topic Calculate Buffers using Barriers in Geoprocessing Questions https://community.esri.com/t5/geoprocessing-questions/calculate-buffers-using-barriers/m-p/735682#M24279 <HTML><HEAD></HEAD><BODY><SPAN>Here is a task that took me a little bit to figure out but I'm wondering if anyone else has had a similar geoprocessing challenge.&nbsp; See attached screen shot for illustration.&nbsp; I wanted to buffer a feature to determine the extent of "exposure" for locations on the leeward side of barrier features.&nbsp; I can't do this using the select by location options because the barrier is not taken into account.&nbsp; I could buffer a layer and erase based on the barrier features and delete the leeward residuals but I'm dealing with some 15,000 points and even more barrier features.&nbsp; My work around was to use the lineofsight2d command in the GME (</SPAN><A href="http://www.spatialecology.com/gme/">Geospatial Modeling Environment</A><SPAN>).&nbsp; The process is multistep so it would be </SPAN><STRONG>nice to have this as a tool</STRONG><SPAN>.&nbsp; The command requires locations (points) to determine a line of sight area using a polygon input for barrier features.&nbsp; If you have a polygon that you want to use as the benchmark for the LOS locations you will first have to convert it to a point file to use with the GME command (Use Densify to add vertices as needed for more LOS locations).</SPAN></BODY></HTML> Fri, 08 Mar 2013 21:28:33 GMT LeonDelwiche 2013-03-08T21:28:33Z Calculate Buffers using Barriers https://community.esri.com/t5/geoprocessing-questions/calculate-buffers-using-barriers/m-p/735682#M24279 <HTML><HEAD></HEAD><BODY><SPAN>Here is a task that took me a little bit to figure out but I'm wondering if anyone else has had a similar geoprocessing challenge.&nbsp; See attached screen shot for illustration.&nbsp; I wanted to buffer a feature to determine the extent of "exposure" for locations on the leeward side of barrier features.&nbsp; I can't do this using the select by location options because the barrier is not taken into account.&nbsp; I could buffer a layer and erase based on the barrier features and delete the leeward residuals but I'm dealing with some 15,000 points and even more barrier features.&nbsp; My work around was to use the lineofsight2d command in the GME (</SPAN><A href="http://www.spatialecology.com/gme/">Geospatial Modeling Environment</A><SPAN>).&nbsp; The process is multistep so it would be </SPAN><STRONG>nice to have this as a tool</STRONG><SPAN>.&nbsp; The command requires locations (points) to determine a line of sight area using a polygon input for barrier features.&nbsp; If you have a polygon that you want to use as the benchmark for the LOS locations you will first have to convert it to a point file to use with the GME command (Use Densify to add vertices as needed for more LOS locations).</SPAN></BODY></HTML> Fri, 08 Mar 2013 21:28:33 GMT https://community.esri.com/t5/geoprocessing-questions/calculate-buffers-using-barriers/m-p/735682#M24279 LeonDelwiche 2013-03-08T21:28:33Z