ogrlineref(1) ogrlineref


ogrlineref [--help-general] [-progress] [-quiet]
[-f format_name] [[-dsco NAME=VALUE] ...] [[-lco NAME=VALUE]...]
[-l src_line_datasource_name] [-ln layer_name] [-lf field_name]
[-p src_repers_datasource_name] [-pn layer_name] [-pm pos_field_name] [-pf field_name]
[-r src_parts_datasource_name] [-rn layer_name]
[-o dst_datasource_name] [-on layer_name] [-of field_name] [-s step]
[-get_pos] [-x long] [-y lat]
[-get_coord] [-m position]
[-get_subline] [-mb position] [-me position]


The ogrlineref program can be used to create a linear reference - a file containing a segments of special length (e.g. 1 km in reference units) and get coordinates, linear referenced distances or sublines (subpaths) from this file. The utility not required the M or Z values in geometry. The results can be stored in any OGR supported format. Also some information is written to the stdout.

Show the usage.
Show progress.
Suppress all messages except errors and results.
-f format_name:
Select an output format name. The default is to create a shapefile.
Dataset creation option (format specific)
Layer creation option (format specific)
Create the linear reference file (linestring of parts).
The path to input linestring datasource (e.g. the road)
The layer name in datasource
The field name of unique values to separate the input lines (e.g. the set of roads)
The path to linear references points (e.g. the road mile-stones)
The layer name in datasource
The field name of distances along path (e.g. mile-stones values)
The field name of unique values to map input reference points to lines
The path to linear reference file
The layer name in datasource
The path to output linear reference file (linestring datasource)
The layer name in datasource
The field name for storing the unique values of input lines
The part size in linear units
Return linear referenced position for input X, Y
Input X coordinate
Input Y coordinate
Return point on path for input linear distance
The input linear distance
Return the portion of the input path from and to input linear positions
The input begin linear distance
The input end linear distance


This example would create a shapefile (parts.shp) containing a data needed for linear referencing (1 km parts):

% ogrlineref -create -l roads.shp -p references.shp -pm dist -o parts.shp -s 1000 -progress


Dmitry Baryshnikov [email protected]