com.revolsys.jts.linearref

Class LengthLocationMap

java.lang.Object

com.revolsys.jts.linearref.LengthLocationMap

public class LengthLocationMap
extends Object

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.

Constructor Summary

Constructors

Constructor and Description
LengthLocationMap(Geometry linearGeom)

Method Summary

Methods

Modifier and Type	Method and Description
static double	getLength(Geometry linearGeom, LinearLocation loc) Computes the length for a given LinearLocation on a linear Geometry.
double	getLength(LinearLocation loc)
LinearLocation	getLocation(double length) Compute the LinearLocation corresponding to a length.
LinearLocation	getLocation(double length, boolean resolveLower) Compute the LinearLocation corresponding to a length.
static LinearLocation	getLocation(Geometry linearGeom, double length) Computes the LinearLocation for a given length along a linear Geometry.
static LinearLocation	getLocation(Geometry linearGeom, double length, boolean resolveLower) Computes the LinearLocation for a given length along a linear Geometry, with control over how the location is resolved at component endpoints.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

LengthLocationMap

public LengthLocationMap(Geometry linearGeom)

Method Detail

getLength

public static double getLength(Geometry linearGeom,
               LinearLocation loc)

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

public static LinearLocation getLocation(Geometry linearGeom,
                         double length)

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

getLocation

public static LinearLocation getLocation(Geometry linearGeom,
                         double length,
                         boolean resolveLower)

Computes the LinearLocation for a given length along a linear Geometry, with control over how the location is resolved at component endpoints.

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

getLength

public double getLength(LinearLocation loc)

getLocation

public LinearLocation getLocation(double length)

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

public LinearLocation getLocation(double length,
                         boolean resolveLower)

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 or highest possible location value, depending on the value of resolveLower

Parameters:

length - the length index

Returns:

the corresponding LinearLocation