treebolic.view
Class Mapper

java.lang.Object
  treebolic.view.Mapper

Direct Known Subclasses:

AbstractPainter

public class Mapper
extends java.lang.Object

Mapper of unit circle space to view

Author:

Bernard Bou

Field Summary

protected int	theLeft Left coordinate
protected double	theScaleX Scale x factor
protected double	theScaleY Scale y factor
protected java.awt.Dimension	theSize Size of graphics context
protected int	theTop Top coordinate
protected double	theXShift X shift
protected double	theYShift Y shift
private double	theZoomFactor Zoom factor

Constructor Summary

Mapper()

Method Summary

protected void	computeScale() Compute scale from view size
java.awt.Dimension	getSize() Get size
java.awt.Point	getViewLocation(INode thisNode) Get view coordinates of node
double	getXShift() Get view x-shift
double	getYShift() Get view y-shift
protected int	hUnitCircleToView(double cy) Convert unit circle y-extent to view y-extent
protected double	hViewToUnitCircle(double cvy) Convert view y-extent (height) to unit circle y-extent
void	setXShift(java.lang.Double thisX) Set view x-shift
void	setYShift(java.lang.Double thisY) Set view y-shift
void	setZoomFactor(java.lang.Double thisFactor) Set view zoom factor
Complex	viewToUnitCircle(int vx, int vy, java.awt.Dimension thisSize) Convert view coordinates to unit circle coordinates
protected int	wUnitCircleToView(double cx) Convert unit circle x-extent to view x-extent
protected double	wViewToUnitCircle(double cvx) Convert view x-extent (width) to unit circle x-extent
protected int	xUnitCircleToView(double x) Convert unit circle x-coordinate to view x-coordinate
protected double	xViewToUnitCircle(double vx) Convert view x-coordinate to unit circle x-coordinate
protected int	yUnitCircleToView(double y) Convert unit circle y-coordinate to view y-coordinate
protected double	yViewToUnitCircle(double vy) Convert view y-coordinate to unit circle y-coordinate

Methods inherited from class java.lang.Object

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

Field Detail

theSize

protected java.awt.Dimension theSize

Size of graphics context

theScaleX

protected double theScaleX

Scale x factor

theScaleY

protected double theScaleY

Scale y factor

theXShift

protected double theXShift

X shift

theYShift

protected double theYShift

Y shift

theTop

protected int theTop

Top coordinate

theLeft

protected int theLeft

Left coordinate

theZoomFactor

private double theZoomFactor

Zoom factor

Constructor Detail

Mapper

public Mapper()

Method Detail

getSize

public java.awt.Dimension getSize()

Get size

Returns:

size

setZoomFactor

public void setZoomFactor(java.lang.Double thisFactor)

Set view zoom factor

Parameters:

thisFactor - zoom factor

setXShift

public void setXShift(java.lang.Double thisX)

Set view x-shift

Parameters:

thisX - view x-shift (0,1)

setYShift

public void setYShift(java.lang.Double thisY)

Set view y-shift

Parameters:

thisY - view y-shift (0,1)

getXShift

public double getXShift()

Get view x-shift

Returns:

view x-shift

getYShift

public double getYShift()

Get view y-shift

Returns:

view y-shift

computeScale

protected void computeScale()

Compute scale from view size

xUnitCircleToView

protected int xUnitCircleToView(double x)

Convert unit circle x-coordinate to view x-coordinate

Parameters:

x - unit circle x-coordinate

Returns:

view x-coordinate

yUnitCircleToView

protected int yUnitCircleToView(double y)

Convert unit circle y-coordinate to view y-coordinate

Parameters:

y - unit circle y-coordinate

Returns:

view y-coordinate

wUnitCircleToView

protected int wUnitCircleToView(double cx)

Convert unit circle x-extent to view x-extent

Parameters:

cx - unit circle x-extent

Returns:

view x-extent

hUnitCircleToView

protected int hUnitCircleToView(double cy)

Convert unit circle y-extent to view y-extent

Parameters:

cy - unit circle y-extent

Returns:

view y-extent

xViewToUnitCircle

protected double xViewToUnitCircle(double vx)

Convert view x-coordinate to unit circle x-coordinate

Parameters:

vx - view x-coordinate

Returns:

unit circle x-coordinate

yViewToUnitCircle

protected double yViewToUnitCircle(double vy)

Convert view y-coordinate to unit circle y-coordinate

Parameters:

vy - view y-coordinate

Returns:

unit circle y-coordinate

wViewToUnitCircle

protected double wViewToUnitCircle(double cvx)

Convert view x-extent (width) to unit circle x-extent

Parameters:

cvx - view x-extent

Returns:

unit circle x-extent

hViewToUnitCircle

protected double hViewToUnitCircle(double cvy)

Convert view y-extent (height) to unit circle y-extent

Parameters:

cvy - view y-extent

Returns:

unit circle y-extent

viewToUnitCircle

public Complex viewToUnitCircle(int vx,
                                int vy,
                                java.awt.Dimension thisSize)

Convert view coordinates to unit circle coordinates

Parameters:

vx - x coordinate in view space

vy - y coordinate in view space

thisSize - view size

Returns:

point in unit circle

getViewLocation

public java.awt.Point getViewLocation(INode thisNode)

Get view coordinates of node

Parameters:

thisNode - node

Returns:

view coordinate of node