jmathlib.core.graphics
Class Matrix3D

java.lang.Object
  jmathlib.core.graphics.Matrix3D

public class Matrix3D
extends java.lang.Object

A fairly conventional 3D matrix object that can transform sets of 3D points and perform a variety of manipulations on the transform

Constructor Summary

Matrix3D()
Create a new unit matrix

Method Summary

void	mult(Matrix3D rhs) Multiply this matrix by a second: M = M*R
void	scale(double f) Scale by f in all dimensions
void	scale(double xf, double yf, double zf) Scale along each axis independently
void	transform(double[][] x, double[][] y, double[][] z, int[][] tx, int[][] ty, int[][] tz) Transform nvert points from v into tv.
void	transform(double[] x, double[] y, double[] z, int[] tx, int[] ty, int[] tz) Transform nvert points from v into tv.
java.awt.Point	transform(double x, double y, double z)
void	translate(double x, double y, double z) Translate the origin
void	unit() Reinitialize to the unit matrix
void	xrot(double theta) rotate theta degrees about the x axis
void	yrot(double theta) rotate theta degrees about the y axis
void	zrot(double theta) rotate theta degrees about the z axis

Methods inherited from class java.lang.Object

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

Constructor Detail

Matrix3D

public Matrix3D()

Create a new unit matrix

Method Detail

scale

public void scale(double f)

Scale by f in all dimensions

scale

public void scale(double xf,
                  double yf,
                  double zf)

Scale along each axis independently

translate

public void translate(double x,
                      double y,
                      double z)

Translate the origin

yrot

public void yrot(double theta)

rotate theta degrees about the y axis

xrot

public void xrot(double theta)

rotate theta degrees about the x axis

zrot

public void zrot(double theta)

rotate theta degrees about the z axis

mult

public void mult(Matrix3D rhs)

Multiply this matrix by a second: M = M*R

unit

public void unit()

Reinitialize to the unit matrix

transform

public void transform(double[] x,
                      double[] y,
                      double[] z,
                      int[] tx,
                      int[] ty,
                      int[] tz)

Transform nvert points from v into tv. v contains the input coordinates in floating point. Three successive entries in the array constitute a point. tv ends up holding the transformed points as integers; three successive entries per point

transform

public void transform(double[][] x,
                      double[][] y,
                      double[][] z,
                      int[][] tx,
                      int[][] ty,
                      int[][] tz)

Transform nvert points from v into tv. v contains the input coordinates in floating point. Three successive entries in the array constitute a point. tv ends up holding the transformed points as integers; three successive entries per point

transform

public java.awt.Point transform(double x,
                                double y,
                                double z)