javax.media.j3d
Class GeometryStripArray

java.lang.Object
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  +--javax.media.j3d.SceneGraphObject
        |
        +--javax.media.j3d.NodeComponent
              |
              +--javax.media.j3d.Geometry
                    |
                    +--javax.media.j3d.GeometryArray
                          |
                          +--javax.media.j3d.GeometryStripArray

Direct Known Subclasses:

LineStripArray, TriangleFanArray, TriangleStripArray

public abstract class GeometryStripArray

extends GeometryArray

The GeometryStripArray object is an abstract class that is extended for a set of GeometryArray strip primitives. These include LINE_STRIP, TRIANGLE_STRIP, and TRIANGLE_FAN. In addition to specifying the array of vertex elements, which is inherited from GeometryArray, the GeometryStripArray class specifies the number of strips and an array of per-strip vertex counts that specify where the separate strips appear in the vertex array.

Field Summary

Fields inherited from class javax.media.j3d.GeometryArray

ALLOW_COLOR_READ, ALLOW_COLOR_WRITE, ALLOW_COORDINATE_READ, ALLOW_COORDINATE_WRITE, ALLOW_COUNT_READ, ALLOW_COUNT_WRITE, ALLOW_FORMAT_READ, ALLOW_NORMAL_READ, ALLOW_NORMAL_WRITE, ALLOW_REF_DATA_READ, ALLOW_REF_DATA_WRITE, ALLOW_TEXCOORD_READ, ALLOW_TEXCOORD_WRITE, BY_REFERENCE, COLOR_3, COLOR_4, COORDINATES, INTERLEAVED, NORMALS, TEXTURE_COORDINATE_2, TEXTURE_COORDINATE_3, TEXTURE_COORDINATE_4, USE_COORD_INDEX_ONLY, USE_NIO_BUFFER

Fields inherited from class javax.media.j3d.Geometry

ALLOW_INTERSECT

Constructor Summary

GeometryStripArray(int vertexCount, int vertexFormat, int[] stripVertexCounts)
Constructs an empty GeometryStripArray object with the specified number of vertices, vertex format, and array of per-strip vertex counts.

GeometryStripArray(int vertexCount, int vertexFormat, int texCoordSetCount, int[] texCoordSetMap, int[] stripVertexCounts)
Constructs an empty GeometryStripArray object with the specified number of vertices, vertex format, number of texture coordinate sets, texture coordinate mapping array, and array of per-strip vertex counts.

Method Summary

int	getNumStrips() Get number of strips in the GeometryStripArray.
void	getStripVertexCounts(int[] stripVertexCounts) Get a list of vertexCounts for each strip.
void	setStripVertexCounts(int[] stripVertexCounts) Sets the array of strip vertex counts.
void	setValidVertexCount(int validVertexCount) This method is not supported for geometry strip arrays.

