org.j3d.renderer.aviatrix3d.geom
Class Teapot

java.lang.Object
  org.j3d.aviatrix3d.SceneGraphObject
      org.j3d.aviatrix3d.NodeComponent
          org.j3d.aviatrix3d.Geometry
              org.j3d.renderer.aviatrix3d.geom.Teapot

All Implemented Interfaces:

java.lang.Comparable, LeafPickTarget, PickableObject, PickTarget, GeometryRenderable, Renderable

public class Teapot
extends Geometry

A simple teapot that is a low-level geometry primitive.

Internally this uses the OpenGL evaluators to work through the bezier patch data for rendering. The code is liberally stolen from the GLUT source which is copyright SGI. Converted to the JOGL API methods and different calling conventions.

Version:

$Revision: 1.8 $

Author:

Justin Couch

Field Summary

Fields inherited from class org.j3d.aviatrix3d.Geometry

bounds, implicitBounds, internalUpdater, INVALID_BOUNDS, lastParentList, parentList, pickFlags, validAlpha

Fields inherited from class org.j3d.aviatrix3d.NodeComponent

lastParent, liveCount

Fields inherited from class org.j3d.aviatrix3d.SceneGraphObject

alive, LISTENER_SET_TIMING_ERR_PROP, updateHandler

Fields inherited from interface org.j3d.aviatrix3d.picking.PickableObject

COLLIDABLE_OBJECT, GENERAL_OBJECT, PROXIMITY_OBJECT, VISIBLE_OBJECT

Fields inherited from interface org.j3d.aviatrix3d.picking.PickTarget

CUSTOM_PICK_TYPE, GROUP_PICK_TYPE, LEAF_PICK_TYPE, SINGLE_PICK_TYPE

Constructor Summary

Teapot(float scale, int gridSize)
Construct a default instance of the teapot with the given scale factor.

Method Summary

int	compareTo(java.lang.Object o) Compares this object with the specified object for order.
int	compareTo(Teapot ta) Compares this object with the specified object for order.
boolean	equals(java.lang.Object o) Compare this object for equality to the given object.
boolean	equals(Teapot ta) Compares this object with the specified object to check for equivalence.
boolean	is2D() Check to see whether this shape is something that represents 2D or 3D geometry.
protected void	markBoundsDirty() Mark this node as having dirty bounds due to it's geometry having changed.
void	postRender(javax.media.opengl.GL gl) Restore all openGL state.
protected void	recomputeBounds() Internal method to recalculate the implicit bounds of this Node.
void	render(javax.media.opengl.GL gl) Issue ogl commands needed for this renderable object.
protected void	updateBounds() Update this node's bounds and then call the parent to update it's bounds.

Methods inherited from class org.j3d.aviatrix3d.Geometry

addParent, boundsChanged, checkPickMask, getBounds, getPickableBounds, getPickMask, getPickTargetType, hasTransparency, isVisible, pickBatch, pickLineRay, pickLineSegment, pickSingle, removeParent, setBounds, setPickMask

Methods inherited from class org.j3d.aviatrix3d.NodeComponent

addParent, getParents, numParents, removeParent

Methods inherited from class org.j3d.aviatrix3d.SceneGraphObject

checkForCyclicChild, checkForCyclicParent, dataChanged, getAppUpdateWriteTimingMessage, getBoundsWriteTimingMessage, getDataWriteTimingMessage, getUserData, isLive, setLive, setUpdateHandler, setUserData

Methods inherited from class java.lang.Object

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

Constructor Detail

Teapot

public Teapot(float scale,
              int gridSize)

Construct a default instance of the teapot with the given scale factor.

Parameters:

scale - The scale of the teapot to use

Method Detail

is2D

public boolean is2D()

Check to see whether this shape is something that represents 2D or 3D geometry. Pure 2D geometry is not effected by any EffectRenderable, while 3D is. Note that this can be changed depending on the type of geometry itself. A Shape3D node with an IndexedLineArray that only has 2D coordinates is as much a 2D geometry as a raster object.

Specified by:

is2D in class Geometry

Returns:

True if this is 2D geometry, false if this is 3D

render

public void render(javax.media.opengl.GL gl)

Issue ogl commands needed for this renderable object.

Parameters:

gl - The gl context to draw with

postRender

public void postRender(javax.media.opengl.GL gl)

Restore all openGL state.

Parameters:

gl - The gl context to draw with

updateBounds

protected void updateBounds()

Update this node's bounds and then call the parent to update it's bounds. Used to propogate bounds changes from the leaves of the tree to the root. A node implementation may decide when and where to tell the parent(s)s that updates are ready.

Overrides:

updateBounds in class Geometry

recomputeBounds

protected void recomputeBounds()

Internal method to recalculate the implicit bounds of this Node. By default the bounds are a point sphere, so derived classes should override this method with something better.

Specified by:

recomputeBounds in class Geometry

markBoundsDirty

protected void markBoundsDirty()

Mark this node as having dirty bounds due to it's geometry having changed.

Overrides:

markBoundsDirty in class Geometry

compareTo

public int compareTo(java.lang.Object o)
              throws java.lang.ClassCastException

Compares this object with the specified object for order. Returns a negative integer, zero, or a positive integer as this object is less than, equal to, or greater than the specified object.

Parameters:

o - The objec to be compared

Returns:

-1, 0 or 1 depending on order

Throws:

java.lang.ClassCastException - The specified object's type prevents it from being compared to this Object

equals

public boolean equals(java.lang.Object o)

Compare this object for equality to the given object.

Specified by:

equals in interface Renderable

Overrides:

equals in class java.lang.Object

Parameters:

o - The object to be compared

Returns:

True if these represent the same values

compareTo

public int compareTo(Teapot ta)

Compares this object with the specified object for order. Returns a negative integer, zero, or a positive integer as this object is less than, equal to, or greater than the specified object.

Parameters:

ta - The argument instance to be compared

Returns:

-1, 0 or 1 depending on order

equals

public boolean equals(Teapot ta)

Compares this object with the specified object to check for equivalence.

Parameters:

ta - The geometry instance to be compared

Returns:

true if the objects represent identical values