topic How to create vector roads center lines from raster? in Geoprocessing Questions https://community.esri.com/t5/geoprocessing-questions/how-to-create-vector-roads-center-lines-from/m-p/62319#M2189 <HTML><HEAD></HEAD><BODY><P>Hello. I need to know how to create roads vector center lines from raster. I have used raster classification tool to classify raster and after that reclassify tool to filter the roads from other values. After that I have used "Raster to polyline" tool and checked the Simplify box, but the results are not really good (see attachment). Does anyone know better way to solve my problem?</P><P>Thanks in advance</P></BODY></HTML> Sat, 02 Sep 2017 14:42:12 GMT SLobodanKomatina 2017-09-02T14:42:12Z How to create vector roads center lines from raster? https://community.esri.com/t5/geoprocessing-questions/how-to-create-vector-roads-center-lines-from/m-p/62319#M2189 <HTML><HEAD></HEAD><BODY><P>Hello. I need to know how to create roads vector center lines from raster. I have used raster classification tool to classify raster and after that reclassify tool to filter the roads from other values. After that I have used "Raster to polyline" tool and checked the Simplify box, but the results are not really good (see attachment). Does anyone know better way to solve my problem?</P><P>Thanks in advance</P></BODY></HTML> Sat, 02 Sep 2017 14:42:12 GMT https://community.esri.com/t5/geoprocessing-questions/how-to-create-vector-roads-center-lines-from/m-p/62319#M2189 SLobodanKomatina 2017-09-02T14:42:12Z Re: How to create vector roads center lines from raster? https://community.esri.com/t5/geoprocessing-questions/how-to-create-vector-roads-center-lines-from/m-p/62320#M2190 <HTML><HEAD></HEAD><BODY><P>Can you show a picture of the original raster? The screenshot of the lines look like the outlines of the pixels, but this may be related to your&nbsp;input raster (multiple values for instance).</P></BODY></HTML> Sat, 02 Sep 2017 17:53:06 GMT https://community.esri.com/t5/geoprocessing-questions/how-to-create-vector-roads-center-lines-from/m-p/62320#M2190 XanderBakker 2017-09-02T17:53:06Z Re: How to create vector roads center lines from raster? https://community.esri.com/t5/geoprocessing-questions/how-to-create-vector-roads-center-lines-from/m-p/62321#M2191 <HTML><HEAD></HEAD><BODY><P>Try<STRONG> <A href="http://desktop.arcgis.com/en/arcmap/latest/tools/spatial-analyst-toolbox/thin.htm">Thin </A>in</STRONG> the spatial analyst, before converting to polyline.&nbsp; It isn't going to be perfect.&nbsp; Even converting to multipoint won't help much since that would have to be followed by a spanning tree, which still isn't guaranteed to connect all the segments.</P></BODY></HTML> Sat, 02 Sep 2017 18:23:53 GMT https://community.esri.com/t5/geoprocessing-questions/how-to-create-vector-roads-center-lines-from/m-p/62321#M2191 DanPatterson_Retired 2017-09-02T18:23:53Z Re: How to create vector roads center lines from raster? https://community.esri.com/t5/geoprocessing-questions/how-to-create-vector-roads-center-lines-from/m-p/62322#M2192 <HTML><HEAD></HEAD><BODY><P>Thanks a lot! Great!</P></BODY></HTML> Sat, 02 Sep 2017 18:39:17 GMT https://community.esri.com/t5/geoprocessing-questions/how-to-create-vector-roads-center-lines-from/m-p/62322#M2192 SLobodanKomatina 2017-09-02T18:39:17Z Re: How to create vector roads center lines from raster? https://community.esri.com/t5/geoprocessing-questions/how-to-create-vector-roads-center-lines-from/m-p/62323#M2193 <HTML><HEAD></HEAD><BODY><P>I also want to connect lines which belongs to roads, because when I have made the raster classification some roads are cuted because of different pixel color that intersect it. How I can connect the roads now?</P></BODY></HTML> Sat, 02 Sep 2017 18:53:56 GMT https://community.esri.com/t5/geoprocessing-questions/how-to-create-vector-roads-center-lines-from/m-p/62323#M2193 SLobodanKomatina 2017-09-02T18:53:56Z Re: How to create vector roads center lines from raster? https://community.esri.com/t5/geoprocessing-questions/how-to-create-vector-roads-center-lines-from/m-p/62324#M2194 <HTML><HEAD></HEAD><BODY><P>Can you share a screenshot of what you have after applying the tool suggested by Dan?</P></BODY></HTML> Sat, 02 Sep 2017 19:14:46 GMT https://community.esri.com/t5/geoprocessing-questions/how-to-create-vector-roads-center-lines-from/m-p/62324#M2194 XanderBakker 2017-09-02T19:14:46Z Re: How to create vector roads center lines from raster? https://community.esri.com/t5/geoprocessing-questions/how-to-create-vector-roads-center-lines-from/m-p/62325#M2195 <HTML><HEAD></HEAD><BODY><P>I got this when I have used Thin:<IMG alt="" class="image-1 jive-image j-img-original" src="https://community.esri.com/legacyfs/online/369646_thin.png" style="width: 620px; height: 317px;" /></P><P>Now when I use Raster to polyline tool the results are great. Now I just need to connect divided lines.</P></BODY></HTML> Sat, 02 Sep 2017 19:22:16 GMT https://community.esri.com/t5/geoprocessing-questions/how-to-create-vector-roads-center-lines-from/m-p/62325#M2195 SLobodanKomatina 2017-09-02T19:22:16Z Re: How to create vector roads center lines from raster? https://community.esri.com/t5/geoprocessing-questions/how-to-create-vector-roads-center-lines-from/m-p/62326#M2196 <HTML><HEAD></HEAD><BODY><P>If what you're getting from a simple Thin run is not doing the trick, you may want to look into the part of ArcGIS dedicated to this task: <A href="http://desktop.arcgis.com/en/arcmap/latest/extensions/arcscan/what-is-arcscan-.htm">ArcScan</A>. This used to be an separate add-on extension but now the extension it's part of the core software license. ArcScan includes interactive tools that are set up to trace the raster data and jump the gaps for you!</P></BODY></HTML> Sat, 02 Sep 2017 19:32:16 GMT https://community.esri.com/t5/geoprocessing-questions/how-to-create-vector-roads-center-lines-from/m-p/62326#M2196 curtvprice 2017-09-02T19:32:16Z