Jonas Malmqvist wrote:
*Put together a mosaic of several shape files into one single shape file.
http://www.gdal.org/ogr/drv_shapefile.html
(see the example at the bottom of the page)
*Crop a rectangular area of the new shape file.
*Rasterize the new shapefile file (all shapes should be used) with a
specific resolution in x and y and specify which attribute column that
should be rasterized.
Create a blank raster file in the desired extents and resolution, e.g.
via gdal_translate, see
http://lists.osgeo.org/pipermail/gdal-dev/2008-February/016061.html
Finally: gdal_rasterize -a ...
see http://www.gdal.org/gdal_rasterize.html
Hermann
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