geos::linearref::LengthLocationMap Class Reference

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

#include <LengthLocationMap.h>

Collaboration diagram for geos::linearref::LengthLocationMap:

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

Private Member Functions
LinearLocation	getLocationForward (double length) const
LinearLocation	resolveHigher (const LinearLocation &loc) const

Private Attributes
const geom::Geometry *	linearGeom

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.

Definition at line 38 of file LengthLocationMap.h.

Constructor & Destructor Documentation

geos::linearref::LengthLocationMap::LengthLocationMap

(

const geom::Geometry *

linearGeom

)

Referenced by getLocation().

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Member Function Documentation

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

Referenced by getLocation().

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double geos::linearref::LengthLocationMap::getLength

(

const LinearLocation &

loc

)

const

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

Definition at line 64 of file LengthLocationMap.h.

References getLocation().

Referenced by getLocation().

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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

Definition at line 82 of file LengthLocationMap.h.

References getLength(), getLocation(), and LengthLocationMap().

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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

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

LinearLocation geos::linearref::LengthLocationMap::getLocationForward ( double  length ) const

private

LinearLocation geos::linearref::LengthLocationMap::resolveHigher ( const LinearLocation &  loc ) const

private

Member Data Documentation

const geom::Geometry* geos::linearref::LengthLocationMap::linearGeom

private

Definition at line 42 of file LengthLocationMap.h.

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

• LengthLocationMap.h