r.ndsm.import - GRASS manual

NAME

r.ndsm.import - Downloads DSM and DTM for specified federal state and aoi and creates a single file of a normalised DSM.

KEYWORDS

raster, import, nDSM, nDOM, DOM, iDSM, DSM, DGM, DTM, open-geodata-germany

SYNOPSIS

r.ndsm.import

r.ndsm.import --help

r.ndsm.import [-kr] [aoi=name] [federal_state=string[,string,...]] [federal_state_file=name] [local_data_dir_ndsm=name] [local_data_dir_idsm=name] [local_data_dir_dsm=name] [local_data_dir_dtm=name] [download_dir=string] [alignment_raster=name] output=name [metadata=string] [--overwrite] [--help] [--verbose] [--quiet] [--ui]

Flags:

-k: keep downloaded data in the downloaddirectory
-r: Use native data resolution
--overwrite: Allow output files to overwrite existing files
--help: Print usage summary
--verbose: Verbose module output
--quiet: Quiet module output
--ui: Force launching GUI dialog

Parameters:

aoi=name: Name of input vector map; Polygon of the area of interest to set region
federal_state=string[,string,...]: Federal state(s) related to the area of interest e.g.:"Nordrhein-Westfalen"
federal_state_file=name: Path to text file containing the federal state(s) related to the area of interest
local_data_dir_ndsm=name: Directory with raster map of nDSMs to import (e.g. VRT)
local_data_dir_idsm=name: Directory with raster map of iDSMs to import (e.g. VRT)
local_data_dir_dsm=name: Directory with raster map of DSMs to import (e.g. VRT)
local_data_dir_dtm=name: Directory with raster map of DTMs to import (e.g. VRT)
download_dir=string: Path to output folder; path of download folder
alignment_raster=name: Name of raster map, used for raster alignment (if not given, dem extent and region resolution is used)
output=name [required]: Name for output raster map
metadata=string: Path to metadata output file (markdown format); Default:

DESCRIPTION
EXAMPLE
AUTHORS

DESCRIPTION

r.ndsm.import downloads (image based) digital surface models (iDSM/DSM, in German bDOM/DOM) for specified federal state and area of interest, stores it in a local directory, normalizes the DSM files with corresponding digital terrain model files (DTM, in german DGM), and creates a single file of a normalised DSM (nDSM, in German nDOM) in GRASS.
Implemented federal state options are:

Berlin
Brandenburg
Bremen
Hamburg
Hessen
Niedersachsen
Nordrhein-Westfalen (NW)
Sachsen
Thüringen

EXAMPLE

r.ndsm.import fs=Nordrhein-Westfalen aoi=Polygon_BonnBeuel output=NRW_nDSM_output

AUTHORS

Veronica Koess, mundialis GmbH & Co. KG
Anika Weinmann, mundialis GmbH & Co. KG
Kim Kaiser, mundialis GmbH & Co. KG

SOURCE CODE

Available at: r.ndsm.import source code (history)

Accessed: Monday Jul 27 12:28:39 2026