IGNDEM — IGN DEM

Downloads the DEM of the current view from the IGN WCS service (Spain).

• Command: IGNDEM · Global name: _IGNDEM
• Ribbon: Topography › Terrain data

Downloads the digital elevation model of the area shown on screen from the IGN elevation WCS service (Spain) and creates it as a surface, like IMPORTDEM. There is no need to download or unzip sheets.

Usage

1. Give the drawing its coordinate system with GEOGRAPHICLOCATION and pan to the area.
2. Enter IGNDEM or click IGN DEM in the Terrain data panel of the Topography tab.

Resolution in metres [5/25/200/500/1000/Auto] <Auto>:

3. Press Enter for the automatic resolution or choose the DEM grid spacing (5, 25, 200, 500 or 1000 m).

Notes

• Auto: the finest grid with which the view stays below about 250,000 cells; it is then subsampled to about 30,000 points. For the 5 m DEM, zoom in.
• The area is requested in ETRS89 / UTM 30 (EPSG 25830; in the Canary Islands, REGCAN95 / UTM 28), clipped to the view and reprojected to the drawing coordinate system, with a warning when the datum changes.
• It needs a connection. The answer is kept in the map cache for seven days, like the tiles.
• The source ("Instituto Geográfico Nacional", CC BY 4.0) is labelled in the lower-left corner of the view, as the licence requires.
• Service: https://servicios.idee.es/wcs-inspire/mdt. It only covers Spain; for other countries, see Map servers by country.

See also

IMPORTDEM · CONTOUR · MAPSERVICE · GEOGRAPHICLOCATION