[Freegis-list] Library

[Frank Warmerdam]

Andreas Ögren wrote:

> I'm writing a 3D terrain visualization tool that reads height,
> terrain-class and vector data, and creates a 3D representation of the
> data. I need to add support for several common file formats for this
> kind of data. Can anyone recommend a programming library that has
> support for reading/writing files such as, DEM, GeoTIFF, Shape, etc that
> is free to use?


Andreas,

The GDAL library includes read (and sometimes write) support for a variety
of formats, including GeoTIFF, and DTED; however, currently it does not
included USGS ASCII DEM format.  I started adding read access but got
distracted.

Within the GDAL source tree there is the OGR Simple Features library which
supports a variety of vector formats, including Shape, and Mapinfo formats.

I would encourage you to use these libraries available at:

   http://www.remotesensing.org/gdal


Amoung others, they are used by the OpenEV and VTBuilder applications which

have loosely similar goals.  Please free to contact me for additional
details.

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    | Geospatial Programmer for Rent