geos::linearref::LengthLocationMap Class Reference

Computes the LinearLocation for a given length along a linear Geometry. More...

#include <LengthLocationMap.h>

Public Member Functions
	LengthLocationMap (const geom::Geometry *linearGeom)
LinearLocation	getLocation (double length, bool resolveLower) const
	Compute the LinearLocation corresponding to a length.
LinearLocation	getLocation (double length) const
	Compute the LinearLocation corresponding to a length.
double	getLength (const LinearLocation &loc) const

Static Public Member Functions
static LinearLocation	getLocation (const geom::Geometry *linearGeom, double length)
	Computes the LinearLocation for a given length along a linear Geometry.
static LinearLocation	getLocation (const geom::Geometry *linearGeom, double length, bool resolveLower)
	Computes the LinearLocation for a given length along a linear [Geometry].
static double	getLength (const geom::Geometry *linearGeom, const LinearLocation &loc)

Detailed Description

Computes the LinearLocation for a given length along a linear Geometry.

Negative lengths are measured in reverse from end of the linear geometry. Out-of-range values are clamped.

Member Function Documentation

getLength()

static double geos::linearref::LengthLocationMap::getLength ( const geom::Geometry *  linearGeom, const LinearLocation &  loc  )

static

Computes the length for a given LinearLocation on a linear Geometry.

Parameters

linearGeom	the linear geometry to use
loc	the LinearLocation index of the location

Returns

the length for the LinearLocation

getLocation() [1/4]

static LinearLocation geos::linearref::LengthLocationMap::getLocation ( const geom::Geometry *  linearGeom, double  length  )

inlinestatic

Computes the LinearLocation for a given length along a linear Geometry.

Parameters

linearGeom	the linear geometry to use
length	the length index of the location

Returns

the LinearLocation for the length

References getLocation().

Referenced by getLocation(), and getLocation().

getLocation() [2/4]

static LinearLocation geos::linearref::LengthLocationMap::getLocation ( const geom::Geometry *  linearGeom, double  length, bool  resolveLower  )

inlinestatic

Computes the LinearLocation for a given length along a linear [Geometry].

Parameters

linearGeom	the linear geometry to use
length	the length index of the location
resolveLower	if true lengths are resolved to the lowest possible index

Returns

the LinearLocation for the length

References getLocation().

getLocation() [3/4]

LinearLocation geos::linearref::LengthLocationMap::getLocation

(

double

length

)

const

Compute the LinearLocation corresponding to a length.

Negative lengths are measured in reverse from end of the linear geometry. Out-of-range values are clamped. Ambiguous indexes are resolved to the lowest possible location value.

Parameters

length

the length index

Returns

the corresponding LinearLocation

getLocation() [4/4]

LinearLocation geos::linearref::LengthLocationMap::getLocation	(	double	length,
		bool	resolveLower
	)		const

Compute the LinearLocation corresponding to a length.

Negative lengths are measured in reverse from end of the linear geometry. Out-of-range values are clamped. Ambiguous indexes are resolved to the lowest possible location value, depending on the value of resolveLower.

Parameters

length	the length index
resolveLower	if true lengths are resolved to the lowest possible index

Returns

the corresponding LinearLocation

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

• LengthLocationMap.h