Take a look at Potrace. Conveniently, gvSIG's Remote Sensing Extension has integrated Potrace and contour line extraction support. It also handles the grayscale conversion job quite nicely, all in one nifty wizard interface and straight on your GIS raster layers.
If you don't want to go through all the trouble of downloading gvSIG and the Remote Sensing Extension and installing them separately, you can use our all-in-one installer package here: http://www.oadigital.net/software/gvsigoade/gvsigoade2010beta Cheers, Ben ----- Original Message ----- From: "Stefan Steiniger" <[email protected]> To: "OSGeo Discussions" <[email protected]> Sent: Thursday, February 4, 2010 8:50:03 PM GMT +01:00 Amsterdam / Berlin / Bern / Rome / Stockholm / Vienna Subject: Re: [OSGeo-Discuss] Open Source Raster Tracing - What Is Available? Sextante has a raster to vector conversion function - that can help in certain instances. though - depends on the data you have and if there are gaps to bridge. Landon Blake wrote: > 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 > > > > > > > > *Warning: > *Information provided via electronic media is not guaranteed against > defects including translation and transmission errors. If the reader is > not the intended recipient, you are hereby notified that any > dissemination, distribution or copying of this communication is strictly > prohibited. If you have received this information in error, please > notify the sender immediately. > > > ------------------------------------------------------------------------ > > _______________________________________________ > Discuss mailing list > [email protected] > http://lists.osgeo.org/mailman/listinfo/discuss _______________________________________________ Discuss mailing list [email protected] http://lists.osgeo.org/mailman/listinfo/discuss Files attached to this email may be in ISO 26300 format (OASIS Open Document Format). If you have difficulty opening them, please visit http://iso26300.info for more information. ------ Files attached to this email may be in ISO 26300 format (OASIS Open Document Format). If you have difficulty opening them, please visit http://iso26300.info for more information. _______________________________________________ Discuss mailing list [email protected] http://lists.osgeo.org/mailman/listinfo/discuss
