NAME
v.patch - Create a new vector map layer by combining other vector map layers.
KEYWORDS
vector
SYNOPSIS
v.patch
v.patch help
v.patch [-ae] input=name[,name,...] output=name [bbox=name] [--overwrite] [--verbose] [--quiet]
Flags:
- -a
- Append files to existing file (overwriting existing files must be activated)
- -e
- Copy also attribute table
- Only the table of layer 1 is currently supported
- --overwrite
- Allow output files to overwrite existing files
- --verbose
- Verbose module output
- --quiet
- Quiet module output
Parameters:
- input=name[,name,...]
- Name of input vector map(s)
- output=name
- Name for output vector map
- bbox=name
- Name for output vector map where bounding boxes of input vector maps are written to
DESCRIPTION
v.patch allows the user to combine any number of
vector map layers together to create one composite vector
map layer.
If the table structures are identical, attributes are
transferred to the new table.
NOTES
Any vectors that are duplicated among the maps being
patched together (e.g., border lines) will have to be
edited or removed after v.patch is run. Such
editing can be done automatically using
v.clean (tool=snap,break,rmdupl).
EXAMPLES
Patch together two maps with mixed feature types:
v.patch input=geology,streams out=geol_streams
Append one map to another:
g.copy vect=roads,transport
v.patch -a input=railroads output=transport --overwrite
SEE ALSO
v.clean,
v.build,
v.select,
v.overlay
AUTHORS
Dave Gerdes, U.S.Army Construction Engineering
Research Laboratory
Radim Blazek, ITC-Irst, Trento, Italy
Last changed: $Date: 2008-02-04 20:34:53 -0800 (Mon, 04 Feb 2008) $
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