How to reduce the average point spacing/resolution of a LAS dataset

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12-06-2016 03:21 PM
MichaelMadsen1
New Contributor II

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!

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ArthurCrawford
Esri Contributor

Options:

   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.   This would get it close as the 2.8 spacing should roughly have 1/4 the points of the 1.3 spacing.

   2. Another option would be to export to rasters with the same resolution from the 1.3 and 2.8 spacing lidar sets.  You could then compare the rasters and do a difference.   I suggest you use the 2.8 as your output size.

Arthur Crawford - Esri

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