[OSGeo-Discuss] Open Source Raster Tracing - What Is Available?

[Doug_Newcomb at fws.gov]

I've not had a chance to use these, but these do what you want?

http://grass.itc.it/grass64/manuals/html64_user/r.thin.html
http://grass.itc.it/grass64/manuals/html64_user/r.to.vect.html

Not spatial, but may also be of interest.

http://wiki.inkscape.org/wiki/index.php/Tools
http://wiki.inkscape.org/wiki/index.php/Potrace

Doug Newcomb
USFWS
Raleigh, NC
919-856-4520 ext. 14 doug_newcomb at fws.gov
---------------------------------------------------------------------------------------------------------

The opinions I express are my own and are not representative of the
official policy of the U.S.Fish and Wildlife Service or Dept. of the
Interior.   Life is too short for undocumented, proprietary data formats.


                                                                           
             "Landon Blake"                                                
             <lblake at ksninc.co                                             
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             02/04/2010 02:40          [OSGeo-Discuss] Open Source Raster  
             PM                        Tracing - What Is Available?        
                                                                           
                                                                           
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Is anyone aware of a raster tracing tool for geospatial users released
under an open source license? I’m looking for something similar to:

http://www.vextrasoft.com/vextractor.htm

I found the Autotrace program (http://autotrace.sourceforge.net/), but it
seems to be a little more limited, and not geared to the GIS user.
Vextractor allows you to georeference your tracing output and supports
export of the traced vectors to SHP and DXF.

The price for a single license of Vextractor isn’t bad ($99 US), but I’d
love to find a similar open source project. I’ve thought about trying to
write something up using JTS, but I know it would be a very challenging
project. I’d like to know if any of you have worked on open source projects
in this area.

Thanks for any info.

Landon








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