[Qgis-developer] [gdal-dev] Open source API to convert raster to polygons?

Ricardo Scachetti Pereira ricardo at tdwg.org
Thu Jan 10 06:42:33 EST 2008

    Sorry Joaquim,

    You are right. I haven't been precise enough.

    What I really need is some API or software library (preferably in C 
or C++) that I could use to convert ESRI Arc/Info Grids (the binary 
kind) to a Shapefile of polygons. If a library isn't available, a 
command line utility that I can call from C/C++ would suffice.

    I hope this clarify things a bit.



Joaquim Luis wrote:
>> Ricardo Scachetti Pereira kirjoitti:
>>>    Hi all,
>>>      Does anyone know of any open source geoprocessing APIs that I 
>>> can use to convert raster maps into polygons (as a shapefile or SQL 
>>> for PostGIS)? Does QGIS do that?
> Hi,
> I am sorry but I have some difficulties in understanding this discussion.
> What is a raster to polygon conversion?

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