Generating a DTM

Purpose:

writers.gdal

  • writers.gdal

  • Ported points2grid (OpenTopography)

  • IDW available for fill-in

  • Write TIFF/ASCII raster

  • Control pixel size

DTM (pipeline)

{
    "pipeline": [
        "./exercises/analysis/ground/denoised-ground-only.laz",
        {
            "filename":"./exercises/analysis/dtm/dtm.tif",
            "gdaldriver":"GTiff",
            "output_type":"all",
            "resolution":"2.0",
            "type": "writers.gdal"
        }
    ]
}

DTM (execution)

1
pdal pipeline ./exercises/analysis/dtm/gdal.json

DTM (command)

_images/dtm-run-command.png

DTM (visualization)

_images/dtm-add-raster-mean.png

DTM (visualization)

_images/dtm-qgis-classify.png

DTM (visualization)

_images/dtm-qgis-colorize-dtm.png

DTM (visualization)

_images/dtm-qgis-select-hillshade.png

DTM (visualization)

_images/dtm-qgis-gdaldem.png

DTM (visualization)

_images/dtm-qgis-hillshade-done.png