Homepage > Man Pages > Category > General Commands
Homepage > Man Pages > Name > V

v.lrs.segment

man page of v.lrs.segment

v.lrs.segment: Creates points/segments from input lines, linear reference system and positions read from stdin or a file.

NAME
v.lrs.segment - Creates points/segments from input lines, linear reference system and positions read from stdin or a file.

KEYWORDS

vector, LRS, networking

SYNOPSIS

v.lrs.segment v.lrs.segment help v.lrs.segment input=name output=name [llayer=integer] [rsdriver=string] [rsdatabase=string] rstable=string [file=name] [--overwrite] [--verbose] [--quiet] Flags: --overwrite Allow output files to overwrite existing files --verbose Verbose module output --quiet Quiet module output Parameters: input=name Input vector map containing lines output=name Output vector map where segments will be written llayer=integer Layer number Line layer Default: 1 rsdriver=string Driver name for reference system table Default: dbf rsdatabase=string Database name for reference system table Default: $GISDBASE/$LOCATION_NAME/$MAPSET/dbf/ rstable=string Name of the reference system table file=name Name of file containing segment rules. If not given, read from stdin.

DESCRIPTION

v.lrs.segment creates points/segments from input lines, linear reference system and positions read from standard in or a file. The format is as follows: P <point_id> <line_id> <milepost>+<offset> [<;side offset>;] L <segment_id> <line_id> <milepost>+<offset> <;milepost>;+<;offset>; [<;side offset>;]

NOTES

For more information and examples see the help page for v.lrs.segment's sister module, v.segment.
EXAMPLE
This example is written for the Spearfish dataset (it continues the example from v.lrs.create). In this example, the 'route_lrs' shall be extended for a new position (point) along the LRS after bus stop 4: # new point on LRS echo "P 7 22 4+180" | v.lrs.segment route_lrs out=route_lrs_new rstable=route_lrs g.region vect=route_lrs n=n+100 s=s-100 -p d.erase # existing LRS d.vect route_lrs d.vect busstops disp=attr attr=cat size=10 bg=white lcol=blue yref=bottom d.vect busstops icon=basic/circle fcol=blue db.select route_lrs # show modified map d.vect route_lrs_new col=red
TODO
Figure out how to merge result into existing LRS map and table.

SEE ALSO

LRS tutorial, Introducing the Linear Reference System in GRASS, v.lrs.create, v.lrs.where, v.lrs.label, v.segment

AUTHOR

Radim Blazek Last changed: $Date: 2007-07-05 16:05:39 +0200 (Thu, 05 Jul 2007) $ Full index (C) 2003-2010 GRASS Development Team V.LRS.SEGMENT(1)
 
 
 

Copyright © 2011–2018 by topics-of-interest.com . All rights reserved. Hosted by all-inkl.
Contact · Imprint · Privacy

Page generated in 22.49ms.

roboter.name | Website Promotion | amazing-wings.de