BuildService: Build a WMS service description for the GDAL WMS driver.

In sorvi: sorvi - avoimen datan tyokalupakki

Description

WMS service description file is a XML file that describes required and optional information on how to retrieve an exisiting WMS raster over the web. The extent of the raster tile from the data source is defined by the extent of a SpatialPolygonsDataFrame object (no other ways of providing extent are implemented yet). Raster resolution (pixel size is also provided as a parameter (there seems to be no way to query the original resolution from the service.

Usage

  BuildService(WMS, layer, extent, resolution)

Arguments

WMS	WMS-object containing the necessary service information
layer	the name of the layer to be fetched from the data source
extent	SpatialPolygonsDataFrame object to be used to define the extent
resolution	integer value of the resolution (CRS dependent)

Value

character XML string

Note

meant for package internal use only

Author(s)

Joona Lehtomaki [e-mail]

References

http://www.gdal.org/frmt_wms.html

sorvi documentation built on May 2, 2019, 6:16 p.m.