[gdal-dev] gdal_rasterize 1.8.0 options

[Marius Jigmond]

On Sat, 2011-02-05 at 00:06 +0100, Even Rouault wrote: 
> Le vendredi 04 février 2011 20:25:43, Marius Jigmond a écrit :
> > Hi Everyone,
> > 
> > Some of the options (I didn't test all) introduced with version 1.8.0
> > seem to behave strangely. Here's what I'm doing:
> > 1. gdal_rasterize -burn 0 -i -l mask mask.shp sample.tif
> > works fine but I get the following warning:
> > Warning : the output raster dataset and the input vector layer do not
> > have the same SRS.
> > Results might be incorrect (no on-the-fly reprojection of input data).
> > even though both inputs use the same projection, EPSG:3844.
> 
> Unrelated with GDAL 1.8.0. The issue was that the transformation between OGC 
> WKT and ESRI WKT didn't handle well the Oblique Stereographic projection. 
> Fixed in trunk in http://trac.osgeo.org/gdal/changeset/21627

Thanks.

> 
> > 
> > 2. gdal_rasterize -burn 0 -i -a_srs EPSG:3844 -l mask mask.shp
> > sample.tif
> > fails with: '-tr xres yes' or '-ts xsize ysize' is required.
> > 
> > 3. gdal_rasterize -burn 0 -i -a_nodata 0 -l mask mask.shp sample.tif
> > fails with: '-tr xres yes' or '-ts xsize ysize' is required.
> > 
> > >From http://www.gdal.org/gdal_rasterize.html it doesn't seem that -a_srs
> > or -a_nodata would require -tr or -ts. Am I doing something wrong?
> 
> When those 2 new options are used, they imply creating a new dataset. So they 
> actually need to be used with -tr or -ts option.

Thanks for the clarification as it's not apparent from the web page.
Would have loved the -a_nodata to be available for existing datasets.

> 
> > 
> > -marius
> > 
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