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Class com.oroinc.yaray.Disc

java.lang.Object
   |
   +----com.oroinc.yaray.WorldObject
           |
           +----com.oroinc.yaray.Disc

public class Disc

extends WorldObject

Copyright © 1996, 1997 Original Reusable Objects, Inc. All rights reserved.

Author:

Daniel F. Savarese

Disc(GeometricVector, Point, float, Pigment, Finish)

Creates a Disc object with the given characteristics.

getColor(World, Ray, Color)

Given a world description and the ray that intersects the disc, returns the color of the disc at the point of intersection.

intersect(IntersectionRay)

Determines if ray intersects disc.

  public Disc(GeometricVector normal,
              Point center,
              float radius,
              Pigment pigment,
              Finish finish)

Creates a Disc object with the given characteristics.

Parameters:

normal - The normal of the disc surface.

center - The center of the disc.

radius - The radius of the disc.

pigment - The pigment of the disc.

finish - The finish of the disc.

  public boolean intersect(IntersectionRay ray)

Determines if ray intersects disc. If it does, checks that point of intersection is closer to origin of ray than any previous point of intersection. If it is closer, returns true, if not, returns false.

Parameters:

ray - Ray to be tested for intersection.

Returns:

true If ray intersects disc and is closer to origin than any previous point of intersection, false otherwise.

Overrides:

intersect in class WorldObject

  public void getColor(World world,
                       Ray intersection,
                       Color colorResult)

Given a world description and the ray that intersects the disc, returns the color of the disc at the point of intersection.

Parameters:

world - The world containing the disc.

intersection - The current ray being traced.

colorResult - The color at the point of intersection if any.

Overrides:

getColor in class WorldObject

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