[Gdal-dev] Transfer the shp file(polygon) into raster data

Frank Warmerdam warmerdam at pobox.com
Mon Feb 26 10:23:38 EST 2007

Lijian Shi wrote:
> Hi,
> I am using gdal_rasterize to transfer the shp file(polygon) into raster 
> data but could not get the right result. The gdal_rasterize can not 
> create the raster data yet so I use a ‘geotiff’ file which contains the 
> area of shp file. Am I right? Is there any other program with c or c++ 
> to do this work? I tried to write the code by myself according to the 
> code of gdal_raterize but it seems to be difficult to me.


As you note, currently gdal_rasterize does not support creating the output
file, so using an existing geotiff of the target region is a reasonable

> Otherwise, can I do this job with MapServer? If yes, could you please 
> tell me the procedure roughly?

MapServer could do this if you are trying to produce output results with
1 or 3 8bit bands.  For instance if the result you seek is essentially
presentable images, as opposed to scientific rasterization outside the 8bit

Best regards,
I set the clouds in motion - turn up   | Frank Warmerdam, warmerdam at pobox.com
light and sound - activate the windows | http://pobox.com/~warmerdam
and watch the world go round - Rush    | President OSGeo, http://osgeo.org

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