[Gdal-dev] gdal_rasterize for World Vector Shoreline (WVS) data
Frank Warmerdam
warmerdam at pobox.com
Tue Jan 23 18:40:10 EST 2007
John Mitchell wrote:
> Hi,
>
> I would like to try gdal_rasterize to convert World Vector Shoreline
> (WVS) data into raster data. I am hoping that this will speed up
> performance when viewing this data within MapServer. In the
> documentation is says "Currently gdal_rasterize cannot create new output
> files though that may be added eventually". I don't want to merge WVS
> with an existing raster layer, but have its own layer. How can I create
> a blank geotiff that I can use as output for this rasterized WVS data?
John,
This may seem odd, but I've often created a blank file to work in
with gdal_translate from some existing file. I use "-scale 0 100 0 0.01"
to essentially force all the pixels to zero and switches like -a_ullr
and -a_srs to set the bounds and coordinate system.
Best regards,
--
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I set the clouds in motion - turn up | Frank Warmerdam, warmerdam at pobox.com
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and watch the world go round - Rush | President OSGeo, http://osgeo.org
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