topic Need to understand the way edges are generated on point density or kernel density in ArcGIS Spatial Analyst Questions https://community.esri.com/t5/arcgis-spatial-analyst-questions/need-to-understand-the-way-edges-are-generated-on/m-p/518745#M7472 <HTML><HEAD></HEAD><BODY><SPAN>I'm running a point density model and I'm not understanding why or how the edges of the study area are computed.&nbsp; In the process run on the point layer of renters (the purplish raster), the study are seems abruptly cut off in and the total area returned is a much smaller area than that of the owners points (bluish raster).&nbsp; Not only that, the raster seems be be cut off right in the middle of a dense area on the west side of the study area.&nbsp; I need to be able to explain why this abrupt cut off happens, especially when I'm applying a stretched symbology to smooth out the surface.&nbsp; </SPAN><BR /><SPAN>How is the cutoff for that west edge of the study area calculated? </SPAN><BR /><BR /><SPAN>[ATTACH=CONFIG]13031[/ATTACH][ATTACH=CONFIG]13032[/ATTACH]</SPAN><BR /><BR /><SPAN>thanks!</SPAN></BODY></HTML> Tue, 27 Mar 2012 14:25:05 GMT deleted-user-AzQ5lcTQbS2a 2012-03-27T14:25:05Z Need to understand the way edges are generated on point density or kernel density https://community.esri.com/t5/arcgis-spatial-analyst-questions/need-to-understand-the-way-edges-are-generated-on/m-p/518745#M7472 <HTML><HEAD></HEAD><BODY><SPAN>I'm running a point density model and I'm not understanding why or how the edges of the study area are computed.&nbsp; In the process run on the point layer of renters (the purplish raster), the study are seems abruptly cut off in and the total area returned is a much smaller area than that of the owners points (bluish raster).&nbsp; Not only that, the raster seems be be cut off right in the middle of a dense area on the west side of the study area.&nbsp; I need to be able to explain why this abrupt cut off happens, especially when I'm applying a stretched symbology to smooth out the surface.&nbsp; </SPAN><BR /><SPAN>How is the cutoff for that west edge of the study area calculated? </SPAN><BR /><BR /><SPAN>[ATTACH=CONFIG]13031[/ATTACH][ATTACH=CONFIG]13032[/ATTACH]</SPAN><BR /><BR /><SPAN>thanks!</SPAN></BODY></HTML> Tue, 27 Mar 2012 14:25:05 GMT https://community.esri.com/t5/arcgis-spatial-analyst-questions/need-to-understand-the-way-edges-are-generated-on/m-p/518745#M7472 deleted-user-AzQ5lcTQbS2a 2012-03-27T14:25:05Z Re: Need to understand the way edges are generated on point density or kernel density https://community.esri.com/t5/arcgis-spatial-analyst-questions/need-to-understand-the-way-edges-are-generated-on/m-p/518746#M7473 <HTML><HEAD></HEAD><BODY><SPAN>Hi,</SPAN><BR /><BR /><SPAN>I would suggest you to set the extent (Environments tab &gt; expand Processing Extent&gt; </SPAN><A href="http://help.arcgis.com/en/arcgisdesktop/10.0/help/index.html#//001w00000009000000">Extent</A><SPAN>) same as the input point layer before calculating the point density. Click on the Environments tab within the tool&nbsp; to set the extent.</SPAN><BR /><BR /><SPAN>-Gayu</SPAN></BODY></HTML> Tue, 27 Mar 2012 14:42:19 GMT https://community.esri.com/t5/arcgis-spatial-analyst-questions/need-to-understand-the-way-edges-are-generated-on/m-p/518746#M7473 GayathriAlallasundaram 2012-03-27T14:42:19Z