Package org.web3d.vrml.renderer.ogl.nodes.nurbs.mesh

Class RectangularMesh

java.lang.Object

org.web3d.vrml.renderer.ogl.nodes.nurbs.mesh.RectangularMesh

All Implemented Interfaces:

AviatrixConnector, GeometryArray, RectangularGeometryArray

public class RectangularMesh
extends Object
implements RectangularGeometryArray, AviatrixConnector

An extension of GeometryArray when the points defining the vertices are guaranteed to form a rectangular array in parametric space

Version:

0.1

Author:

Vincent Marchetti

Field Summary

Fields

Modifier and Type	Field	Description
protected javax.vecmath.Point3f[]	euc_coords
protected int[]	indices
protected javax.vecmath.Point2f[]	par_coords
protected int	udim
protected int	useg
protected float[][]	uvRange
protected int	vdim
protected int	vseg

Constructor Summary

Constructors

Constructor	Description
RectangularMesh(net.jgeom.nurbs.NurbsSurface surface, int segU, int segV)

Method Summary

Modifier and Type	Method	Description
javax.vecmath.Point3f[]	euclidean_coordinates()	Return the real (3D Euclidean space) coordinates of points.
int	indexInArray(int i, int j)	0 <= i < numDimensions[0] 0 <= j < numDimensions[1]
int[]	numDimensions()	numDimensions[0] = numSegments[0] + 1 numDimensions[1] = numSegments[1] + 1
int	numPoints()	Return the number of points in tesselation
int[]	numSegments()	Return the number of segments (intervals, steps) in parameter space *
float[][]	parameter_range()	Return the range of parameters parameter_range[0] is a 2-array of min, max of u parameter parameter_range[0][0] the minimum of u parameter_range[0][1] the maximum of u parameter_range[1][0] the minimum of v parameter_range[1][1] the maximum of v
javax.vecmath.Point2f[]	parametric_coordinates()	Return the parametric (2D) coordinates of points.
org.j3d.aviatrix3d.VertexGeometry	sceneGraphObject()	Returns aviatrix scene graph object

Methods inherited from class java.lang.Object

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

Field Details

useg

protected int useg

vseg

protected int vseg

udim

protected int udim

vdim

protected int vdim

uvRange

protected float[][] uvRange

euc_coords

protected javax.vecmath.Point3f[] euc_coords

par_coords

protected javax.vecmath.Point2f[] par_coords

indices

protected int[] indices

Constructor Details

RectangularMesh

public RectangularMesh(net.jgeom.nurbs.NurbsSurface surface,
 int segU,
 int segV)

Method Details

numSegments

public int[] numSegments()

Return the number of segments (intervals, steps) in parameter space *

Specified by:

numSegments in interface RectangularGeometryArray

Returns:

size 2 array {number of u segment, number of v segments}

numDimensions

public int[] numDimensions()

numDimensions[0] = numSegments[0] + 1 numDimensions[1] = numSegments[1] + 1

Specified by:

numDimensions in interface RectangularGeometryArray

Returns:

index to use for coordinates array

indexInArray

public int indexInArray(int i,
 int j)

0 <= i < numDimensions[0] 0 <= j < numDimensions[1]

Specified by:

indexInArray in interface RectangularGeometryArray

Parameters:

i -

j -

Returns:

index to use for coordinates array

parameter_range

public float[][] parameter_range()

Return the range of parameters parameter_range[0] is a 2-array of min, max of u parameter parameter_range[0][0] the minimum of u parameter_range[0][1] the maximum of u parameter_range[1][0] the minimum of v parameter_range[1][1] the maximum of v

Specified by:

parameter_range in interface RectangularGeometryArray

Returns:

size 2 array {number of u segment, number of v segments}

numPoints

public int numPoints()

Description copied from interface: GeometryArray

Return the number of points in tesselation

Specified by:

numPoints in interface GeometryArray

Returns:

size of real_coordinates and parametric_coordinate

euclidean_coordinates

public javax.vecmath.Point3f[] euclidean_coordinates()

Description copied from interface: GeometryArray

Return the real (3D Euclidean space) coordinates of points. Design intent is that the returned value should not be modified by user

Specified by:

euclidean_coordinates in interface GeometryArray

Returns:

array of coordinates

parametric_coordinates

public javax.vecmath.Point2f[] parametric_coordinates()

Description copied from interface: GeometryArray

Return the parametric (2D) coordinates of points. Design intent is that the returned value should not be modified by user

Specified by:

parametric_coordinates in interface GeometryArray

Returns:

array of parametric coordinates

sceneGraphObject

public org.j3d.aviatrix3d.VertexGeometry sceneGraphObject()

Description copied from interface: AviatrixConnector

Returns aviatrix scene graph object

Specified by:

sceneGraphObject in interface AviatrixConnector

Returns:

Returns aviatrix scene graph object