topic Querying Large Raster is SLOW!!! in ArcGIS Spatial Analyst Questions https://community.esri.com/t5/arcgis-spatial-analyst-questions/querying-large-raster-is-slow/m-p/424654#M5947 <HTML><HEAD></HEAD><BODY><SPAN>I am running ArcGIS 10 on a new Windows 7 machine.&nbsp; Generally, my performance is quite good, especially as compared to my old Windows XP machine, but I am having a real problem with 3-D Analyst and Spatial Analyst.</SPAN><BR /><BR /><SPAN>I have a DTM comprising 3-ft cells for all of NYC.&nbsp; I am looking at a small part of it that I created as a separate file.&nbsp; I can classify it, use the Raster Calculator on it, Identify it, etc. fairly easily, but when I try to use the shortest path tool, the contour tool, or the interpolate a line (to make a cross section) tool, either in 3-D analyst or off the Catalog Toolbox, it runs FOREVER!&nbsp; When I do the same operations on a TIN that I created from a selection of points in the raster, it is is done immediately.&nbsp; Is this just a function of the small cell size???</SPAN></BODY></HTML> Wed, 18 Apr 2012 17:03:18 GMT GaryOstroff 2012-04-18T17:03:18Z Querying Large Raster is SLOW!!! https://community.esri.com/t5/arcgis-spatial-analyst-questions/querying-large-raster-is-slow/m-p/424654#M5947 <HTML><HEAD></HEAD><BODY><SPAN>I am running ArcGIS 10 on a new Windows 7 machine.&nbsp; Generally, my performance is quite good, especially as compared to my old Windows XP machine, but I am having a real problem with 3-D Analyst and Spatial Analyst.</SPAN><BR /><BR /><SPAN>I have a DTM comprising 3-ft cells for all of NYC.&nbsp; I am looking at a small part of it that I created as a separate file.&nbsp; I can classify it, use the Raster Calculator on it, Identify it, etc. fairly easily, but when I try to use the shortest path tool, the contour tool, or the interpolate a line (to make a cross section) tool, either in 3-D analyst or off the Catalog Toolbox, it runs FOREVER!&nbsp; When I do the same operations on a TIN that I created from a selection of points in the raster, it is is done immediately.&nbsp; Is this just a function of the small cell size???</SPAN></BODY></HTML> Wed, 18 Apr 2012 17:03:18 GMT https://community.esri.com/t5/arcgis-spatial-analyst-questions/querying-large-raster-is-slow/m-p/424654#M5947 GaryOstroff 2012-04-18T17:03:18Z Re: Querying Large Raster is SLOW!!! https://community.esri.com/t5/arcgis-spatial-analyst-questions/querying-large-raster-is-slow/m-p/424655#M5948 <HTML><HEAD></HEAD><BODY><SPAN>Gary</SPAN><BR /><BR /><SPAN>Is it the interactive contour tool on the 3D or Spatial Analyst toolbar that you are saying is slow?</SPAN><BR /><BR /><SPAN>If that is the case, please install Service Pack 4. We changed the interactive tool to rather work on display resolution so it'll be much faster.</SPAN><BR /><BR /><SPAN>Steve</SPAN></BODY></HTML> Wed, 18 Apr 2012 17:28:45 GMT https://community.esri.com/t5/arcgis-spatial-analyst-questions/querying-large-raster-is-slow/m-p/424655#M5948 SteveLynch 2012-04-18T17:28:45Z Re: Querying Large Raster is SLOW!!! https://community.esri.com/t5/arcgis-spatial-analyst-questions/querying-large-raster-is-slow/m-p/424656#M5949 <HTML><HEAD></HEAD><BODY><BLOCKQUOTE class="jive-quote">Gary<BR /><BR />Is it the interactive contour tool on the 3D or Spatial Analyst toolbar that you are saying is slow?<BR /><BR /><STRONG>If that is the case, please install Service Pack 4. We changed the interactive tool to rather work on display resolution so it'll be much faster.</STRONG><BR />Steve</BLOCKQUOTE><BR /><BR /><SPAN>Installed Service Pack 4, and tried again.&nbsp; It ran forever.&nbsp; Then I tried it yet again, and it was fast!?&nbsp; Several more tries, all fast.</SPAN><BR /><SPAN>Hope it stays that way!</SPAN></BODY></HTML> Thu, 19 Apr 2012 13:34:27 GMT https://community.esri.com/t5/arcgis-spatial-analyst-questions/querying-large-raster-is-slow/m-p/424656#M5949 GaryOstroff 2012-04-19T13:34:27Z