Generating a DTM¶
- Purpose:
Generate a DTM from ground-filtered data
Data was created in Identifying ground
Visualize DTM using QGIS
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)¶

DTM (visualization)¶

DTM (visualization)¶

DTM (visualization)¶

DTM (visualization)¶

DTM (visualization)¶

DTM (visualization)¶

Next¶
On to Creating surface meshes