[Gdal-dev] gdal_rasterize - can't make it work

[Maciek Sieczka]

On Thu, 25 May 2006 09:48:50 -0700
Christopher Barker <Chris.Barker at noaa.gov> wrote:

> > Maciek Sieczka wrote:
> >> But nothing happens - when the rast.tif is displayed it looks
> >> untouched. 
> 
> Frank explained this, but I thought I'd comment. Drawing a raster
> image from Vector data can be a very complex process. In particular,
> shape files specify the shapes, but don't specify anything about how
> they should be rendered. Perhaps it's useful to have a some simple
> defaults to do this, but as a rule, if GDAL goes down that path,
> there will be an almost endless list of new features constantly
> requested, and I don't think that is (or should be) the goal of GDAL.

You are right. I was only looking for a quick substitute to Grass
v.to.rast module, as it is buggy:
http://intevation.de/rt/webrt?serial_num=4488

I agree that vector to raster conversion is propably not GDAL is
supposed to be designed for, but as there was a chance, I tried it.

> There are a lot of tools for rendering maps out there (most using 
> GDAL!). It's probably better to use one of them. One that does a 
> particularly impressive job is Mapnik:
> 
> http://mapnik.org/

I don't want to render my lines shapefile on a display in any fancy way.
I want to properly turn into a raster (grid), at a given resolution, for
further raster analysis within Grass.

Maciek

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