DESCRIPTION

r.in.wms handles all of downloading and importing raster data from an OGC WMS, OGC WMTS and NASA OnEarth Tiled WMS web mapping servers. It needs only be told the desired data to collect (bounds and resolution) via a region, the server to get the data from, and the layer or layers to get. It downloads the data in tiles, reprojects it, imports it, and patches it back together.

NOTES

To understand the data you are getting it is necessary to look at the capabilities of the WMS server. This should be available via a capabilities request, an example capabilities request to NASA's OnEarth server.

When using GDAL WMS driver (driver=WMS_GDAL), the GDAL library needs to be built with WMS support, see GDAL WMS manual page for details.

NASA OnEarth Tiled WMS

Into parameter layers insert name of TiledGroup from Tile Service file. Time variable is possible to specify in urlparams parameter, e.g: urlparams='time=2012-1-1'.

EXAMPLES

General Get Capabilities Request

r.in.wms -c url=http://wms.cuzk.cz/wms.asp

Download raster data from WMS server (GetMap request)

Open Street Map

Note: European coverage:

r.in.wms url=http://watzmann-geog.urz.uni-heidelberg.de/cached/osm layers=osm_auto:all output=osm format=png

r.in.wms url=http://irs.gis-lab.info layers=osm output=osm format=png

More OSM WMS servers can be found online, e.g. on the OSM wiki in a OSM WMS Servers list and on the OSM-WMS-EUROPE page.

World data

r.in.wms url=http://iceds.ge.ucl.ac.uk/cgi-bin/icedswms layers=bluemarble,landsat_1_01 styles=default,default output=landsat srs=4326 format=png

Note: server supports only WMS 1.1.1

r.in.wms url=http://www2.demis.nl/WMS/wms.asp layers=Countries,Borders,Coastline output=countries srs=4326 format=png

OGC WMTS Example

r.in.wms url=http://gpp3-wxs.ign.fr/yourAPIkey/geoportail/wmts layers=ORTHOIMAGERY.ORTHOPHOTOS output=orthophoto srs=3857 format=jpeg driver=WMTS_GRASS style=normal password=* username=*

Note: username, password and API key can be get from IGN API website

NASA OnEarth Tiled WMS Example

r.in.wms output=global_mosaic url=http://onearth.jpl.nasa.gov/wms.cgi layers='Global Mosaic, visual' driver=OnEarth_GRASS

Data covering the Czech Republic

r.in.wms output=kn url=http://wms.cuzk.cz/wms.asp layers=prehledka_kraju-linie srs=4326 format=png

r.in.wms url=http://geoportal.cuzk.cz/WMTS_ORTOFOTO/WMTService.aspx layers=orto output=ortofoto srs=3857 format=jpeg driver=WMTS_GRASS style=default

Note: data are provided by Czech office for surveying, mapping and cadastre.

REQUIREMENTS

r.in.wms requires gdalwarp utility from GDAL/OGR library.

REFERENCES

AUTHOR

Stepan Turek, Czech Technical University in Prague, Czech Republic (bachelor's final project 2012, mentor: Martin Landa)

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