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

[Benjamin Ducke]

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" <sstein at geo.uzh.ch>
To: "OSGeo Discussions" <discuss at lists.osgeo.org>
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
> 
>  
> 
>  
> 
> 
> 
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