Xiaodong,
Have you tried the gdal_polygonize.py script (
http://www.gdal.org/gdal_polygonize.html)? Since your raster is classified,
this should work nicely.
On Fri, Feb 26, 2010 at 3:38 AM, Xiaodong Zhang wrote:
> Hi,
>
> Currently, I'm using gdal and ogr to convert a map after classification
>
Hi,
Currently, I'm using gdal and ogr to convert a map after classification
into a point shape file. Since the classification map typically consists
of zones, a polygon shape file would make more sense. I'm wondering if
anyone would know or share the idea of how to convert a map into a
polygo
