00_pipeline_create_DTM.json

{
    "pipeline":[
         "C:/pdal_tests/GLA_1544_532_BCAlbers_SP000-2606_v2.laz",
        {
          "type":"filters.assign",
          "assignment":"Classification[:]=0"
        },
        {
          "type":"filters.elm"
        },
        {
          "type":"filters.outlier"
        },
        {

          "type":"filters.smrf",
          "ignore":"Classification[7:7]",
          "slope":0.2,
          "window":16,
          "threshold":0.45,
          "scalar":1.2
        },
        {
          "type": "writers.gdal",
          "filename":"C:/pdal_tests/dtm.tif",
          "output_type":"idw",
          "gdaldriver":"GTiff",
          "resolution": 0.5,
          "radius": 1
        },
        {
          "type":"filters.range",
          "limits":"Classification[2:2]"
        }
    ]
}