Re: [OSGeo-Discuss] Open Source Raster Tracing - What Is Available?
Line Trace Plus was a very powerful raster to vector conversion program used by the SCS, BLM, and US Forest Service for years. At one point it was distributed along with GRASS, but that no longer seems to be the case. It pretty much dropped out of existence after project 615 made the ESRI suite available to all of these Federal Agencies. We used a port of it on 24 Linux kernel 0.9.1 slackware boxes in 1992 to convert a huge amount aerial photo interpretation data to vector polygons as part of the Interior Columbia Ecosystem Management Project (ICBEMP) mid-scale assesment. As far as I know, this was the first large scale use of Linux within the US Forest Service/BLM. I digress though The product continued to be developed by Infotec as a commercial product and I believe David Mandel who once worked for them still has a copy of the public domain source code. The GRASS source code and Linux Binaries are available at http://grass.itc.it/oldprojects/ltplus/ David had a page up at ltplus.org, but it seems to be dead today. Craig On Thu, Feb 4, 2010 at 11:40 AM, 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 > Discuss@lists.osgeo.org > http://lists.osgeo.org/mailman/listinfo/discuss > > -- Craig Miller Geospatial Software Architect ___ Discuss mailing list Discuss@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/discuss
Re: [OSGeo-Discuss] Open Source Raster Tracing - What Is Available?
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_newc...@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" To Sent by: "OSGeo Discussions" discuss-boun...@l ists.osgeo.org cc Subject 02/04/2010 02:40 [OSGeo-Discuss] Open Source Raster PMTracing - What Is Available? Please respond to OSGeo Discussions 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 Discuss@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/discuss <><><>___ Discuss mailing list Discuss@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/discuss
Re: [OSGeo-Discuss] Open Source Raster Tracing - What Is Available?
On Feb 4, 2010, at 2:40 PM, 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. Landon I see that some folks are working on some OTB plugins for QGIS that will either do this or be great examples of how to go about this in Python I believe most of this work is making it back into OTB http://whatnicklife.blogspot.com/2009_12_01_archive.html Cheers Norman___ Discuss mailing list Discuss@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/discuss
Re: [OSGeo-Discuss] Open Source Raster Tracing - What Is Available?
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" To: "OSGeo Discussions" 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 > Discuss@lists.osgeo.org > http://lists.osgeo.org/mailman/listinfo/discuss ___ Discuss mailing list Discuss@lists.osgeo.org 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 Discuss@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/discuss
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 Discuss@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/discuss ___ Discuss mailing list Discuss@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/discuss
[OSGeo-Discuss] Open Source Raster Tracing - What Is Available?
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 Discuss@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/discuss
