GRASS logo

Note: A new GRASS GIS stable version has been released: GRASS GIS 7.4, available here.
Updated manual page: here

NAME - Downloads and imports data from WMS/WMTS/NASA OnEarth server.


raster, import, OGC web services

SYNOPSIS --help [-co] url=string output=name layers=string[,string,...] [styles=string[,string,...]] [format=string] [srs=integer] [driver=string] [wms_version=string] [maxcols=integer] [maxrows=integer] [urlparams=string] [username=string] [password=string] [method=string] [region=string] [bgcolor=string] [capfile=name] [capfile_output=name] [--overwrite] [--help] [--verbose] [--quiet] [--ui]


Get the server capabilities then exit
Do not request transparent data
Allow output files to overwrite existing files
Print usage summary
Verbose module output
Quiet module output
Force launching GUI dialog


url=string [required]
Typically starts with "http://"
output=name [required]
Name for output raster map
layers=string[,string,...] [required]
Layer(s) to request from the map server
Layer style(s) to request from the map server
Image format requested from the server
Options: geotiff, tiff, jpeg, gif, png, png8
Default: png
EPSG code of requested source projection
Default: 4326
Driver used to communication with server
Default: WMS_GRASS
WMS_GDAL: Download data using GDAL WMS driver
WMS_GRASS: Download data using native GRASS-WMS driver
WMTS_GRASS: Download data using native GRASS-WMTS driver
OnEarth_GRASS: Download data using native GRASS-OnEarth driver
WMS standard version
Options: 1.1.1, 1.3.0
Default: 1.1.1
Maximum columns to request at a time
Default: 512
Maximum rows to request at a time
Default: 512
Additional query parameters to pass to the server
Username for server connection
Password for server connection
Interpolation method to use in reprojection
Options: nearest, linear, cubic, cubicspline
Default: nearest
Request data for this named region instead of the current region bounds
Background color
Format: 0xRRGGBB
Capabilities file to parse (input). It is relevant for WMTS_GRASS and OnEarth_GRASS drivers
File where the server capabilities will be saved ('c' flag)

Table of contents

DESCRIPTION handles all of downloading and importing raster data from an OGC WMS and OGC WMTS web mapping servers. It only needs 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.


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 (see examples)

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.

Tiled WMS

Into the parameter layers the name of the TiledGroup need to be inserted from Tile Service file. Time variable can be specified in urlparams parameter, e.g: urlparams='time=2012-1-1'.


General Get Capabilities Request

# Topographic WMS with OpenStreetMap by mundialis -c url="" -c url="" | grep Name

# Czech WMS -c url=""

Download raster data from WMS server (GetMap request)

Open Street Map

g.region n=90 s=-90 w=-180 e=180 res=0:10:00 -p url="" layers=osm_auto:all output=osm format=png
# OSM Overlay WMS (can be used as an overlay for other maps) url="" layer=OSM-Overlay-WMS output=osm_overlay format=png

# TOPO-OSM-WMS url="" layer=TOPO-OSM-WMS output=topo_osm format=png

# TOPO-WMS url="" layer=TOPO-WMS output=topo 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.

Countries and coastlines url="" layers=Countries,Borders,Coastline output=countries srs=4326 format=png 

Sentinel-2 satellite cloud free global coverage

# North Carolina sample data
g.region raster=elevation -p url="" layers=s2cloudless output=sentinel2 format=png

OGC WMTS Example url="" layers=ORTHOIMAGERY.ORTHOPHOTOS output=orthophoto srs=3857 format=jpeg driver=WMTS_GRASS style=normal password="*" username="*"
Note: username, password and API key can be obtained from IGN API website

Data covering the Czech Republic url="" layers=prehledka_kraju-linie srs=4326 output=kn format=png url="" 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 requires the gdalwarp utility from the GDAL/OGR library.


SEE ALSO, r.patch, r.colors, r.composite,

See also WMS support in wxGUI.


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

Last changed: $Date: 2018-02-14 12:10:15 -0800 (Wed, 14 Feb 2018) $


Available at: source code (history)

Note: A new GRASS GIS stable version has been released: GRASS GIS 7.4, available here.
Updated manual page: here

Main index | Raster index | Topics index | Keywords index | Graphical index | Full index

© 2003-2018 GRASS Development Team, GRASS GIS 7.2.4svn Reference Manual