---
name: "v.lrs.label"
section: "1grass"
platform: "linux"
package: "grass-doc"
version: "8.4.1-1"
release: "Debian 13 (Trixie)"
platforms: ["linux"]
url: "https://new.carta.tech/v.lrs.label"
---

# v.lrs.label(1grass)

Creates stationing from input lines, and linear reference system.

## NAME

**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: *dbf, mysql, odbc, ogr, pg, sqlite*\
   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

*v.lrs.create,* *v.lrs.segment,* *v.lrs.where,* *d.labels,* *v.label*

*LRS tutorial,*\
 *Introducing the Linear Reference System in GRASS*

## AUTHORS

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

## SOURCE CODE

Available at: v.lrs.label source code (history)

Accessed: Monday Feb 24 17:51:18 2025

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