threeD.raytracer.primitives
Class Triangle

java.lang.Object
  threeD.raytracer.engine.AbstractSurface
      threeD.raytracer.primitives.Triangle

All Implemented Interfaces:

ParticleGroup, Surface

public class Triangle

extends AbstractSurface

implements ParticleGroup

A Triangle object represents a triangle in 3d space.

Constructor Summary

Triangle()
Constructs a new Triangle object with all vertices at the origin that is black.

Triangle(Vector p1, Vector p2, Vector p3)
Constructs a new Triangle object with the specified vertices that is black.

Triangle(Vector p1, Vector p2, Vector p3, RGB color)
Constructs a new Triangle object with the specified vertices with the color represented by the specified RGB object.

Method Summary

Vector	getNormalAt(Vector point) Returns a Vector object that represents the vector normal to this sphere at the point represented by the specified Vector object.
double[][]	getParticleVertices()
boolean	getSmooth()
Vector[]	getVertices() Returns an array of Vector objects representing the vertices of this Triangle object.
boolean	intersect(Ray ray) Returns true if the ray represented by the specified Ray object intersects the triangle represented by this Triangle object in real space.
Intersection	intersectAt(Ray ray) Returns an Intersection object representing the points along the ray represented by the specified Ray object that intersection between the ray and the triangle represented by this Triangle object occurs.
void	setSmooth(boolean s) Sets the smooth flag which indicates if normal vectors should be interpolated.
void	setVertices(Vector p1, Vector p2, Vector p3) Sets the vertices of this Triangle object to those specified.
java.lang.String	toString()

Methods inherited from class threeD.raytracer.engine.AbstractSurface

addShader, addTexture, addTransform, calculateTransform, getColor, getColorAt, getLocation, getParent, getRotationCoefficients, getScaleCoefficients, getShadeBack, getShadeFront, getShaderSet, getSize, getTexture, getTextures, getTextureSet, getTransform, getTransform, getTransforms, removeTexture, removeTransform, setColor, setLocation, setParent, setRotationCoefficients, setScaleCoefficients, setShadeBack, setShadeFront, setShaders, setSize, setTexture, setTextures, setTransform, setTransforms, shade

Methods inherited from class java.lang.Object

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

Constructor Detail

Triangle

public Triangle()

Constructs a new Triangle object with all vertices at the origin that is black.

Triangle

public Triangle(Vector p1,
                Vector p2,
                Vector p3)

Constructs a new Triangle object with the specified vertices that is black.

Triangle

public Triangle(Vector p1,
                Vector p2,
                Vector p3,
                RGB color)

Constructs a new Triangle object with the specified vertices with the color represented by the specified RGB object.

Method Detail

setVertices

public void setVertices(Vector p1,
                        Vector p2,
                        Vector p3)

Sets the vertices of this Triangle object to those specified.

getVertices

public Vector[] getVertices()

Returns an array of Vector objects representing the vertices of this Triangle object.

setSmooth

public void setSmooth(boolean s)

Sets the smooth flag which indicates if normal vectors should be interpolated.

Parameters:

s - Value to use.

getSmooth

public boolean getSmooth()

Returns:

The smooth flag which indicates if normal vectors should be interpolated.

getParticleVertices

public double[][] getParticleVertices()

Specified by:

getParticleVertices in interface ParticleGroup

See Also:

ParticleGroup.getParticleVertices()

getNormalAt

public Vector getNormalAt(Vector point)

Returns a Vector object that represents the vector normal to this sphere at the point represented by the specified Vector object.

Specified by:

getNormalAt in interface Surface

intersect

public boolean intersect(Ray ray)

Returns true if the ray represented by the specified Ray object intersects the triangle represented by this Triangle object in real space.

Specified by:

intersect in interface Surface

intersectAt

public Intersection intersectAt(Ray ray)

Returns an Intersection object representing the points along the ray represented by the specified Ray object that intersection between the ray and the triangle represented by this Triangle object occurs.

Specified by:

intersectAt in interface Surface

toString

public java.lang.String toString()