CloudCompare forum

Hi,
I am trying to obtain a DTM and DSM from a point cloud. I use CSF plugin to classify ground and off-ground points. But, when I use Rasterize, I cannot obtained a DSM and DTM (from ground points) of the same size. For instance, the raster from the original cloud is 1659x1637 and the raster from ground points is 1657x1635.
Do you know how can I solve this or at least why this happens?

Thank you!

I guess it's because they don't have exactly the same extents. In this case, you can at least setup the grid extents (with the 'Edit grid' button of the Rasterize tool) so that the starting point is the same. At least they will be exactly at the same position in space.

Of course if the extents of the filtered cloud is smaller, the resulting raster will be smaller however.

Thank you so much for your fast reply!