com.revolsys.jts.operation.overlay.validate

Class OverlayResultValidator

java.lang.Object

com.revolsys.jts.operation.overlay.validate.OverlayResultValidator

public class OverlayResultValidator
extends Object

Validates that the result of an overlay operation is geometrically correct, within a determined tolerance. Uses fuzzy point location to find points which are definitely in either the interior or exterior of the result geometry, and compares these results with the expected ones.

This algorithm is only useful where the inputs are polygonal. This is a heuristic test, and may return false positive results (I.e. it may fail to detect an invalid result.) It should never return a false negative result, however (I.e. it should never report a valid result as invalid.)

Version:

1.7

Author:

Martin Davis

See Also:

OverlayOp

Constructor Summary

Constructors

Constructor and Description
OverlayResultValidator(Geometry a, Geometry b, Geometry result)

Method Summary

Methods

Modifier and Type	Method and Description
Point	getInvalidLocation()
static boolean	isValid(Geometry a, Geometry b, int overlayOp, Geometry result)
boolean	isValid(int overlayOp)

Methods inherited from class java.lang.Object

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

Constructor Detail

OverlayResultValidator

public OverlayResultValidator(Geometry a,
                      Geometry b,
                      Geometry result)

Method Detail

isValid

public static boolean isValid(Geometry a,
              Geometry b,
              int overlayOp,
              Geometry result)

getInvalidLocation

public Point getInvalidLocation()

isValid

public boolean isValid(int overlayOp)