topic Re: how to extract a DEM using the polygon? in ArcGIS Pro Questions https://community.esri.com/t5/arcgis-pro-questions/how-to-extract-a-dem-using-the-polygon/m-p/371299#M16315 <HTML><HEAD></HEAD><BODY><P>Hi Ke,</P><P></P><P>You will need the Spatial Analyst extension, and then you can use the <A href="https://pro.arcgis.com/en/pro-app/tool-reference/spatial-analyst/extract-by-mask.htm">Extract by Mask</A> tool.&nbsp;</P></BODY></HTML> Tue, 21 Jan 2020 16:15:00 GMT JakeSkinner 2020-01-21T16:15:00Z how to extract a DEM using the polygon? https://community.esri.com/t5/arcgis-pro-questions/how-to-extract-a-dem-using-the-polygon/m-p/371298#M16314 <HTML><HEAD></HEAD><BODY><P>I have the whole world DEM and a country's shapefile, how can I only get this country's DEM in Pro? Which tool to use? Intersect? Thanks</P></BODY></HTML> Tue, 21 Jan 2020 16:08:55 GMT https://community.esri.com/t5/arcgis-pro-questions/how-to-extract-a-dem-using-the-polygon/m-p/371298#M16314 KeWang1 2020-01-21T16:08:55Z Re: how to extract a DEM using the polygon? https://community.esri.com/t5/arcgis-pro-questions/how-to-extract-a-dem-using-the-polygon/m-p/371299#M16315 <HTML><HEAD></HEAD><BODY><P>Hi Ke,</P><P></P><P>You will need the Spatial Analyst extension, and then you can use the <A href="https://pro.arcgis.com/en/pro-app/tool-reference/spatial-analyst/extract-by-mask.htm">Extract by Mask</A> tool.&nbsp;</P></BODY></HTML> Tue, 21 Jan 2020 16:15:00 GMT https://community.esri.com/t5/arcgis-pro-questions/how-to-extract-a-dem-using-the-polygon/m-p/371299#M16315 JakeSkinner 2020-01-21T16:15:00Z Re: how to extract a DEM using the polygon? https://community.esri.com/t5/arcgis-pro-questions/how-to-extract-a-dem-using-the-polygon/m-p/371300#M16316 <HTML><HEAD></HEAD><BODY><P>And if you intend to do any projection during or after the extraction process, make sure you read up on&nbsp;</P><P><A class="link-titled" href="https://pro.arcgis.com/en/pro-app/tool-reference/environment-settings/how-the-cell-size-projection-method-environment-setting-works.htm" title="https://pro.arcgis.com/en/pro-app/tool-reference/environment-settings/how-the-cell-size-projection-method-environment-setting-works.htm">How the Cell Size Projection Method environment setting works—Geoprocessing | ArcGIS Desktop</A>&nbsp;</P><P>so that your data maintains some semblance of the original.&nbsp; If you are working with a raster and featureclass in decimal degrees, then the raster extent and cell size are the only things you need to consider.&nbsp; If you intend to project the raster then the projection method will be a factor</P></BODY></HTML> Wed, 22 Jan 2020 00:15:36 GMT https://community.esri.com/t5/arcgis-pro-questions/how-to-extract-a-dem-using-the-polygon/m-p/371300#M16316 DanPatterson_Retired 2020-01-22T00:15:36Z