There is also gdal_polygonize and the reverse gdal_rasterize. I've
had best success with these for large contiguous areas of the same
value, like land cover/class.
http://gdal.org/gdal_polygonize.html
http://gdal.org/gdal_rasterize.html
Regards, Eli
On Fri, Aug 10, 2012 at 3:58 AM, Zhengfan Li
+1 for this. I'm also working on a huge digitalizing project. Need some
handy tools.
I've been searching for vectorizing/digitalizing tools for some time. Was
about to post a similar mail to this list, but Silva got ahead of me. :-)
Thanks in advance.
Zhengfan Lin
On Aug 10, 2012 4:26 PM, "mrmms
You can use GRASS GIS[1] r.to.vect[2]
[1] http://grass.fbk.eu/
[2] http://grass.fbk.eu/grass64/manuals/html64_user/r.to.vect.html
On Fri, Aug 10, 2012 at 3:56 PM, mrmmsilva wrote:
> Hello,
>
> I need suggestions for software open source that allows me to convert a
> scanned map to vector format
A good starting point would be QGIS and GRASS.
Here's an article on "Trace vector contours from a scanned map" with
GRASS. You can QGIS via the GRASS plugin.
http://grass.osgeo.org/wiki/Trace_vector_contours_from_a_scanned_map
On Fri, Aug 10, 2012 at 6:26 PM, mrmmsilva wrote:
> Hello,
>
> I ne
Hello,
I need suggestions for software open source that allows me to convert a
scanned map to vector format.
thank you very much.
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