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OGRLINEREF(1) GDAL OGRLINEREF(1) NAME ogrlineref - Create linear reference and provide some calculations us- ing it. SYNOPSIS ogrlineref [--help] [--help-general] [-progress] [-quiet] [-f <format_name>] [-dsco <NAME>=<VALUE>]... [-lco <NAME>=<VALUE>]... [-create] [-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>] DESCRIPTION The ogrlineref program can be used to: • create a linear reference file from input data • return the "linear referenced" distance for the projection of the in- put coordinates (point) on the path • return the coordinates (point) on the path according to the "linear referenced" distance • return the portion of the path according to the "linear referenced" begin and end distances The ogrlineref utility creates a linear reference - a file containing segments of a certain length (e.g. 1 km in reference units.) The user can get coordinates, linear referenced distances or sublines (subpaths) from this file. The utility does not require the M or Z components in the geometry. The results can be stored in any OGR supported format. Also some information is written to the stdout. --help Show this help message and exit --help-general Gives a brief usage message for the generic GDAL commandline op- tions and exit. -progress Show progress. -quiet Suppress all messages except errors and results. -f <format_name> Select an output format name. The default is to create a shape- file. -dsco <NAME>=<VALUE> Dataset creation option (format specific) -lco <NAME>=<VALUE> Layer creation option (format specific). -create 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 -get_pos Return linear referenced position for input X, Y -x <long> Input X coordinate -y <lat> Input Y coordinate -get_coord Return point on path for input linear distance -m <position> The input linear distance -get_subline 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 EXAMPLE 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 AUTHOR Dmitry Baryshnikov <polimax@mail.ru> COPYRIGHT 1998-2025 Feb 11, 2025 OGRLINEREF(1)
NAME | SYNOPSIS | DESCRIPTION | EXAMPLE | AUTHOR | COPYRIGHT
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