Is there a way to calculate the density of a raster cells in ArcGIS?
The dataset I have is of ground points (there are some cells assigned no-value) and I want to calculate the density of points so that I can chose the best interpolation method.
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how do you want to measure density? pixels per square foot?– Paul HMar 7, 2017 at 20:55
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Is your raster a Lidar point cloud derivative? If so, do you have access to the original point cloud data?– Aaron ♦Mar 7, 2017 at 21:22
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Are you trying to get an 'average number of pulses' over the whole raster? Or do you have a target density and want to calculate pass/fail? If you calculate the statistics with 0 as NoData you will be able to see the min/max/mean/standard deviation for the whole raster excluding cells with no pulses. If your cell size is 1 metre then the mean will be the average number of pulses per square metre.– Michael StimsonMar 7, 2017 at 22:31
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1 Answer
I would use Focal Statistics to calculate the sum of cells within a rectangular moving window.
From the documentation:
Calculates for each input cell location a statistic of the values within a specified neighborhood around it.
The following example shows focal statistics calculated within a 3x3 rectangular neighborhood.
OutRas = FocalStatistics(InRas1, NbrRectangle(3,3,MAP), "SUM", "")
