[gdal-dev] Desktop App Map Server?

[Frank Warmerdam]

Brian Hone wrote:
> Hi Folks,
> 
> Sorry if this is a newbie question, but I've looked all over and can't
> find any good information.
> 
> I have a desktop app (wxGTK / C++ / OpenGL) on which I want to display
> all manner of geo-images, in all manner of projections, etc.  I have
> coded the ability to display simple NITF, etc. using GDAL, but I am
> constantly finding image formats or projection systems which I haven't
> supported.  I really want to have a data store with an API which looks
>  something like:
> 
> getMapLayers( area, layers, resolution )
> 
> o It looks like OGDI is built to solve this problem, but I can't find
> a 'howto'.
> o PostGIS + GDAL?
> o MapServer et al.? -  look good, but are more web focused.
> 
> Can anyone give me a good starting point?

Brian,

I am not clear on what you are looking for that GDAL doesn't already do.

In your getMapLayers() function above, are you suggesting that it is
returning the area, layers and resolution?  Are you wanting it to work
for feature datasources as well as raster data sources?  If you support
NITF via GDAL - is there some reason you don't automatically support the
rest of the GDAL raster formats?

What are you using for projections?  Normally GDAL+PROJ.4 allows you
to support a wide set of coordinate systems without having to do anything
special for particular projections.

I guess I'm not getting the dilemma.

Best regards,
-- 
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I set the clouds in motion - turn up   | Frank Warmerdam, warmerdam at pobox.com
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