com.vividsolutions.jts.precision

Class CommonBitsOp

java.lang.Object

com.vividsolutions.jts.precision.CommonBitsOp

public class CommonBitsOp
extends Object

Provides versions of Geometry spatial functions which use common bit removal to reduce the likelihood of robustness problems.

In the current implementation no rounding is performed on the reshifted result geometry, which means that it is possible that the returned Geometry is invalid. Client classes should check the validity of the returned result themselves.

Version:

1.7

Constructor Summary

Constructors

Constructor and Description
CommonBitsOp() Creates a new instance of class, which reshifts result Geometrys.
CommonBitsOp(boolean returnToOriginalPrecision) Creates a new instance of class, specifying whether the result Geometrys should be reshifted.

Method Summary

Modifier and Type	Method and Description
Geometry	buffer(Geometry geom0, double distance) Computes the buffer a geometry, using enhanced precision.
Geometry	difference(Geometry geom0, Geometry geom1) Computes the set-theoretic difference of two Geometrys, using enhanced precision.
Geometry	intersection(Geometry geom0, Geometry geom1) Computes the set-theoretic intersection of two Geometrys, using enhanced precision.
Geometry	symDifference(Geometry geom0, Geometry geom1) Computes the set-theoretic symmetric difference of two geometries, using enhanced precision.
Geometry	union(Geometry geom0, Geometry geom1) Computes the set-theoretic union of two Geometrys, using enhanced precision.

Methods inherited from class java.lang.Object

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

Constructor Detail

CommonBitsOp

public CommonBitsOp()

Creates a new instance of class, which reshifts result Geometrys.

CommonBitsOp

public CommonBitsOp(boolean returnToOriginalPrecision)

Creates a new instance of class, specifying whether the result Geometrys should be reshifted.

Parameters:

returnToOriginalPrecision -

Method Detail

intersection

public Geometry intersection(Geometry geom0,
                             Geometry geom1)

Computes the set-theoretic intersection of two Geometrys, using enhanced precision.

Parameters:

geom0 - the first Geometry

geom1 - the second Geometry

Returns:

the Geometry representing the set-theoretic intersection of the input Geometries.

union

public Geometry union(Geometry geom0,
                      Geometry geom1)

Computes the set-theoretic union of two Geometrys, using enhanced precision.

Parameters:

geom0 - the first Geometry

geom1 - the second Geometry

Returns:

the Geometry representing the set-theoretic union of the input Geometries.

difference

public Geometry difference(Geometry geom0,
                           Geometry geom1)

Computes the set-theoretic difference of two Geometrys, using enhanced precision.

Parameters:

geom0 - the first Geometry

geom1 - the second Geometry, to be subtracted from the first

Returns:

the Geometry representing the set-theoretic difference of the input Geometries.

symDifference

public Geometry symDifference(Geometry geom0,
                              Geometry geom1)

Computes the set-theoretic symmetric difference of two geometries, using enhanced precision.

Parameters:

geom0 - the first Geometry

geom1 - the second Geometry

Returns:

the Geometry representing the set-theoretic symmetric difference of the input Geometries.

buffer

public Geometry buffer(Geometry geom0,
                       double distance)

Computes the buffer a geometry, using enhanced precision.

Parameters:

geom0 - the Geometry to buffer

distance - the buffer distance

Returns:

the Geometry representing the buffer of the input Geometry.