Methods inherited from class javax.media.j3d.GeometryArray

getColor, getColor, getColor, getColor, getColor, getColor, getColorRef3b, getColorRef3f, getColorRef4b, getColorRef4f, getColorRefBuffer, getColorRefByte, getColorRefFloat, getColors, getColors, getColors, getColors, getColors, getColors, getCoordinate, getCoordinate, getCoordinate, getCoordinate, getCoordinates, getCoordinates, getCoordinates, getCoordinates, getCoordRef3d, getCoordRef3f, getCoordRefBuffer, getCoordRefDouble, getCoordRefFloat, getInitialColorIndex, getInitialCoordIndex, getInitialNormalIndex, getInitialTexCoordIndex, getInitialVertexIndex, getInterleavedVertexBuffer, getInterleavedVertices, getNormal, getNormal, getNormalRef3f, getNormalRefBuffer, getNormalRefFloat, getNormals, getNormals, getTexCoordRef2f, getTexCoordRef3f, getTexCoordRefBuffer, getTexCoordRefFloat, getTexCoordSetCount, getTexCoordSetMap, getTexCoordSetMapLength, getTextureCoordinate, getTextureCoordinate, getTextureCoordinate, getTextureCoordinate, getTextureCoordinate, getTextureCoordinate, getTextureCoordinate, getTextureCoordinates, getTextureCoordinates, getTextureCoordinates, getTextureCoordinates, getTextureCoordinates, getTextureCoordinates, getTextureCoordinates, getValidVertexCount, getVertexCount, getVertexFormat, setColor, setColor, setColor, setColor, setColor, setColor, setColorRef3b, setColorRef3f, setColorRef4b, setColorRef4f, setColorRefBuffer, setColorRefByte, setColorRefFloat, setColors, setColors, setColors, setColors, setColors, setColors, setColors, setColors, setColors, setColors, setColors, setColors, setCoordinate, setCoordinate, setCoordinate, setCoordinate, setCoordinates, setCoordinates, setCoordinates, setCoordinates, setCoordinates, setCoordinates, setCoordinates, setCoordinates, setCoordRef3d, setCoordRef3f, setCoordRefBuffer, setCoordRefDouble, setCoordRefFloat, setInitialColorIndex, setInitialCoordIndex, setInitialNormalIndex, setInitialTexCoordIndex, setInitialVertexIndex, setInterleavedVertexBuffer, setInterleavedVertices, setNormal, setNormal, setNormalRef3f, setNormalRefBuffer, setNormalRefFloat, setNormals, setNormals, setNormals, setNormals, setTexCoordRef2f, setTexCoordRef3f, setTexCoordRefBuffer, setTexCoordRefFloat, setTextureCoordinate, setTextureCoordinate, setTextureCoordinate, setTextureCoordinate, setTextureCoordinate, setTextureCoordinate, setTextureCoordinate, setTextureCoordinates, setTextureCoordinates, setTextureCoordinates, setTextureCoordinates, setTextureCoordinates, setTextureCoordinates, setTextureCoordinates, setTextureCoordinates, setTextureCoordinates, setTextureCoordinates, setTextureCoordinates, setTextureCoordinates, setTextureCoordinates, setTextureCoordinates, updateData

Methods inherited from class javax.media.j3d.NodeComponent

cloneNodeComponent, cloneNodeComponent, duplicateNodeComponent, duplicateNodeComponent, getDuplicateOnCloneTree, setDuplicateOnCloneTree

Methods inherited from class javax.media.j3d.SceneGraphObject

clearCapability, clearCapabilityIsFrequent, duplicateSceneGraphObject, getCapability, getCapabilityIsFrequent, getUserData, isCompiled, isLive, setCapability, setCapabilityIsFrequent, setUserData, updateNodeReferences

Methods inherited from class java.lang.Object

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

Constructor Detail

GeometryStripArray

public GeometryStripArray(int vertexCount,
                          int vertexFormat,
                          int[] stripVertexCounts)

Constructs an empty GeometryStripArray object with the specified number of vertices, vertex format, and array of per-strip vertex counts.

Parameters:

vertexCount - the number of vertex elements in this array

vertexFormat - a mask indicating which components are present in each vertex. This is specified as one or more individual flags that are bitwise "OR"ed together to describe the per-vertex data. The flags include: COORDINATES, to signal the inclusion of vertex positions--always present; NORMALS, to signal the inclusion of per vertex normals; one of COLOR_3, COLOR_4, to signal the inclusion of per vertex colors (without or with color information); and one of TEXTURE_COORDINATE_2 or TEXTURE_COORDINATE_3, to signal the inclusion of per-vertex texture coordinates 2D or 3D.

stripVertexCounts - array that specifies the count of the number of vertices for each separate strip. The length of this array is the number of separate strips. The sum of the elements in this array defines the total number of valid vertices that are rendered (validVertexCount).

Throws:

java.lang.IllegalArgumentException - if validVertexCount > vertexCount

GeometryStripArray

public GeometryStripArray(int vertexCount,
                          int vertexFormat,
                          int texCoordSetCount,
                          int[] texCoordSetMap,
                          int[] stripVertexCounts)

Constructs an empty GeometryStripArray object with the specified number of vertices, vertex format, number of texture coordinate sets, texture coordinate mapping array, and array of per-strip vertex counts.

