org.xith3d.scenegraph.primitives
Class GeomFactory

java.lang.Object
  org.xith3d.scenegraph.primitives.GeomFactory

public class GeomFactory
extends java.lang.Object

Geometry Utility class.

Constructor Summary

GeomFactory()

Method Summary

protected static int	calculateFeatures(org.openmali.vecmath2.Tuple3f[] coords, org.openmali.vecmath2.Vector3f[] normals, org.openmali.vecmath2.Colorf[] colors, org.openmali.vecmath2.TexCoord2f[] texCoords2, org.openmali.vecmath2.TexCoord3f[] texCoords3) Calculates the GeometryArray features.
static GeometryConstruct	convertGeometryConstructITSA2ITA(GeometryConstruct gcITSA) Converts a GeometryConstruct made for IndexedTriangleStripArray to one made for IndexedTriangleArrays.
static GeometryConstruct	convertGeometryConstructITSA2TA(GeometryConstruct gcITSA) Converts a GeometryConstruct made for IndexedTriangleStripArray to one made for TriangleArrays.
static GeometryConstruct	convertGeometryConstructITSA2TSA(GeometryConstruct gcITSA) Converts a GeometryConstruct made for IndexedTriangleStripArray to one made for TriangleStripArrays.
protected static TriangleArray	createFullFeaturedTriangleArray(GeometryConstruct[] geoms) Creates the full-featured TriangleArray.
static TriangleArray	createFullFeaturedTriangleArray(org.openmali.vecmath2.Tuple3f[] vertices, org.openmali.vecmath2.Vector3f[] normals, org.openmali.vecmath2.Colorf[] colors, org.openmali.vecmath2.TexCoord2f[] texCoords2, int features, boolean colorAlpha, int texCoordsSize) Creates the full-featured TriangleArray.
static Geometry	createGeometryArray(GeometryConstruct gc)
static IndexedTriangleArray	createIndexedTriangleArray(GeometryConstruct geomConstruct) Creates a IndexedTriangleArray.
static IndexedTriangleArray	createIndexedTriangleArray(org.openmali.vecmath2.Tuple3f[] vertices, int[] indices, org.openmali.vecmath2.Vector3f[] normals, org.openmali.vecmath2.Colorf[] colors, org.openmali.vecmath2.TexCoord2f[] texCoords2, org.openmali.vecmath2.TexCoord3f[] texCoords3) Creates an IndexedTriangleArray.
static IndexedTriangleStripArray	createIndexedTriangleStripArray(GeometryConstruct geomConstruct) Creates a IndexedTriangleStripArray.
static IndexedTriangleStripArray	createIndexedTriangleStripArray(org.openmali.vecmath2.Tuple3f[] vertices, int[] indices, org.openmali.vecmath2.Vector3f[] normals, org.openmali.vecmath2.Colorf[] colors, org.openmali.vecmath2.TexCoord2f[] texCoords2, org.openmali.vecmath2.TexCoord3f[] texCoords3, int[] stripLengths) Creates an IndexedTriangleStripArray.
static IndexedTriangleArray	createITAfromITSA(GeometryConstruct gcITSA) Creates an IndexedTriangleArray for a Shape3D.
static TriangleArray	createTAfromITSA(GeometryConstruct gcITSA) Creates a TriangleArray for a Shape3D.
static TriangleArray	createTriangleArray(GeometryConstruct geomConstruct) Creates a TriangleArray.
static TriangleArray	createTriangleArray(org.openmali.vecmath2.Tuple3f[] vertices, org.openmali.vecmath2.Vector3f[] normals, org.openmali.vecmath2.Colorf[] colors, org.openmali.vecmath2.TexCoord2f[] texCoords2, org.openmali.vecmath2.TexCoord3f[] texCoords3) Creates a TriangleArray.
static TriangleStripArray	createTriangleStripArray(GeometryConstruct geomConstruct) Creates a TriangleStripArray.
static TriangleStripArray	createTriangleStripArray(org.openmali.vecmath2.Tuple3f[] vertices, org.openmali.vecmath2.Vector3f[] normals, org.openmali.vecmath2.Colorf[] colors, org.openmali.vecmath2.TexCoord2f[] texCoords2, org.openmali.vecmath2.TexCoord3f[] texCoords3, int[] stripLengths) Creates a TriangleStripArray.
static TriangleStripArray	createTSAfromITSA(GeometryConstruct gcITSA) Creates a TriangleStripArray for a Shape3D.
static org.openmali.vecmath2.Colorf[]	generateColors(boolean alpha, org.openmali.vecmath2.Tuple3f[] coords) Auto-generates the colors.
static org.openmali.vecmath2.Vector3f[]	generateNaiveNormals(org.openmali.vecmath2.Tuple3f[] vertices) Auto-generates the normals.
static org.openmali.vecmath2.TexCoord2f[]	generateTexCoords2(org.openmali.vecmath2.Tuple3f[] vertices) Auto-generates the texture coordinates.
static org.openmali.vecmath2.TexCoord3f[]	generateTexCoords3(org.openmali.vecmath2.Tuple3f[] vertices) Auto-generates the texture coordinates.
static int	getFeaturesFromAppearance(Appearance app) Retrieves the GeometryArray features from the Appearance, that are at least necessary to handle this Appearance.
static int	getTexCoordsSize(Appearance app) Retrieves the GeometryArray features from the Appearance, that are at least necessary to handle this Appearance.
static void	reverseWinding(Geometry ga) Swaps vertex 0 and 2 of each following 3.

