com.vividsolutions.jts.operation.overlay.validate

Class OffsetPointGenerator

java.lang.Object

com.vividsolutions.jts.operation.overlay.validate.OffsetPointGenerator

public class OffsetPointGenerator
extends Object

Generates points offset by a given distance from both sides of the midpoint of all segments in a Geometry. Can be used to generate probe points for determining whether a polygonal overlay result is incorrect. The input geometry may have any orientation for its rings, but setSidesToGenerate(boolean, boolean) is only meaningful if the orientation is known.

Version:

1.7

Author:

Martin Davis

Constructor Summary

Constructors

Constructor and Description
OffsetPointGenerator(Geometry g)

Method Summary

Modifier and Type	Method and Description
List	getPoints(double offsetDistance) Gets the computed offset points.
void	setSidesToGenerate(boolean doLeft, boolean doRight) Set the sides on which to generate offset points.

Methods inherited from class java.lang.Object

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

Constructor Detail

OffsetPointGenerator

public OffsetPointGenerator(Geometry g)

Method Detail

setSidesToGenerate

public void setSidesToGenerate(boolean doLeft,
                               boolean doRight)

Set the sides on which to generate offset points.

Parameters:

doLeft -

doRight -

getPoints

public List getPoints(double offsetDistance)

Gets the computed offset points.

Returns:

List