DGM1 Nordrhein-Westfalen
- Author: O.Conrad (c) 2025
- Menu: File | Web Services | DGM1 Germany
Description
This tool provides easy-to-use access to the 'Digitales Geländemodell 1m (DGM1)' elevation data from the OpenGeodata server of North Rhine-Westphalia (Nordrhein-Westfalen, NRW). It uses a local database in the chosen directory which provides the original tiles. If the tiles covering the requested area are not found in this directory the tool tries to download these from the server.
The data is licensed under Data licence Germany - Zero - Version 2.0.
Any use is permitted without restrictions or conditions. The data and meta-data provided may, for commercial and non-commercial use, in particular
1. be copied, printed, presented, altered, processed and transmitted to third parties;
2. be merged with own data and with the data of others and be combined to form new and independent datasets;
3. be integrated in internal and external business processes, products and applications in public and non-public electronic networks.
References
Parameters
| | Name | Type | Identifier | Description | Constraints |
|---|
| Input | Grid | grid, input | GRID | - | - |
| Shapes | shapes, input | SHAPES | - | - |
| Output | DGM1 | data object Grid, output, optional | RESULT | - | - |
| Options | Local Tiles Directory | file path | TILES | Download location for tiles. If requested tile is already present download will be skipped. | - |
| Extent | choice | EXTENT | - | Available Choices:
[0] user defined
[1] shapes extent
[2] grid system extent
[3] grid system
Default: 0 |
| Grid System | grid system | GRID_SYSTEM | - | - |
| West | floating point number | XMIN | - | Default: 0.000000 |
| East | floating point number | XMAX | - | Default: 1000.000000 |
| South | floating point number | YMIN | - | Default: 0.000000 |
| North | floating point number | YMAX | - | Default: 1000.000000 |
| Columns | integer number | NX | - | Minimum: 1
Default: 1001 |
| Rows | integer number | NY | - | Minimum: 1
Default: 1001 |
| Buffer | floating point number | BUFFER | add buffer (map units) to extent | Minimum: 0.000000
Default: 0.000000 |
| Cellsize | floating point number | CELLSIZE | - | Minimum: 0.100000
Default: 1.000000 |
| Coordinate System Definition | text | CRS_STRING | Supported formats comprise PROJ and WKT strings, object codes (e.g. "EPSG:4326"). | - |
| Data Set | choice | DATASET | Download Digital Terrain Model (DGM) or Digital Surface Model (DOM) | Available Choices:
[0] DGM
[1] DOM
Default: 0 |
Command Line
Usage: saga_cmd io_webservices 9 [-RESULT ] [-TILES ] [-EXTENT ] [-GRID ] [-SHAPES ] [-XMIN ] [-XMAX ] [-YMIN ] [-YMAX ] [-NX ] [-NY ] [-BUFFER ] [-CELLSIZE ] [-CRS_STRING ] [-DATASET ]
-RESULT: DGM1
data object Grid, output, optional
-TILES: Local Tiles Directory
file path
-EXTENT:
Extent
choice
Available Choices:
[0] user defined
[1] shapes extent
[2] grid system extent
[3] grid system
Default: 0
-GRID: Grid
grid, input
-SHAPES: Shapes
shapes, input
-XMIN: West
floating point number
Default: 0.000000
-XMAX: East
floating point number
Default: 1000.000000
-YMIN: South
floating point number
Default: 0.000000
-YMAX: North
floating point number
Default: 1000.000000
-NX: Columns
integer number
Minimum: 1
Default: 1001
-NY: Rows
integer number
Minimum: 1
Default: 1001
-BUFFER: Buffer
floating point number
Minimum: 0.000000
Default: 0.000000
-CELLSIZE: Cellsize
floating point number
Minimum: 0.100000
Default: 1.000000
-CRS_STRING: Coordinate System Definition
text
-DATASET: Data Set
choice
Available Choices:
[0] DGM
[1] DOM
Default: 0