v.area.weigh - GRASS GIS manual

NAME

v.area.weigh - Rasterize vector areas using weights

KEYWORDS

SYNOPSIS

v.area.weigh

v.area.weigh --help

v.area.weigh vector=name [layer=string] [column=name] weight=name output=name [--overwrite] [--help] [--verbose] [--quiet] [--ui]

Flags:

--overwrite: Allow output files to overwrite existing files
--help: Print usage summary
--verbose: Verbose module output
--quiet: Quiet module output
--ui: Force launching GUI dialog

Parameters:

vector=name [required]: Name of input vector map; Or data source for direct OGR access
layer=string: Layer number or name; Vector features can have category values in different layers. This number determines which layer to use. When used with direct OGR access this is the layer name.; Default: 1
column=name: Name of attribute column to use as area values (must be numeric)
weight=name [required]: Name of input raster with weights per cell
output=name [required]: Name for output raster map

DESCRIPTION
SEE ALSO
AUTHOR

DESCRIPTION

v.area.weigh rasterizes vector areas using known cell weights. In the output raster, the sum off all cells falling into a given area is identical to the area attribute value used to rasterize the area.

v.area.weigh can add spatial detail to larger areas, if more detailed information is available from other sources. For example, population counts are typically available for administrative areas such as provinces, counties or countries. At the same time, the location of urban areas might be known and can be used to refine spatial detail using v.area.weigh.

AUTHOR

Markus Metz

SOURCE CODE

Available at: v.area.weigh source code (history)