org.jdelaunay.delaunay.evaluator
Class SkinnyEvaluator

java.lang.Object
  org.jdelaunay.delaunay.evaluator.SkinnyEvaluator

All Implemented Interfaces:

InsertionEvaluator

public class SkinnyEvaluator
extends Object
implements InsertionEvaluator

Evaluator used to determine if a triangle is skinny (ie if it has an angle inferior to a given value) or not.

Author:

Alexis Guéganno

Field Summary

static double

MAX_VALUE The maximum valule that can be used in a skinny evaluator.

Constructor Summary

SkinnyEvaluator(double minAngle)
Instanciate a new SkinnyEvaluator, with the given threshold angle value, in degrees.

Method Summary

boolean	evaluate(DTriangle dt) Returns true if the circumcenter of dt must be inserted.
double	getMinAngle() Get the angle that is used to determine if triangles are skinny or not.
void	setMinAngle(double minAngle) Set the minimum angle that will be used to determine if triangles are skinny, for this evaluator, or not.

Methods inherited from class java.lang.Object

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

Field Detail

MAX_VALUE

public static final double MAX_VALUE

The maximum valule that can be used in a skinny evaluator. As the Ruppert algorithm won't end for angles superior to this value, such values are forbidden.

See Also:

Constant Field Values

Constructor Detail

SkinnyEvaluator

public SkinnyEvaluator(double minAngle)

Instanciate a new SkinnyEvaluator, with the given threshold angle value, in degrees.

Parameters:

minAngle -

Throws:

IllegalArgumentException - if minAngle is greater than 32° or inferior to 0°

Method Detail

getMinAngle

public final double getMinAngle()

Get the angle that is used to determine if triangles are skinny or not.

Returns:

The angle limit, in degrees.

setMinAngle

public final void setMinAngle(double minAngle)

Set the minimum angle that will be used to determine if triangles are skinny, for this evaluator, or not.

Parameters:

minAngle - The new limit, in degrees.

Throws:

IllegalArgumentException - if minAngle is greater than 32° or inferior to 0°

evaluate

public final boolean evaluate(DTriangle dt)

Description copied from interface: InsertionEvaluator

Returns true if the circumcenter of dt must be inserted.

Specified by:

evaluate in interface InsertionEvaluator

Returns:

true if the insertion is needed.