org.j3d.renderer.aviatrix3d.nodes

Class IndexedBufferGeometry

java.lang.Object

org.j3d.aviatrix3d.SceneGraphObject

org.j3d.aviatrix3d.NodeComponent

org.j3d.aviatrix3d.Geometry

org.j3d.renderer.aviatrix3d.nodes.BufferGeometry

org.j3d.renderer.aviatrix3d.nodes.IndexedBufferGeometry

All Implemented Interfaces:

Comparable, LeafPickTarget, PickableObject, PickTarget, GeometryRenderable, Renderable

Direct Known Subclasses:

IndexedLineArray, IndexedLineStripArray, IndexedQuadArray, IndexedQuadStripArray, IndexedTriangleArray, IndexedTriangleFanArray, IndexedTriangleStripArray

public abstract class IndexedBufferGeometry
extends BufferGeometry

Base class that defines indexed geometry types.

The implementation assumes a single index is used to describe all the information needed for rendering. An index will grab the same index from vertex, normal, colour and texture arrays.

Version:

$Revision: 1.6 $

Author:

Justin Couch

Field Summary

Fields

Modifier and Type	Field and Description
protected IntBuffer	indexBuffer Buffer holding the current index list
protected int[]	indices The indices defining the geometry types.
protected int	numIndices The number of valid values to read from the array

Fields inherited from class org.j3d.renderer.aviatrix3d.nodes.BufferGeometry

ATTRIB_CLEAR, ATTRIB_MASK, attribIds, ATTRIBS, attributes, COLOR_3, COLOR_4, COLOR_CLEAR, COLOR_MASK, COLOR2, COLOR2_CLEAR, COLOR2_MASK, color2Buffer, colorBuffer, COORDINATE_2, COORDINATE_3, COORDINATE_4, COORDINATE_CLEAR, COORDINATE_MASK, EDGE_CLEAR, EDGE_MASK, EDGES, FOG, FOG_CLEAR, FOG_MASK, fogBuffer, NORMAL_CLEAR, normalBuffer, NORMALS, numCoords, numTextureArrays, numTextureSets, TEXTURE_CLEAR, TEXTURE_COORDINATE_1, TEXTURE_COORDINATE_2, TEXTURE_COORDINATE_3, TEXTURE_COORDINATE_4, TEXTURE_COORDINATE_MULTI, TEXTURE_COORDINATE_SINGLE, TEXTURE_MASK, TEXTURE_SET_AVAILABLE, TEXTURE_SET_CLEAR, textureBuffer, textureSets, textureTypes, vertexBuffer, vertexFormat, wkPolygon

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

Constructors

Constructor and Description
IndexedBufferGeometry()

Method Summary

Modifier and Type	Method and Description
protected IntBuffer	createBuffer(int size) Convenience method to allocate a NIO buffer for the vertex handling that handles floats.
void	getIndices(int[] values) Get the sizes of the valid indexs.
int	getValidIndexCount() Get the number of valid indexs that are defined for this geometry.
protected boolean	isVisible() Check to see if this geometry is making the geometry visible or not.
void	setIndices(int[] indexList, int num) Set the number of valid indexs to use.

Methods inherited from class org.j3d.renderer.aviatrix3d.nodes.BufferGeometry

clearVertexState, getColors, getFogCoordinates, getNormals, getSecondaryColors, getTextureCoordinates, getValidVertexCount, getVertexType, getVertices, initPolygonDetails, is2D, ray3DQuadChecked, ray3DTriangleChecked, recomputeBounds, setAttributes, setAttributes, setAttributes, setAttributes, setAttributes, setColors, setFogCoordinates, setLive, setNormals, setSecondaryColors, setTextureCoordinates, setTextureCoordinates, setTextureCoordinates, setTextureSetMap, setTextureSetMap, setValidVertexCount, setVertexState, setVertices, setVertices, updateBounds

Methods inherited from class org.j3d.aviatrix3d.Geometry

addParent, boundsChanged, checkPickMask, getBounds, getPickableBounds, getPickMask, getPickTargetType, hasTransparency, markBoundsDirty, 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, setUpdateHandler, setUserData

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.j3d.aviatrix3d.rendering.GeometryRenderable

hasTransparency, render

Methods inherited from interface java.lang.Comparable

compareTo

Field Detail

indices

protected int[] indices

The indices defining the geometry types. A reference to the user-provided array. The current values are kept in the accompanying IntBuffer instance.

numIndices

protected int numIndices

The number of valid values to read from the array

indexBuffer

protected IntBuffer indexBuffer

Buffer holding the current index list

Constructor Detail

IndexedBufferGeometry

public IndexedBufferGeometry()

Method Detail

isVisible

protected boolean isVisible()

Check to see if this geometry is making the geometry visible or not. Returns true if the defined number of coordinates and indices are both non-zero.

Overrides:

isVisible in class BufferGeometry

Returns:

true when the geometry is visible

setIndices

public void setIndices(int[] indexList,
                       int num)
                throws InvalidWriteTimingException

Set the number of valid indexs to use. A check is performed to make sure that the number of vertices high enough to support the total of all the index counts so make sure to call setVertex() with the required array length before calling this method. Each index must be a minumum length of three.

Parameters:

indexList - The array of indices to set

num - The number of valid items to read from the array

Throws:

IllegalArgumentException - Invalid total index count or individual index count < 3

InvalidWriteTimingException - An attempt was made to write outside of the NodeUpdateListener bounds changed callback method

getValidIndexCount

public int getValidIndexCount()

Get the number of valid indexs that are defined for this geometry.

Returns:

a positive number

getIndices

public void getIndices(int[] values)

Get the sizes of the valid indexs. The passed array must be big enough to contain all the indexs.

Parameters:

values - An array to copy the index values into

createBuffer

protected IntBuffer createBuffer(int size)

Convenience method to allocate a NIO buffer for the vertex handling that handles floats.

Parameters:

size - The number of floats to have in the array