objects
Class Intersection

java.lang.Object
  objects.Object
      objects.Intersection

All Implemented Interfaces:

IObject

Direct Known Subclasses:

Box, Cone, Lens, Tube

public class Intersection
extends Object

Field Summary

Fields inherited from class objects.Object

trans

Constructor Summary

Intersection()
constructor

Method Summary

void	addObject(IObject o) adds an object to the list
void	assignMap(Map bumpmap_)
void	assignMaterial(IMaterial material) assign a global material, so that all sub-objects have the same material should be used when all objects have been placed in the intersection
IntersectionInfo	calcIntersection(Ray ray) calculates the intersection with an ray
void	calculateTextureCoordinates(IntersectionInfo ri) calculates the coordinates at ri.nextPosition
IObject	getCopy()
boolean	isInside(Point3D p)
Vector3D	normal(Point3D p) calculate normal via gradient
double	q(Point3D p) calculate the value of the quadric at point p
void	transform(TransformationMatrix4x4 m) transforms the object with the matrix m

Methods inherited from class objects.Object

getArea, getMap, getMaterial, getTransformationMatrix, move, rotate, rotateAroundX, rotateAroundY, rotateAroundZ, scale, scale, setTransformationMatrix, UniformRandomPoint

Methods inherited from class java.lang.Object

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

Constructor Detail

Intersection

public Intersection()

constructor

Method Detail

addObject

public void addObject(IObject o)

adds an object to the list

Parameters:

o - the object too add

calcIntersection

public IntersectionInfo calcIntersection(Ray ray)

Description copied from interface: IObject

calculates the intersection with an ray

Returns:

the intersection info

isInside

public boolean isInside(Point3D p)

Returns:

is the point inside the object

normal

public Vector3D normal(Point3D p)

Description copied from interface: IObject

calculate normal via gradient

Parameters:

p - the point

Returns:

normal at p

transform

public void transform(TransformationMatrix4x4 m)

Description copied from interface: IObject

transforms the object with the matrix m

Parameters:

m - the transformation matrix

assignMaterial

public void assignMaterial(IMaterial material)

assign a global material, so that all sub-objects have the same material should be used when all objects have been placed in the intersection

Specified by:

assignMaterial in interface IObject

Overrides:

assignMaterial in class Object

Parameters:

material -

q

public double q(Point3D p)

Description copied from interface: IObject

calculate the value of the quadric at point p

Parameters:

p - point

Returns:

the value at point p, q(p)<=0 -> inside

calculateTextureCoordinates

public void calculateTextureCoordinates(IntersectionInfo ri)

Description copied from interface: IObject

calculates the coordinates at ri.nextPosition

Parameters:

ri - intersection information

getCopy

public IObject getCopy()

Returns:

the area of the object

assignMap

public void assignMap(Map bumpmap_)

Specified by:

assignMap in interface IObject

Overrides:

assignMap in class Object

Parameters:

bumpmap_ - the bump or normal map