ogrlineref - Man Page

Create linear reference and provide some calculations using it.


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 for:

The ogrlineref creates 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.

-dsco <NAME=VALUE>

Dataset creation option (format specific)


Layer creation option (format specific).


Create the linear reference file (linestring of parts).

-l <src_line_datasource_name>

The path to input linestring datasource (e.g. the road)

-ln <layer_name>

The layer name in datasource

-lf <field_name>

The field name of unique values to separate the input lines (e.g. the set of roads).

-p <src_repers_datasource_name>

The path to linear references points (e.g. the road mile-stones)

-pn <layer_name>

The layer name in datasource

-pm <pos_field_name>

The field name of distances along path (e.g. mile-stones values)

-pf <field_name>

The field name of unique values to map input reference points to lines.

-r <src_parts_datasource_name>

The path to linear reference file.

-rn <layer_name>

The layer name in datasource

-o <dst_datasource_name>

The path to output linear reference file (linestring datasource)

-on <layer_name>

The layer name in datasource

-of <field_name>

The field name for storing the unique values of input lines

-s <step>

The part size in linear units


Return linear referenced position for input X, Y

-x <long>

Input X coordinate

-y <lat>

Input Y coordinate


Return point on path for input linear distance

-m <position>

The input linear distance


Return the portion of the input path from and to input linear positions.

-mb <position>

The input begin linear distance

-me <position>

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 <polimax@mail.ru>


Sep 05, 2023 GDAL