These are chat archives for PDAL/PDAL
pdal ground, so probably no need to put together the pipeline you are working through, unless I'm missing something. That being said, the step you describe of first finding minimum points per cell is quite common. We could expose this as its own filter, if enough people found it useful. It begs the question of "How are you going to use it in your pipeline?" For example, do you really want to remove all but the minimum (or central, or whatever) points per cell? Or do you want to label them in some way, such that this information can be used downstream in the pipeline without being a destructive operation.