## DESCRIPTION

v.in.pdal supports the following PDAL filters:

- groud detection with Point Cloud Library (PCL) Progressive Morphological Filter (Zhang 2003) (filters.ground)
- filters.height (requires PCL)

v.in.pdal supports the following filters natively:

- 2D region filter
- Z coordinates filter
- return filter
- class filter

## EXAMPLES

Import only XYZ coordinates of points, limit the import to the current computational region and reproject to the Location projection during the import:

    v.in.pdal input=points.las output=points -c -r -w

## SEE ALSO

r.in.lidar, r3.in.lidar, g.region, v.vect.stats v.in.ogr,

## REFERENCES

- V. Petras, A. Petrasova, J. Jeziorska, H. Mitasova (2016): Processing UAV and lidar point clouds in GRASS GIS. XXIII ISPRS Congress 2016 [ISPRS Archives, ResearchGate]
- Zhang, Keqi, et al. A progressive morphological filter for removing nonground measurements from airborne LIDAR data. Geoscience and Remote Sensing, IEEE Transactions on 41.4 (2003): 872-882.

## AUTHOR

Vaclav Petras, NCSU GeoForAll Lab

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