[pdal] CSV to LAS

[Dan Mullins]

We're trying to store a few billion X/Y points, some associated data and
want to retrieve points by some boundary later. EPT or COPC look like great
solutions, but I'm struggling to make it work. I can produce the LAS file,
but when I go to plas.io to verify I get this error "The data doesn't
appear to be in a projected coordinate space."

Sample CSV file (dallas.txt):
X,Y,Z
41.82793344188653,-94.03057008447364,0

Pipeline:
  "pipeline": [
    {
      "type": "readers.text",
      "filename": "dallas.txt"
    },
    {
      "type": "filters.reprojection",
      "out_srs": "EPSG:4326",
      "in_srs": "EPSG:26913"
    },
    {
      "type": "writers.las",
      "filename": "dallas.las",
      "a_srs": "EPSG:26913"
    }
  ]
}

Any advice or troubleshooting tips would be appreciated.
Dan
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