rp1.rossum
Class RsTransform

java.lang.Object
  rp1.rossum.RsTransform

All Implemented Interfaces:

java.io.Serializable

public class RsTransform
extends java.lang.Object
implements java.io.Serializable

A class for representing matrix-based transformation of object position and orientation, used for both modeling and graphics. The transformation array is implemented using a homegeneous matrix with the expectation that coordinates will be implemented in a compatible form. Transform matrices are always prefixed to coordinates matrices:

A simple rotation and offset would be expressed as shown: where theta is rotation angle T(theta, offsets)*X=X' | cos(theta) -sin(theta) xOffset | |x| |x'| | sin(theta) cos(theta) yOffset | |y| = |y'| | 0 0 1 | |1| |1 |

See Also:

Serialized Form

Field Summary

double	m11
double	m12
double	m13
double	m21
double	m22
double	m23

Constructor Summary

RsTransform()

RsTransform(double theta, double xOffset, double yOffset)

RsTransform(RsTransform t)

RsTransform(RsTransform a, RsTransform b)

Method Summary

void	concat(RsTransform a, RsTransform b)
void	copy(RsTransform source)
RsPoint	getOffset()
double	getScale()
double	getTheta()
void	iMapArray(int nPoint, RsPoint[] point, int[] ix, int[] iy)
void	iMapArrayIndex(double x, double y, int index, int[] ix, int[] iy)
RsPoint	map(double x, double y)
void	map(double x, double y, RsPoint output)
RsPoint	map(RsPoint p)
void	map2(RsPoint input, RsPoint output)
void	map2(RsSegment input, RsSegment output)
RsVector	mapVector(double vx, double vy)
void	setOffset(double xOffset, double yOffset)
void	setTheta(double theta)

Methods inherited from class java.lang.Object

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

Field Detail

m11

public double m11

m12

public double m12

m13

public double m13

m21

public double m21

m22

public double m22

m23

public double m23

Constructor Detail

RsTransform

public RsTransform()

RsTransform

public RsTransform(RsTransform t)

RsTransform

public RsTransform(double theta,
                   double xOffset,
                   double yOffset)

RsTransform

public RsTransform(RsTransform a,
                   RsTransform b)

Method Detail

concat

public void concat(RsTransform a,
                   RsTransform b)

getTheta

public double getTheta()

setTheta

public void setTheta(double theta)

getOffset

public RsPoint getOffset()

setOffset

public void setOffset(double xOffset,
                      double yOffset)

mapVector

public RsVector mapVector(double vx,
                          double vy)

map

public RsPoint map(RsPoint p)

map

public RsPoint map(double x,
                   double y)

map

public void map(double x,
                double y,
                RsPoint output)

iMapArray

public void iMapArray(int nPoint,
                      RsPoint[] point,
                      int[] ix,
                      int[] iy)

iMapArrayIndex

public void iMapArrayIndex(double x,
                           double y,
                           int index,
                           int[] ix,
                           int[] iy)

map2

public void map2(RsSegment input,
                 RsSegment output)

map2

public void map2(RsPoint input,
                 RsPoint output)

copy

public void copy(RsTransform source)

getScale

public double getScale()