v.lrs.label.1grass man page

v.lrs.label — Creates stationing from input lines, and linear reference system.

Keywords

vector, linear reference system, network

Synopsis

v.lrs.label
v.lrs.label --help
v.lrs.label input=name output=name [llayer=string] [rsdriver=string] [rsdatabase=string] rstable=string [labels=string] [offset=string[,string,...]] [xoffset=float] [yoffset=float] [reference=string] [font=string] [size=integer] [color=name] [width=integer] [highlight_color=name] [highlight_width=integer] [bgcolor=name] [border=name] [opaque=string] [--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

input=name [required]
Name of input vector map
Input vector map containing lines
output=name [required]
Output vector map where stationing will be written
llayer=string
Layer number or name
Line layer
Default: 1
rsdriver=string
Driver name for reference system table
Options: mesql, pg, dbf, sqlite, odbc, ogr, mysql
Default: sqlite
rsdatabase=string
Database name for reference system table
Default: $GISDBASE/$LOCATION_NAME/$MAPSET/sqlite/sqlite.db
rstable=string [required]
Name of the reference system table
labels=string
Label file
offset=string[,string,...]
PM left, MP right, stationing left, stationing right offset
Default: 50,100,25,25
xoffset=float
Offset label in label x-direction in map units
Default: 25
yoffset=float
Offset label in label y-direction in map units
Default: 5
reference=string
Reference position
Options: center, left, right, upper, lower
Default: center
font=string
Font
Default: standard
size=integer
Label size (in map-units)
Options: 1-1000
Default: 100
color=name
Text color
Either a standard color name or R:G:B triplet
Default: black
width=integer
Line width of text
Only for d.label output
Options: 1-100
Default: 1
highlight_color=name
Highlight color for text
Either a standard color name, R:G:B triplet, or "none"
Default: none
highlight_width=integer
Line width of highlight color
Only for d.label output
Options: 0-100
Default: 0
bgcolor=name
Background color
Either a standard color name, R:G:B triplet, or "none"
Default: none
border=name
Border color
Either a standard color name, R:G:B triplet, or "none"
Default: none
opaque=string
Opaque to vector
Only relevant if background color is selected
Options: yes, no
Default: yes

Description

v.lrs.label generates LRS labels for pretty-printing of a LRS. This example is written for the Spearfish dataset (it continues the example from v.lrs.create).

v.lrs.label route_lrs rstable=route_lrs output=route_lrs_labels \
            labels=labels col=red size=50 xoffset=100
g.region vector=route_lrs n=n+100 s=s-100 -p
d.erase
d.vect route_lrs
d.vect route_lrs_labels col=grey type=line
d.vect busstops disp=attr attr=cat size=10 bg=white lcol=green yref=bottom
d.vect busstops icon=basic/circle fcol=green
d.labels labels

See Also

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

Author

Radim Blazek, ITC-irst/MPA Solutions
Documentation update (based on above journal article and available fragments): Markus Neteler

Last changed: $Date: 2014-12-19 22:55:37 +0100 (Fri, 19 Dec 2014) $

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