java.lang.Object
- org.jungrapht.visualization.transform.AffineTransformer

All Implemented Interfaces:

BidirectionalTransformer, ShapeTransformer

Direct Known Subclasses:

MutableAffineTransformer
```
public class AffineTransformer
extends Object
implements BidirectionalTransformer, ShapeTransformer
```
Provides methods to map points from one coordinate system to another, by delegating to a wrapped AffineTransform (uniform) and its inverse.

Author:

Tom Nelson

Field Summary

Fields
Modifier and Type Field Description

protected AffineTransform inverse

protected AffineTransform transform
The AffineTransform to use; initialized to identity.

Constructor Summary

Constructors
Constructor	Description
`AffineTransformer()`	Create an instance that does not transform points.
`AffineTransformer(AffineTransform transform)`	Create an instance with the supplied transform.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`AffineTransform`	`getInverse()`
`double`	`getRotation()`
`double`	`getScale()`
`double`	`getScaleX()`
`double`	`getScaleY()`
`double`	`getShearX()`
`double`	`getShearY()`
`AffineTransform`	`getTransform()`
`double`	`getTranslateX()`
`double`	`getTranslateY()`
`Point2D`	`inverseTransform(double x, double y)`
`Point2D`	`inverseTransform(Point2D p)`	applies the inverse transform to the supplied point
`Shape`	`inverseTransform(Shape shape)`	Transform the supplied shape from screen (view) to graph (layout) coordinates.
`double`	`scale()`
`void`	`setTransform(AffineTransform transform)`
`Point2D`	`transform(double x, double y)`
`Point2D`	`transform(Point2D p)`	Applies the transform to the supplied point.
`Shape`	`transform(Shape shape)`	Transform the supplied shape from graph (layout) to screen (view) coordinates.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Field Detail
  - inverse
```
protected AffineTransform inverse
```
  - transform
```
protected AffineTransform transform
```
    The AffineTransform to use; initialized to identity.
- Constructor Detail
  - AffineTransformer
```
public AffineTransformer()
```
    Create an instance that does not transform points.
  - AffineTransformer
```
public AffineTransformer(AffineTransform transform)
```
    Create an instance with the supplied transform.
    
    Parameters:
    
    transform - the transform to use
- Method Detail
  - getTransform
```
public AffineTransform getTransform()
```
    Returns:
    
    Returns the transform.
  - setTransform
```
public void setTransform(AffineTransform transform)
```
    Parameters:
    
    transform - The transform to set.
  - inverseTransform
```
public Point2D inverseTransform(Point2D p)
```
    applies the inverse transform to the supplied point
    
    Specified by:
    
    inverseTransform in interface BidirectionalTransformer
    
    Parameters:
    
    p - the point to transform
    
    Returns:
    
    the transformed point
  - inverseTransform
```
public Point2D inverseTransform(double x,
                                double y)
```
    Specified by:
    
    inverseTransform in interface BidirectionalTransformer
  - getInverse
```
public AffineTransform getInverse()
```
  - getScaleX
```
public double getScaleX()
```
    Returns:
    
    the transform's x scale value
  - getScaleY
```
public double getScaleY()
```
    Returns:
    
    the transform's y scale value
  - getScale
```
public double getScale()
```
    Returns:
    
    the transform's overall scale magnitude
  - scale
```
public double scale()
```
  - getShearX
```
public double getShearX()
```
    Returns:
    
    the transform's x shear value
  - getShearY
```
public double getShearY()
```
    Returns:
    
    the transform's y shear value
  - getTranslateX
```
public double getTranslateX()
```
    Returns:
    
    the transform's x translate value
  - getTranslateY
```
public double getTranslateY()
```
    Returns:
    
    the transform's y translate value
  - transform
```
public Point2D transform(Point2D p)
```
    Applies the transform to the supplied point.
    
    Specified by:
    
    transform in interface BidirectionalTransformer
    
    Parameters:
    
    p - the point to be transformed
    
    Returns:
    
    the transformed point
  - transform
```
public Point2D transform(double x,
                         double y)
```
    Specified by:
    
    transform in interface BidirectionalTransformer
  - transform
```
public Shape transform(Shape shape)
```
    Transform the supplied shape from graph (layout) to screen (view) coordinates.
    
    Specified by:
    
    transform in interface ShapeTransformer
    
    Parameters:
    
    shape - the Shape to transform
    
    Returns:
    
    the GeneralPath of the transformed shape
  - inverseTransform
```
public Shape inverseTransform(Shape shape)
```
    Transform the supplied shape from screen (view) to graph (layout) coordinates.
    
    Specified by:
    
    inverseTransform in interface ShapeTransformer
    
    Returns:
    
    the GeneralPath of the transformed shape
  - getRotation
```
public double getRotation()
```

Modifier and Type	Field	Description
`protected AffineTransform`	`inverse`
`protected AffineTransform`	`transform`	The AffineTransform to use; initialized to identity.

Class AffineTransformer

Field Summary

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Field Detail

inverse

transform

Constructor Detail

AffineTransformer

AffineTransformer

Method Detail

getTransform

setTransform

inverseTransform

inverseTransform

getInverse

getScaleX

getScaleY

getScale

scale

getShearX

getShearY

getTranslateX

getTranslateY

transform

transform

transform

inverseTransform

getRotation