geos::linearref::ExtractLineByLocation Class Reference

Extracts the subline of a linear Geometry between two LinearLocations on the line. More...

#include <ExtractLineByLocation.h>

Public Member Functions
	ExtractLineByLocation (const geom::Geometry *line)
std::unique_ptr< geom::Geometry >	extract (const LinearLocation &start, const LinearLocation &end)
	Extracts a subline of the input. More...

Static Public Member Functions
static std::unique_ptr< geom::Geometry >	extract (const geom::Geometry *line, const LinearLocation &start, const LinearLocation &end)
	Computes the subline of a LineString between two LinearLocations on the line. More...

Detailed Description

Extracts the subline of a linear Geometry between two LinearLocations on the line.

Member Function Documentation

extract() [1/2]

static std::unique_ptr<geom::Geometry> geos::linearref::ExtractLineByLocation::extract ( const geom::Geometry *  line, const LinearLocation &  start, const LinearLocation &  end  )

static

Computes the subline of a LineString between two LinearLocations on the line.

If the start location is after the end location, the computed geometry is reversed.

Parameters

line	the line to use as the baseline
start	the start location
end	the end location

Returns

the extracted subline

Referenced by geos::linearref::LocationIndexedLine::extractLine().

extract() [2/2]

std::unique_ptr<geom::Geometry> geos::linearref::ExtractLineByLocation::extract	(	const LinearLocation &	start,
		const LinearLocation &	end
	)

Extracts a subline of the input.

If end < start the linear geometry computed will be reversed.

Parameters

start	the start location
end	the end location

Returns

a linear geometry

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The documentation for this class was generated from the following file:

• ExtractLineByLocation.h