de.jreality.geometry

Class QuadMeshUtility

java.lang.Object

de.jreality.geometry.QuadMeshUtility

public class QuadMeshUtility
extends Object

Static methods applicable to quad meshes. In jReality, quad meshes are indentified as instances of IndexedFaceSet which have a non-null Attribute with key GeometryUtility.QUAD_MESH_SHAPE.

These methods support extracting given u or v parameter curves.

Author:

Charles Gunn

Method Summary

Modifier and Type	Method and Description
static double[][]	extractParameterCurve(double[][] curve, IndexedFaceSet ifs, int which, int type) Extracts the specified parameter curve from the quad mesh represented by ifs.
static double[][]	extractUParameterCurve(double[][] curve, IndexedFaceSet ifs, int which)
static double[][]	extractVParameterCurve(double[][] curve, IndexedFaceSet ifs, int which)
static void	generateAndSetEdgesFromQuadMesh(IndexedFaceSet qm)

Methods inherited from class java.lang.Object

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

Method Detail

extractUParameterCurve

public static double[][] extractUParameterCurve(double[][] curve,
                                                IndexedFaceSet ifs,
                                                int which)

extractVParameterCurve

public static double[][] extractVParameterCurve(double[][] curve,
                                                IndexedFaceSet ifs,
                                                int which)

extractParameterCurve

public static double[][] extractParameterCurve(double[][] curve,
                                               IndexedFaceSet ifs,
                                               int which,
                                               int type)

Extracts the specified parameter curve from the quad mesh represented by ifs.

Parameters:

curve - where to store the output curve; null OK

ifs - the quad mesh

which - the index of the curve to extract

type - 0: extract curve for fixed u-value; 1: fixed v-value

Returns:

the extracted curve

generateAndSetEdgesFromQuadMesh

public static void generateAndSetEdgesFromQuadMesh(IndexedFaceSet qm)