[pdal] Greedy Projection FIlter

[Paul Harwood]

Looking for some help:

I need to create a surface and I have been looking at the Mesh filters in
PDAL.

Filters.delaunay I have used extensively in the past and I know it well but
I was experimenting with the others.

I got filters.poisson working for all of its limitations but I cannot get
filters.greedyprojection to produce anything.

Am I doing something wrong or is it just not working?

When I run it using the same pipeline structure and the same input
file that works for the other two filters -- I get nothing. I don't get an
error (even with --developer-debug), I don't get an empty file, The
pipeline completes successfully and no file has been written. I have tried
playing around with the parameters that the docs suggest and in line with
the PCL original suggestions - but just a stubborn "non!" from the filter :(

I am using this pipeline :

{
  "pipeline":
  [
    {
      "type": "readers.las",
      "filename": "object3.las"
    },
    {
      "type": "filters.greedyprojection",
      "multiplier" : 2,
      "radius": 10,
      "num_neighbors" : 100
    },
    {
      "faces": "true",
      "filename": "object4.ply",
      "type": "writers.ply"
    }
  ]
}
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