Adam, Here is the webpage for the data set I was working on. https://www.sciencebase.gov/catalog/item/5eaced5782cefae35a24af87 I downloaded and imported the DEM geotiff. I did not modify the imported projection information. Using Manifold System 9.0.180.0 (16Mar2023) I performed a variety of tile transforms on the data set, including slope (grade), slope (aspect), and filter, (variance pop). I used the same shape (circle), and radius (31) for each of the transforms. For the results I selected output to a new table for each transform. I chose 31 for the radius, as this distance is half of the elevation variance across the data set. For all of the transforms, I found that the (approximately) 62 pixels along the right and lower edges of the output images were unusually interpolated. Any thoughts would be appreciated.
