com.sun.j3d.utils.geometry

Class Project

java.lang.Object

com.sun.j3d.utils.geometry.Project

 class Project
extends java.lang.Object

Constructor Summary

Constructors

Constructor and Description
Project()

Method Summary

Methods

Modifier and Type	Method and Description
(package private) static void	determineNormal(Triangulator triRef, int ind, Vector3f normal) This function computes the average of all normals defined by triples of successive vertices of the polygon.
(package private) static void	projectFace(Triangulator triRef, int loopMin, int loopMax) This function projects the vertices of the polygons referenced by loops[i1,..,i2-1] to an approximating plane.
(package private) static void	projectPoints(Triangulator triRef, int i1, int i2, Vector3f n3) This function maps the vertices of the polygon referenced by `ind' to the plane n3.x * x + n3.y * y + n3.z * z = 0.

Methods inherited from class java.lang.Object

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

Constructor Detail

Project

Project()

Method Detail

projectFace

static void projectFace(Triangulator triRef,
               int loopMin,
               int loopMax)

This function projects the vertices of the polygons referenced by loops[i1,..,i2-1] to an approximating plane.

determineNormal

static void determineNormal(Triangulator triRef,
                   int ind,
                   Vector3f normal)

This function computes the average of all normals defined by triples of successive vertices of the polygon. we'll see whether this is a good heuristic for finding a suitable plane normal...

projectPoints

static void projectPoints(Triangulator triRef,
                 int i1,
                 int i2,
                 Vector3f n3)

This function maps the vertices of the polygon referenced by `ind' to the plane n3.x * x + n3.y * y + n3.z * z = 0. every mapped vertex (x,y,z) is then expressed in terms of (x',y',z'), where z'=0. this is achieved by transforming the original vertices into a coordinate system whose z-axis coincides with n3, and whose two other coordinate axes n1 and n2 are orthonormal on n3. note that n3 is supposed to be of unit length!