cz.cuni.utils.math.extended
Class Triangle3D

java.lang.Object
  cz.cuni.utils.math.extended.Triangle3D

public class Triangle3D
extends java.lang.Object

Field Summary

int	hashCode
double[]	max contains maximums from vertices x, y ... indexed 0 == X, 1 == Y
double[]	min contains minimums from vertices x, y ... indexed 0 == X, 1 == Y
protected Tuple3D	orthocenter
Plane3D	plane
Vertex3D[]	vertices List of triangles vertices in normalizedOrder.
protected java.util.HashMap	verticesHM We will store vertices also in hashset allowing method equals() to be as fast as possible.

Constructor Summary

Triangle3D(Segment3D s1, Segment3D s2, Segment3D s3)

Triangle3D(Vertex3D v1, Vertex3D v2, Vertex3D v3)

Method Summary

protected int	countHashCode() If triangle is a one point ... hash code == 0 If exactly two vertices are the same ... hash code == 1 Otherwise we need to sort it according to verties' coordinates.
boolean	equals(java.lang.Object o)
Tuple3D	getOrthocenter()
Vertex3D	getVertex3D(int index)
int	hashCode()
boolean	hasVertex(Vertex3D v)
protected void	checkMinMax(Vertex3D v)
protected void	init()
protected void	initVertices(Vertex3D v1, Vertex3D v2, Vertex3D v3)
protected void	initVerticesFromEdges(Segment3D s1, Segment3D s2, Segment3D s3)
protected void	recountMinMax() Recount min / max properties.
void	recountPlane() Recounts plane equation, taking first three vertices from property 'vertices'.
void	recountPlane(Tuple3D normal) Recounts plane equation using normal provided.
protected void	setVertex(int index, Vertex3D vertex)
protected void	setVertexAndHM(int index, Vertex3D vertex)
boolean	swapVertex(Vertex3D toBeSwapped, Vertex3D newVertex)
java.lang.String	toString()

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Field Detail

vertices

public Vertex3D[] vertices

List of triangles vertices in normalizedOrder.

verticesHM

protected java.util.HashMap verticesHM

We will store vertices also in hashset allowing method equals() to be as fast as possible. Associated value is index pointing into 'vertices'.

min

public double[] min

contains minimums from vertices x, y ... indexed 0 == X, 1 == Y

max

public double[] max

contains maximums from vertices x, y ... indexed 0 == X, 1 == Y

plane

public Plane3D plane

orthocenter

protected Tuple3D orthocenter

hashCode

public final int hashCode

Constructor Detail

Triangle3D

public Triangle3D(Vertex3D v1,
                  Vertex3D v2,
                  Vertex3D v3)

Triangle3D

public Triangle3D(Segment3D s1,
                  Segment3D s2,
                  Segment3D s3)

Method Detail

init

protected void init()

initVertices

protected void initVertices(Vertex3D v1,
                            Vertex3D v2,
                            Vertex3D v3)

initVerticesFromEdges

protected void initVerticesFromEdges(Segment3D s1,
                                     Segment3D s2,
                                     Segment3D s3)

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object

countHashCode

protected int countHashCode()

If triangle is a one point ... hash code == 0 If exactly two vertices are the same ... hash code == 1 Otherwise we need to sort it according to verties' coordinates.

Returns:

hashCode

setVertexAndHM

protected void setVertexAndHM(int index,
                              Vertex3D vertex)

setVertex

protected void setVertex(int index,
                         Vertex3D vertex)

getVertex3D

public Vertex3D getVertex3D(int index)

equals

public boolean equals(java.lang.Object o)

Overrides:

equals in class java.lang.Object

hashCode

public int hashCode()

Overrides:

hashCode in class java.lang.Object

checkMinMax

protected void checkMinMax(Vertex3D v)

recountMinMax

protected void recountMinMax()

Recount min / max properties. Set min/max to Double.max/min values a do the check.

recountPlane

public void recountPlane()

Recounts plane equation, taking first three vertices from property 'vertices'.

recountPlane

public void recountPlane(Tuple3D normal)

Recounts plane equation using normal provided.

hasVertex

public boolean hasVertex(Vertex3D v)

swapVertex

public boolean swapVertex(Vertex3D toBeSwapped,
                          Vertex3D newVertex)

getOrthocenter

public Tuple3D getOrthocenter()