com.esri.core.geometry

Class Transformation3D

java.lang.Object

com.esri.core.geometry.Transformation3D

public final class Transformation3D
extends Object

The 3D affine transformation class. We use matrices for transformations of the vectors as rows. That means the math expressions on the Geometry matrix operations should be writen like this: v' = v * M1 * M2 * M3 = ( (v * M1) * M2 ) * M3, where v is a vector, Mn are the matrices. This is equivalent to the following line of code: ResultVector = (M1.Mul(M2).Mul(M3)).Transform(Vector)

Field Summary

Fields

Modifier and Type	Field and Description
double	xd
double	xx
double	xy
double	xz
double	yd
double	yx
double	yy
double	yz
double	zd
double	zx
double	zy
double	zz

Constructor Summary

Constructors

Constructor and Description
Transformation3D()

Method Summary

Modifier and Type	Method and Description
Transformation3D	copy()
static void	inverse(Transformation3D src, Transformation3D result) Calculates the Inverse transformation.
void	mul(Transformation3D right)
void	mulLeft(Transformation3D left)
static void	multiply(Transformation3D a, Transformation3D b, Transformation3D result) Performs multiplication of matrices a and b and places result into result.
void	setScale(double scaleX, double scaleY, double scaleZ)
void	setTranslate(double deltax, double deltay, double deltaz)
void	setZero() Sets all elements to 0, thus producing and invalid transformation.
Envelope3D	transform(Envelope3D env) Transforms an envelope.
Point3D	transform(Point3D src)
void	transform(Point3D[] points, int start, int count)
void	transform(Point3D[] pointsIn, int count, Point3D[] pointsOut)
void	translate(double deltax, double deltay, double deltaz)

Methods inherited from class java.lang.Object

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

Field Detail

xx

public double xx

yx

public double yx

zx

public double zx

xd

public double xd

xy

public double xy

yy

public double yy

zy

public double zy

yd

public double yd

xz

public double xz

yz

public double yz

zz

public double zz

zd

public double zd

Constructor Detail

Transformation3D

public Transformation3D()

Method Detail

setZero

public void setZero()

Sets all elements to 0, thus producing and invalid transformation.

setScale

public void setScale(double scaleX,
                     double scaleY,
                     double scaleZ)

setTranslate

public void setTranslate(double deltax,
                         double deltay,
                         double deltaz)

translate

public void translate(double deltax,
                      double deltay,
                      double deltaz)

transform

public Envelope3D transform(Envelope3D env)

Transforms an envelope. The result is the bounding box of the transformed envelope.

transform

public void transform(Point3D[] pointsIn,
                      int count,
                      Point3D[] pointsOut)

transform

public Point3D transform(Point3D src)

transform

public void transform(Point3D[] points,
                      int start,
                      int count)

mul

public void mul(Transformation3D right)

mulLeft

public void mulLeft(Transformation3D left)

multiply

public static void multiply(Transformation3D a,
                            Transformation3D b,
                            Transformation3D result)

Performs multiplication of matrices a and b and places result into result. The a, b, and result could point to same objects.
Equivalent to result = a * b.

inverse

public static void inverse(Transformation3D src,
                           Transformation3D result)

Calculates the Inverse transformation.

Parameters:

src - The input transformation.

result - The inverse of the input transformation. Throws the GeometryException("math singularity") exception if the Inverse can not be calculated.

copy

public Transformation3D copy()