topic Create new weighted raster from DEM and polygons in ArcGIS Spatial Analyst Questions https://community.esri.com/t5/arcgis-spatial-analyst-questions/create-new-weighted-raster-from-dem-and-polygons/m-p/594217#M8650 <HTML><HEAD></HEAD><BODY><P>I am attempting to create a new, weighted raster from the combination of a regional DEM and a polygon shapefile.&nbsp; I've attached an image - the DEM is the background&nbsp;- the red/yellow region -- and the black polygons are from the shapefile.</P><P></P><P>What I am attempting to achieve is a new raster where the&nbsp;cell values&nbsp;represented by the polygons are 1 and everything else is zero.&nbsp; I would like the new raster to have the same extent as the original DEM.</P><P></P><P>I've tried a few approaches, using Clip to "cut" out the polygons and then Raster Calculator Con function to set various cells to zero but it seems very convoluted.&nbsp; Wondering if there is a cleaner approach?&nbsp;&nbsp;</P><P></P><P>Thanks in advance.</P><P>Dave</P></BODY></HTML> Fri, 31 Jan 2020 23:01:31 GMT DaveHunt 2020-01-31T23:01:31Z Create new weighted raster from DEM and polygons https://community.esri.com/t5/arcgis-spatial-analyst-questions/create-new-weighted-raster-from-dem-and-polygons/m-p/594217#M8650 <HTML><HEAD></HEAD><BODY><P>I am attempting to create a new, weighted raster from the combination of a regional DEM and a polygon shapefile.&nbsp; I've attached an image - the DEM is the background&nbsp;- the red/yellow region -- and the black polygons are from the shapefile.</P><P></P><P>What I am attempting to achieve is a new raster where the&nbsp;cell values&nbsp;represented by the polygons are 1 and everything else is zero.&nbsp; I would like the new raster to have the same extent as the original DEM.</P><P></P><P>I've tried a few approaches, using Clip to "cut" out the polygons and then Raster Calculator Con function to set various cells to zero but it seems very convoluted.&nbsp; Wondering if there is a cleaner approach?&nbsp;&nbsp;</P><P></P><P>Thanks in advance.</P><P>Dave</P></BODY></HTML> Fri, 31 Jan 2020 23:01:31 GMT https://community.esri.com/t5/arcgis-spatial-analyst-questions/create-new-weighted-raster-from-dem-and-polygons/m-p/594217#M8650 DaveHunt 2020-01-31T23:01:31Z Re: Create new weighted raster from DEM and polygons https://community.esri.com/t5/arcgis-spatial-analyst-questions/create-new-weighted-raster-from-dem-and-polygons/m-p/594218#M8651 <HTML><HEAD></HEAD><BODY><P>Con</P><P><A class="link-titled" href="https://pro.arcgis.com/en/pro-app/tool-reference/image-analyst/conditional-evaluation-with-con.htm" title="https://pro.arcgis.com/en/pro-app/tool-reference/image-analyst/conditional-evaluation-with-con.htm">Conditional evaluation with Con—Help | Documentation</A>&nbsp;</P><P><A class="link-titled" href="https://pro.arcgis.com/en/pro-app/tool-reference/image-analyst/con-.htm" title="https://pro.arcgis.com/en/pro-app/tool-reference/image-analyst/con-.htm">Con—Help | Documentation</A>&nbsp;</P><P>As for extents, you can set that and cell size and snap raster in the Environments tab of any tool in ArcToolbox</P></BODY></HTML> Sat, 08 Feb 2020 10:19:05 GMT https://community.esri.com/t5/arcgis-spatial-analyst-questions/create-new-weighted-raster-from-dem-and-polygons/m-p/594218#M8651 DanPatterson_Retired 2020-02-08T10:19:05Z