file geodatabase raster histogram

Thanks Ken, thats interesting. at the moment i'll use batch calculate statistics in arc, but presumably it wouldnt be too difficult to read and write these as format attributes?

 

 

Hi @Owen, I had a similar question, which I handled this way: Use RasterExpressionEvaluator to isolate a specific category in the raster. E.g., I was interested in the amount of nodata in the raster, so I used the expression IF (A[0] > 99999.0, 1, 0) to set nodata value to a value of 1 and all other data to a value of 0. After that I used a PointCloudCombiner to generate a pointcloud from the raster (point interval 1.0). Finally I used a PointCloudStatisticsCalculator to sum all z component values of the pointcloud. Since all values I was not interested in are zero, they don't contribute to the total sum. If you used a RasterPropertyExtractor to extract information on the raster, you can use that info to comput the area you're interested in. Like: total_area = sum(z) x spacing_x x spacing_y And so for any raster category you might be interested in.