[Gdal-dev] vector to raster conversion

[Roger James]

I have tried a number of different algorithms for DEM production and I
find the one I personally like best is the RST algorithm available in
GRASS. Two other popular algorithms are IDW and Kriging, you can find
both in Grass.

Roger

> -----Original Message-----
> From: gdal-dev-admin at remotesensing.org [mailto:gdal-dev-
> admin at remotesensing.org] On Behalf Of Frank Warmerdam
> Sent: 27 August 2003 17:32
> To: gdal-dev at remotesensing.org
> Subject: Re: [Gdal-dev] vector to raster conversion
> 
> Brian Marchand wrote:
> > Hello,
> >
> >
> >
> > I know there are many GIS savvy people on this list and I was
wondering
> > if anyone knew of any vector to raster conversion code that is
floating
> > around. My interest is in converting elevation data stored in shape
> > files to any elevation raster format supported by GDAL.
> 
> Brian,
> 
> I assume what you have is contour and possibly breakline information?
Or
> is it point elevations?  Building a decent raster DEM from contours
and
> breakline information is not a trivial process.  I worked on some
> algorithms
> for it at PCI but I am not aware of anything directly available built
on
> GDAL.
> You could use commercial software, like PCI.  I also think there may
be a
> decent contour to raster program in GRASS but I am not sure.
> 
> If you just have point data, any point interpolator would likely do,
such
> as
> the one in OpenEV mentioned by Tyler.
> 
> MapServer is good for a variety of rasterization issues, but it isn't
an
> interpolator.
> 
> 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    | Geospatial Programmer for
Rent
> 
> 
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