topic How to reduce the average point spacing/resolution of a LAS dataset in LIDAR Resources Questions https://community.esri.com/t5/lidar-resources-questions/how-to-reduce-the-average-point-spacing-resolution/m-p/767358#M8 <HTML><HEAD></HEAD><BODY><P>Hello all! I am working on a project that will compare two LAS datasets. The problem is that each has a different average point spacing, 2.8 and 1.3 respectively. I am tying to reduce the point spacing of the 1.3 dataset to a number closer to 2.8 for comparisons. I have tried converting them to multipoints and removing them that way but nothing seems to work. Any help or suggestions is greatly appreciated!</P></BODY></HTML> Tue, 06 Dec 2016 23:21:27 GMT MichaelMadsen1 2016-12-06T23:21:27Z How to reduce the average point spacing/resolution of a LAS dataset https://community.esri.com/t5/lidar-resources-questions/how-to-reduce-the-average-point-spacing-resolution/m-p/767358#M8 <HTML><HEAD></HEAD><BODY><P>Hello all! I am working on a project that will compare two LAS datasets. The problem is that each has a different average point spacing, 2.8 and 1.3 respectively. I am tying to reduce the point spacing of the 1.3 dataset to a number closer to 2.8 for comparisons. I have tried converting them to multipoints and removing them that way but nothing seems to work. Any help or suggestions is greatly appreciated!</P></BODY></HTML> Tue, 06 Dec 2016 23:21:27 GMT https://community.esri.com/t5/lidar-resources-questions/how-to-reduce-the-average-point-spacing-resolution/m-p/767358#M8 MichaelMadsen1 2016-12-06T23:21:27Z Re: How to reduce the average point spacing/resolution of a LAS dataset https://community.esri.com/t5/lidar-resources-questions/how-to-reduce-the-average-point-spacing-resolution/m-p/767359#M9 <HTML><HEAD></HEAD><BODY><P>Options:</P><P>&nbsp;&nbsp;&nbsp;1. With your output multipoints, you could use multipart to single part on the 1.3 and calculate a field with a objected MOD 4, then select the ones with MOD field = 0.&nbsp;&nbsp; This would get it close as the 2.8 spacing should roughly have 1/4 the points of the 1.3 spacing.</P><P>&nbsp;&nbsp; 2. Another option would be to export to rasters with the same resolution from the 1.3 and 2.8 spacing lidar sets.&nbsp; You could then compare the rasters and do a difference.&nbsp;&nbsp; I suggest you use the 2.8 as your output size.</P><P></P><P>Arthur Crawford - Esri</P></BODY></HTML> Thu, 15 Dec 2016 17:41:18 GMT https://community.esri.com/t5/lidar-resources-questions/how-to-reduce-the-average-point-spacing-resolution/m-p/767359#M9 ArthurCrawford 2016-12-15T17:41:18Z