Methods inherited from class java.lang.Object

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

Constructor Detail

GeomFactory

public GeomFactory()

Method Detail

reverseWinding

public static void reverseWinding(Geometry ga)

Swaps vertex 0 and 2 of each following 3.

Parameters:

ga - the Geometry whose vertices are to be swapped

getFeaturesFromAppearance

public static int getFeaturesFromAppearance(Appearance app)

Retrieves the GeometryArray features from the Appearance, that are at least necessary to handle this Appearance.

Parameters:

app - the Appearance from which to retrieve the features

Returns:

the collected GometryArray features

getTexCoordsSize

public static int getTexCoordsSize(Appearance app)

Retrieves the GeometryArray features from the Appearance, that are at least necessary to handle this Appearance.

Parameters:

app - the Appearance from which to retrieve the features

Returns:

the collected GometryArray features

generateNaiveNormals

public static org.openmali.vecmath2.Vector3f[] generateNaiveNormals(org.openmali.vecmath2.Tuple3f[] vertices)

Auto-generates the normals.

Parameters:

vertices - the vertices to generate the normals from

Returns:

the normals-array

generateTexCoords2

public static org.openmali.vecmath2.TexCoord2f[] generateTexCoords2(org.openmali.vecmath2.Tuple3f[] vertices)

Auto-generates the texture coordinates.

Parameters:

vertices - the vertices from which to generate the texture coordinates

Returns:

the tex-coords-array

generateTexCoords3

public static org.openmali.vecmath2.TexCoord3f[] generateTexCoords3(org.openmali.vecmath2.Tuple3f[] vertices)

Auto-generates the texture coordinates.

Parameters:

vertices - the vertices from which to generate the texture coordinates

Returns:

the tex-coords-array

generateColors

public static org.openmali.vecmath2.Colorf[] generateColors(boolean alpha,
                                                            org.openmali.vecmath2.Tuple3f[] coords)

Auto-generates the colors.

Parameters:

alpha - the flag to indicate whether to set the alpha channel to 0

coords - the coordinates from which to generate the colors

Returns:

the colors-array

createFullFeaturedTriangleArray

public static TriangleArray createFullFeaturedTriangleArray(org.openmali.vecmath2.Tuple3f[] vertices,
                                                            org.openmali.vecmath2.Vector3f[] normals,
                                                            org.openmali.vecmath2.Colorf[] colors,
                                                            org.openmali.vecmath2.TexCoord2f[] texCoords2,
                                                            int features,
                                                            boolean colorAlpha,
                                                            int texCoordsSize)

Creates the full-featured TriangleArray.

