chemaxon.struc
Class CTransform3D

java.lang.Object
  chemaxon.struc.CTransform3D

All Implemented Interfaces:

java.io.Serializable

public class CTransform3D

extends java.lang.Object

implements java.io.Serializable

3D transformation matrix.

Version:

3.1.4, 06/09/2003

Author:

Peter Csizmadia

See Also:

Serialized Form

Field Summary

double	m00 The m00 element of the matrix.
double	m01 The m01 element of the matrix.
double	m02 The m02 element of the matrix.
double	m03 The m03 element of the matrix.
double	m10 The m10 element of the matrix.
double	m11 The m11 element of the matrix.
double	m12 The m12 element of the matrix.
double	m13 The m13 element of the matrix.
double	m20 The m20 element of the matrix.
double	m21 The m21 element of the matrix.
double	m22 The m22 element of the matrix.
double	m23 The m23 element of the matrix.
double	m30 The m30 element of the matrix.
double	m31 The m31 element of the matrix.
double	m32 The m32 element of the matrix.
double	m33 The m33 element of the matrix.

Constructor Summary

CTransform3D()
Constructs an identity transformation.

CTransform3D(CTransform3D t)
Copy constructor.

Method Summary

double	getScale() Gets the scale factor.
void	invert() Inverts the matrix.
void	mul(CTransform3D b) Multiplies by another matrix.
void	set(CTransform3D t) Copy.
void	setIdentity() Makes identity transformation.
void	setRotation(double nx, double ny, double nz, double phi) Sets the rotation components.
void	setRotationCenter(DPoint3 o) Sets the rotation center
void	setScale(double scale) Sets the scale factor.
void	setTranslation(double x0, double y0, double z0) Sets the translation components.
void	setTranslation(DPoint3 p) Sets the translation components.
java.lang.String	toString() Gets a string representation of the matrix.
void	transform(DPoint3 p) Transforms a point.

Methods inherited from class java.lang.Object

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

Field Detail

m00

public transient double m00

The m00 element of the matrix.

m01

public transient double m01

The m01 element of the matrix.

m02

public transient double m02

The m02 element of the matrix.

m03

public transient double m03

The m03 element of the matrix.

m10

public transient double m10

The m10 element of the matrix.

m11

public transient double m11

The m11 element of the matrix.

m12

public transient double m12

The m12 element of the matrix.

m13

public transient double m13

The m13 element of the matrix.

m20

public transient double m20

The m20 element of the matrix.

m21

public transient double m21

The m21 element of the matrix.

m22

public transient double m22

The m22 element of the matrix.

m23

public transient double m23

The m23 element of the matrix.

m30

public transient double m30

The m30 element of the matrix.

m31

public transient double m31

The m31 element of the matrix.

m32

public transient double m32

The m32 element of the matrix.

m33

public transient double m33

The m33 element of the matrix.

Constructor Detail

CTransform3D

public CTransform3D(CTransform3D t)

Copy constructor.

Parameters:

t - the transformation to copy

CTransform3D

public CTransform3D()

Constructs an identity transformation.

Method Detail

set

public void set(CTransform3D t)

Copy.

Parameters:

t - target transformation

setIdentity

public final void setIdentity()

Makes identity transformation.

getScale

public final double getScale()

Gets the scale factor. The scale equals to (-1)^sgn(det(T))*|det(T)|^(1/3)

Returns:

the scale factor

setScale

public final void setScale(double scale)

Sets the scale factor.

Parameters:

scale - the scale

setRotation

public final void setRotation(double nx,
                              double ny,
                              double nz,
                              double phi)

Sets the rotation components.

Parameters:

nx - normal vector x

ny - normal vector y

nz - normal vector z

phi - angle

setRotationCenter

public final void setRotationCenter(DPoint3 o)

Sets the rotation center

Parameters:

o - the center

setTranslation

public final void setTranslation(DPoint3 p)

Sets the translation components.

Parameters:

p - the translation

setTranslation

public final void setTranslation(double x0,
                                 double y0,
                                 double z0)

Sets the translation components.

Parameters:

x0 - x translation

y0 - y translation

z0 - z translation

transform

public final void transform(DPoint3 p)

Transforms a point.

Parameters:

p - the point

mul

public final void mul(CTransform3D b)

Multiplies by another matrix.

Parameters:

b - the other matrix

invert

public final void invert()

Inverts the matrix.

toString

public java.lang.String toString()

Gets a string representation of the matrix.

Returns:

the string representation