com.revolsys.jts.operation.buffer.validate

Class BufferDistanceValidator

java.lang.Object

com.revolsys.jts.operation.buffer.validate.BufferDistanceValidator

public class BufferDistanceValidator
extends Object

Validates that a given buffer curve lies an appropriate distance from the input generating it. Useful only for round buffers (cap and join). Can be used for either positive or negative distances.

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.)

Author:

mbdavis

Constructor Summary

Constructors

Constructor and Description
BufferDistanceValidator(Geometry input, double bufDistance, Geometry result)

Method Summary

Methods

Modifier and Type	Method and Description
Geometry	getErrorIndicator() Gets a geometry which indicates the location and nature of a validation failure.
Point	getErrorLocation()
String	getErrorMessage()
boolean	isValid()

Methods inherited from class java.lang.Object

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

Constructor Detail

BufferDistanceValidator

public BufferDistanceValidator(Geometry input,
                       double bufDistance,
                       Geometry result)

Method Detail

getErrorIndicator

public Geometry getErrorIndicator()

Gets a geometry which indicates the location and nature of a validation failure.

The indicator is a line segment showing the location and size of the distance discrepancy.

Returns:

a geometric error indicator or null if no error was found

getErrorLocation

public Point getErrorLocation()

getErrorMessage

public String getErrorMessage()

isValid

public boolean isValid()