Parameters:

vertices -

normals -

colors -

texCoords2 -

features -

colorAlpha -

texCoordsSize -

Returns:

the TriangleArray

createFullFeaturedTriangleArray

protected static TriangleArray createFullFeaturedTriangleArray(GeometryConstruct[] geoms)

Creates the full-featured TriangleArray.

Parameters:

geoms - the array of GeometryConstructs to build it from

Returns:

the TriangleArray just created

calculateFeatures

protected static int calculateFeatures(org.openmali.vecmath2.Tuple3f[] coords,
                                       org.openmali.vecmath2.Vector3f[] normals,
                                       org.openmali.vecmath2.Colorf[] colors,
                                       org.openmali.vecmath2.TexCoord2f[] texCoords2,
                                       org.openmali.vecmath2.TexCoord3f[] texCoords3)

Calculates the GeometryArray features.

Parameters:

coords - array of Tuple3f coordinates

normals - array of normals coordinates

colors - array of colors

texCoords2 - array of TexCoord2f texture coordinates

texCoords3 - array of TexCoord3f texture coordinates

Returns:

the GeometryArray features

createTriangleArray

public static TriangleArray createTriangleArray(org.openmali.vecmath2.Tuple3f[] vertices,
                                                org.openmali.vecmath2.Vector3f[] normals,
                                                org.openmali.vecmath2.Colorf[] colors,
                                                org.openmali.vecmath2.TexCoord2f[] texCoords2,
                                                org.openmali.vecmath2.TexCoord3f[] texCoords3)

Creates a TriangleArray.

Parameters:

vertices - array of Tuple3f vertices

normals - array of normals coordinates

colors - array of colors

texCoords2 - array of TexCoord2f texture coordinates

texCoords3 - array of TexCoord3f texture coordinates

Returns:

the TriangleArray

createTriangleArray

public static TriangleArray createTriangleArray(GeometryConstruct geomConstruct)

Creates a TriangleArray.

Parameters:

geomConstruct - the geometry construction data to use

Returns:

the TriangleArray

createIndexedTriangleArray

public static IndexedTriangleArray createIndexedTriangleArray(org.openmali.vecmath2.Tuple3f[] vertices,
                                                              int[] indices,
                                                              org.openmali.vecmath2.Vector3f[] normals,
                                                              org.openmali.vecmath2.Colorf[] colors,
                                                              org.openmali.vecmath2.TexCoord2f[] texCoords2,
                                                              org.openmali.vecmath2.TexCoord3f[] texCoords3)

Creates an IndexedTriangleArray.

Parameters:

vertices - array of Tuple3f vertices

indices - the indices to use

normals - array of normals coordinates

colors - array of colors

texCoords2 - array of TexCoord2f texture coordinates

texCoords3 - array of TexCoord3f texture coordinates

Returns:

the IndexedTriangleArray

createIndexedTriangleArray

public static IndexedTriangleArray createIndexedTriangleArray(GeometryConstruct geomConstruct)

Creates a IndexedTriangleArray.

Parameters:

geomConstruct - the geometry construction data to use

Returns:

the IndexedTriangleArray

createTriangleStripArray

public static TriangleStripArray createTriangleStripArray(org.openmali.vecmath2.Tuple3f[] vertices,
                                                          org.openmali.vecmath2.Vector3f[] normals,
                                                          org.openmali.vecmath2.Colorf[] colors,
                                                          org.openmali.vecmath2.TexCoord2f[] texCoords2,
                                                          org.openmali.vecmath2.TexCoord3f[] texCoords3,
                                                          int[] stripLengths)

Creates a TriangleStripArray.

