Modify it to create 1 band (instead of 4) and for step 3) to work, you should
take care of setting a nodata value on the output file and initialize the
raster with it:
(if you can compile GDAL from source, you can avoid this step by grabbing the
latest sources that have an enhanced version of gdal_rasterize, directly able
to create the output file . See http://trac.osgeo.org/gdal/ticket/3505)
2) Use gdal_rasterize to burn the contour lines.
3) Fill the holes (the nodata values) with gdal_fillnodata.py.
Now, the result should be usable with gdaldem.
Le Saturday 27 March 2010 19:09:06 Kishore Reddy, vous avez écrit :
> Hi everyone,
> I am planing to use gdaldem to create relief shaded maps. But the
> problem is gdaldem takes only DEM files as input. Unfortunately I have
> contour lines (in the form of Shape files). So is there any way
> (command line) to convert these shape files into DEM files?
> gdal-dev mailing list
> gdal-dev at lists.osgeo.org
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