topic LAS Point Statistics as Raster - all points vs filtered set of points in 3D Questions https://community.esri.com/t5/3d-questions/las-point-statistics-as-raster-all-points-vs/m-p/77593#M485 <HTML><HEAD></HEAD><BODY><SPAN>I have run the LAS Point Stats as Raster tool on a LAS dataset.&nbsp; Then I also ran it on a LAS dataset Layer filtered for only 1st return points that are also classes 3,4,5 (low, medium and high veg). When I look at the resulting rasters (both with same cell size), they are exactly the same, with mean and SD exactly the same out to as many decimals as Arc displays.&nbsp; A random clicking with the Identify tool shows them to be exactly the same pixel by pixel as well. This should not be - the layer file filtering out only 1st return veg classified points should have about half the number of data points as the full LAS Dataset, and thus a much lower count per pixel.&nbsp; It appears the tool is ignoring the filters in the layer and processing all points.&nbsp; The filtered layer itself is correct, and displays only the first return veg points.&nbsp; Anyone noticed this problem?&nbsp; Or perhaps had it work correctly on a filtered LAS data layer?</SPAN></BODY></HTML> Fri, 06 Jun 2014 15:13:08 GMT PeterHarrel 2014-06-06T15:13:08Z LAS Point Statistics as Raster - all points vs filtered set of points https://community.esri.com/t5/3d-questions/las-point-statistics-as-raster-all-points-vs/m-p/77593#M485 <HTML><HEAD></HEAD><BODY><SPAN>I have run the LAS Point Stats as Raster tool on a LAS dataset.&nbsp; Then I also ran it on a LAS dataset Layer filtered for only 1st return points that are also classes 3,4,5 (low, medium and high veg). When I look at the resulting rasters (both with same cell size), they are exactly the same, with mean and SD exactly the same out to as many decimals as Arc displays.&nbsp; A random clicking with the Identify tool shows them to be exactly the same pixel by pixel as well. This should not be - the layer file filtering out only 1st return veg classified points should have about half the number of data points as the full LAS Dataset, and thus a much lower count per pixel.&nbsp; It appears the tool is ignoring the filters in the layer and processing all points.&nbsp; The filtered layer itself is correct, and displays only the first return veg points.&nbsp; Anyone noticed this problem?&nbsp; Or perhaps had it work correctly on a filtered LAS data layer?</SPAN></BODY></HTML> Fri, 06 Jun 2014 15:13:08 GMT https://community.esri.com/t5/3d-questions/las-point-statistics-as-raster-all-points-vs/m-p/77593#M485 PeterHarrel 2014-06-06T15:13:08Z