lt.monarch.chart.chart2D.engine
Class Transformation

java.lang.Object
  lt.monarch.chart.chart2D.engine.Transformation

All Implemented Interfaces:

java.io.Serializable, java.lang.Cloneable

public class Transformation
extends java.lang.Object
implements java.lang.Cloneable, java.io.Serializable

Class responsible for transforming coordinates according to transformation matrix or specified angle of rotation (matrix is formed then).

See Also:

Serialized Form

Field Summary

Modifier and Type	Field and Description
protected int	dimension Dimension of the transformation matrix.
protected double[]	matrix

Constructor and Description

Transformation()
Default transformation matrix constructor, which has no effect on transforming point.

Transformation(double angle)
Transformation matrix constructor

Transformation(double m00, double m10, double m01, double m11, double m02, double m12)
Transformation matrix constructor

Method Summary

Modifier and Type	Method and Description
protected java.lang.Object	clone()
java.awt.geom.AffineTransform	getAffineTransform() Returns affine transformation
double	getXScale() Gets the x scale
double	getXShear() Gets x shear
double	getXShift() Gets x shift
double	getYScale() Gets y scale
double	getYShear() Gets y shear
double	getYShift() Gets y shift
void	setXScale(double value) Sets the x scale
void	setXShear(double value) Sets x shear
void	setXShift(double value) Sets x shift
void	setYScale(double value) Sets y scale
void	setYShear(double value) Sets y shear
void	setYShift(double value) Sets y shift
Point2D	transform(Point2D vectorPoint, double x, double y) Transforms the point according to transformation matrix
Point2D	transform(Point2D vectorPoint, Point2D anchor) Transforms the point according a transformation matrix
Rectangle2D	transform(Rectangle2D bounds) Transforms rectangle bounds according a transformation matrix
void	transformInplace(Point2D vectorPoint, double x, double y) Transforms the point according to transformation matrix.
Rectangle2D	transformInplace(Rectangle2D bounds) Transforms rectangle bounds according a transformation matrix.
void	transformWithoutTranslateInplace(Point2D vectorPoint) Transforms the point according a transformation matrix.

Methods inherited from class java.lang.Object

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

Field Detail

matrix

protected double[] matrix

dimension

protected int dimension

Dimension of the transformation matrix. for 2D is 2, for 3D is 3

Constructor Detail

Transformation

public Transformation()

Default transformation matrix constructor, which has no effect on transforming point.

Transformation

public Transformation(double m00,
                      double m10,
                      double m01,
                      double m11,
                      double m02,
                      double m12)

Transformation matrix constructor

Parameters:

m00 - 0 row, 0 column value. X scale.

m10 - 1 row, 0 column value. X shear.

m01 - 0 row, 1 column value. Y shear.

m11 - 1 row, 1 column value. Y scale.

m02 - 0 row, 2 column value. X shift.

m12 - 1 row, 2 column value. Y shift.

Transformation

public Transformation(double angle)

Transformation matrix constructor

Parameters:

angle - point rotation angle in radians.

Method Detail

transform

public Point2D transform(Point2D vectorPoint,
                         double x,
                         double y)

Transforms the point according to transformation matrix

Parameters:

vectorPoint - the point to transform

x - x anchor point

y - y anchor point

Returns:

transformed point

transformInplace

public void transformInplace(Point2D vectorPoint,
                             double x,
                             double y)

Transforms the point according to transformation matrix. Points values are replaced with transformed values.

Parameters:

vectorPoint - the point to transform

x - x anchor point

y - y anchor point

transform

public Point2D transform(Point2D vectorPoint,
                         Point2D anchor)

Transforms the point according a transformation matrix

Parameters:

vectorPoint - the point to transform

anchor - anchor point

Returns:

transformed point

transformWithoutTranslateInplace

public void transformWithoutTranslateInplace(Point2D vectorPoint)

Transforms the point according a transformation matrix. Skips translation.

Parameters:

vectorPoint - the point to transform

transform

public Rectangle2D transform(Rectangle2D bounds)

Transforms rectangle bounds according a transformation matrix

Parameters:

bounds - rectangle bounds as double values

Returns:

Transformed rectangle with double values

transformInplace

public Rectangle2D transformInplace(Rectangle2D bounds)

Transforms rectangle bounds according a transformation matrix. Rectangle values are replaced with transformed values.

Parameters:

bounds - rectangle bounds as double values

getXScale

public double getXScale()

Gets the x scale

Returns:

x scale

getYScale

public double getYScale()

Gets y scale

Returns:

y scale

getXShift

public double getXShift()

Gets x shift

Returns:

x shift

getYShift

public double getYShift()

Gets y shift

Returns:

y shift

getXShear

public double getXShear()

Gets x shear

Returns:

x shift

getYShear

public double getYShear()

Gets y shear

Returns:

y shift

setXScale

public void setXScale(double value)

Sets the x scale

Parameters:

value - x scale

setYScale

public void setYScale(double value)

Sets y scale

Parameters:

value - y scale

setXShift

public void setXShift(double value)

Sets x shift

Parameters:

value - x shift

setYShift

public void setYShift(double value)

Sets y shift

Parameters:

value - y shift

setXShear

public void setXShear(double value)

Sets x shear

Parameters:

value - x shift

setYShear

public void setYShear(double value)

Sets y shear

Parameters:

value - y shift

clone

protected java.lang.Object clone()

Overrides:

clone in class java.lang.Object

getAffineTransform

public java.awt.geom.AffineTransform getAffineTransform()

Returns affine transformation

Returns:

affine transformation