Parameters:

vertexCount - the number of vertex elements in this array

vertexFormat - a mask indicating which components are present in each vertex. This is specified as one or more individual flags that are bitwise "OR"ed together to describe the per-vertex data. The flags include: COORDINATES, to signal the inclusion of vertex positions--always present; NORMALS, to signal the inclusion of per vertex normals; one of COLOR_3, COLOR_4, to signal the inclusion of per vertex colors (without or with color information); and one of TEXTURE_COORDINATE_2 or TEXTURE_COORDINATE_3, to signal the inclusion of per-vertex texture coordinates 2D or 3D.

texCoordSetCount - the number of texture coordinate sets in this GeometryArray object. If vertexFormat does not include one of TEXTURE_COORDINATE_2 or TEXTURE_COORDINATE_3, the texCoordSetCount parameter is not used.

texCoordSetMap - an array that maps texture coordinate sets to texture units. The array is indexed by texture unit number for each texture unit in the associated Appearance object. The values in the array specify the texture coordinate set within this GeometryArray object that maps to the corresponding texture unit. All elements within the array must be less than texCoordSetCount. A negative value specifies that no texture coordinate set maps to the texture unit corresponding to the index. If there are more texture units in any associated Appearance object than elements in the mapping array, the extra elements are assumed to be -1. The same texture coordinate set may be used for more than one texture unit. Each texture unit in every associated Appearance must have a valid source of texture coordinates: either a non-negative texture coordinate set must be specified in the mapping array or texture coordinate generation must be enabled. Texture coordinate generation will take precedence for those texture units for which a texture coordinate set is specified and texture coordinate generation is enabled. If vertexFormat does not include one of TEXTURE_COORDINATE_2 or TEXTURE_COORDINATE_3, the texCoordSetMap array is not used.

stripVertexCounts - array that specifies the count of the number of vertices for each separate strip. The length of this array is the number of separate strips. The sum of the elements in this array defines the total number of valid vertices that are rendered (validVertexCount).

Throws:

java.lang.IllegalArgumentException - if validVertexCount > vertexCount

Since:

Java 3D 1.2

Method Detail

getNumStrips

public int getNumStrips()

Get number of strips in the GeometryStripArray.

Returns:

numStrips number of strips

setStripVertexCounts

public void setStripVertexCounts(int[] stripVertexCounts)

Sets the array of strip vertex counts. The length of this array is the number of separate strips. The elements in this array specify the number of vertices for each separate strip. The sum of the elements in this array defines the total number of valid vertices that are rendered (validVertexCount).

Parameters:

stripVertexCounts - array that specifies the count of the number of vertices for each separate strip.

Throws:

java.lang.IllegalArgumentException - if any of the following are true:

initialVertexIndex + validVertexCount > vertexCount,
initialCoordIndex + validVertexCount > vertexCount,
initialColorIndex + validVertexCount > vertexCount,
initialNormalIndex + validVertexCount > vertexCount,
initialTexCoordIndex + validVertexCount > vertexCount

java.lang.ArrayIndexOutOfBoundsException - if the geometry data format is BY_REFERENCE and any the following are true for non-null array references:

CoordRef.length < num_words * (initialCoordIndex + validVertexCount)
ColorRef.length < num_words * (initialColorIndex + validVertexCount)
NormalRef.length < num_words * (initialNormalIndex + validVertexCount)
TexCoordRef.length < num_words * (initialTexCoordIndex + validVertexCount)

where num_words depends on which variant of setArrayRef is used.

Since:

Java 3D 1.3

getStripVertexCounts

public void getStripVertexCounts(int[] stripVertexCounts)

Get a list of vertexCounts for each strip. The list is copied into the specified array. The array must be large enough to hold all of the ints.

Parameters:

stripVertexCounts - an array that will receive vertexCounts

setValidVertexCount

public void setValidVertexCount(int validVertexCount)

This method is not supported for geometry strip arrays. The sum of the elements in the strip vertex counts array defines the valid vertex count.

Overrides:

setValidVertexCount in class GeometryArray

Parameters:

validVertexCount - the new valid vertex count.

Throws:

java.lang.UnsupportedOperationException - this method is not supported

Since:

Java 3D 1.3