Parameters:

vertices - array of Tuple3f vertices

normals - array of normals coordinates

colors - array of colors

texCoords2 - array of TexCoord2f texture coordinates

texCoords3 - array of TexCoord3f texture coordinates

stripLengths - array of strip lengths

Returns:

the TriangleStripArray

createTriangleStripArray

public static TriangleStripArray createTriangleStripArray(GeometryConstruct geomConstruct)

Creates a TriangleStripArray.

Parameters:

geomConstruct - the geometry construction data to use

Returns:

the TriangleStripArray

createIndexedTriangleStripArray

public static IndexedTriangleStripArray createIndexedTriangleStripArray(org.openmali.vecmath2.Tuple3f[] vertices,
                                                                        int[] indices,
                                                                        org.openmali.vecmath2.Vector3f[] normals,
                                                                        org.openmali.vecmath2.Colorf[] colors,
                                                                        org.openmali.vecmath2.TexCoord2f[] texCoords2,
                                                                        org.openmali.vecmath2.TexCoord3f[] texCoords3,
                                                                        int[] stripLengths)

Creates an IndexedTriangleStripArray.

Parameters:

vertices - array of Tuple3f vertices

indices - the indices to use

normals - array of normals coordinates

colors - array of colors

texCoords2 - array of TexCoord2f texture coordinates

texCoords3 - array of TexCoord3f texture coordinates

stripLengths - array of strip lengths

Returns:

the IndexedTriangleStripArray

createIndexedTriangleStripArray

public static IndexedTriangleStripArray createIndexedTriangleStripArray(GeometryConstruct geomConstruct)

Creates a IndexedTriangleStripArray.

Parameters:

geomConstruct - the geometry construction data to use

Returns:

the IndexedTriangleStripArray

createGeometryArray

public static Geometry createGeometryArray(GeometryConstruct gc)

convertGeometryConstructITSA2ITA

public static GeometryConstruct convertGeometryConstructITSA2ITA(GeometryConstruct gcITSA)

Converts a GeometryConstruct made for IndexedTriangleStripArray to one made for IndexedTriangleArrays.
The data instances will be the same for both GeometryConstructs!

Parameters:

gcITSA - the source GeometryConstruct made for IndexedTriangleStripArrays

Returns:

the new GeometryConstruct made for IndexedTriangleArrays

convertGeometryConstructITSA2TSA

public static GeometryConstruct convertGeometryConstructITSA2TSA(GeometryConstruct gcITSA)

Converts a GeometryConstruct made for IndexedTriangleStripArray to one made for TriangleStripArrays.
The data instances will be the same for both GeometryConstructs!

Parameters:

gcITSA - the source GeometryConstruct made for IndexedTriangleStripArrays

Returns:

the new GeometryConstruct made for TriangleStripArrays

convertGeometryConstructITSA2TA

public static GeometryConstruct convertGeometryConstructITSA2TA(GeometryConstruct gcITSA)

Converts a GeometryConstruct made for IndexedTriangleStripArray to one made for TriangleArrays.
The data instances will be the same for both GeometryConstructs!

Parameters:

gcITSA - the source GeometryConstruct made for IndexedTriangleStripArrays

Returns:

the new GeometryConstruct made for TriangleArrays

createITAfromITSA

public static IndexedTriangleArray createITAfromITSA(GeometryConstruct gcITSA)

Creates an IndexedTriangleArray for a Shape3D.

Parameters:

gcITSA - the GeometryConstruct to build it from

createTSAfromITSA

public static TriangleStripArray createTSAfromITSA(GeometryConstruct gcITSA)

Creates a TriangleStripArray for a Shape3D.

Parameters:

gcITSA - the GeometryConstruct to build it from

createTAfromITSA

public static TriangleArray createTAfromITSA(GeometryConstruct gcITSA)

Creates a TriangleArray for a Shape3D.

Parameters:

gcITSA - the GeometryConstruct to build it from