Package com.treemap

Class RectangularTransform

java.lang.Object
com.treemap.RectangularTransform
public class RectangularTransform extends Object
This is a transform that only scales and translates. It is a subset of an AffineTransform, except with no rotation/shearing.

  • Constructor Summary

    Constructors
    Constructor
    Description
    RectangularTransform()
    Creates an identity transform.
    RectangularTransform(double sx, double sy, double tx, double ty)
    Creates a RectangularTransform.
    RectangularTransform(com.macrofocus.geom.Rectangle2D oldRect, com.macrofocus.geom.Rectangle2D newRect)
    Creates a RectangularTransform that transforms from one rectangle to another.

  • Method Summary

    Modifier and Type
    Method
    Description
    static com.macrofocus.geom.AffineTransform
    create(com.macrofocus.geom.Rectangle2D oldRect, com.macrofocus.geom.Rectangle2D newRect)
    Creates an AffineTransform that maps one argument to another.
    com.macrofocus.geom.AffineTransform
    createAffineTransform()
    Converts this to an AffineTransform.
    RectangularTransform
    createInverse()
    Creates a transform that is the inverse of this one.
    double
    getScaleX()
     
    double
    getScaleY()
     
    double
    getTranslateX()
     
    double
    getTranslateY()
     
    void
    scale(double sx, double sy)
    Scales this transform.
    void
    setTransform(com.macrofocus.geom.Rectangle2D oldRect, com.macrofocus.geom.Rectangle2D newRect)
    Defines this transform.
    com.macrofocus.geom.Point2D
    transform(com.macrofocus.geom.Point2D src)
    Transforms the source argument.
    com.macrofocus.geom.Rectangle2D
    transform(com.macrofocus.geom.Rectangle2D src)
    Transforms the source argument.
    void
    translate(double tx, double ty)
    Translates this transform.

    Methods inherited from class java.lang.Object

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

  • Constructor Details

    • RectangularTransform

      public RectangularTransform()
      Creates an identity transform.

    • RectangularTransform

      public RectangularTransform(com.macrofocus.geom.Rectangle2D oldRect, com.macrofocus.geom.Rectangle2D newRect)
      Creates a RectangularTransform that transforms from one rectangle to another.
      Parameters:
      oldRect - the initial rectangle.
      newRect - the final (transformed) rectangle.

    • RectangularTransform

      public RectangularTransform(double sx, double sy, double tx, double ty)
      Creates a RectangularTransform.
      Parameters:
      sx - the scaleX factor
      sy - the scaleY factor
      tx - the x-translation
      ty - the y-translation

  • Method Details

    • transform

      public com.macrofocus.geom.Rectangle2D transform(com.macrofocus.geom.Rectangle2D src)
      Transforms the source argument.
      Parameters:
      src - the initial rectangle.
      Returns:
      the Rectangle2D to store the results in.

    • transform

      public com.macrofocus.geom.Point2D transform(com.macrofocus.geom.Point2D src)
      Transforms the source argument.
      Parameters:
      src - the initial point.
      Returns:
      the Point2D to store the results in.

    • create

      public static com.macrofocus.geom.AffineTransform create(com.macrofocus.geom.Rectangle2D oldRect, com.macrofocus.geom.Rectangle2D newRect)
      Creates an AffineTransform that maps one argument to another.
      Parameters:
      oldRect - the initial rectangle.
      newRect - the final (transformed) rectangle.
      Returns:
      an AffineTransform that maps from the old to the new rectangle.

    • setTransform

      public void setTransform(com.macrofocus.geom.Rectangle2D oldRect, com.macrofocus.geom.Rectangle2D newRect)
      Defines this transform.
      Parameters:
      oldRect - the initial rect.
      newRect - what this transform should turn the initial rectangle into.

    • translate

      public void translate(double tx, double ty)
      Translates this transform.
      Parameters:
      tx - the x-translation.
      ty - the y-translation.

    • getScaleX

      public double getScaleX()

    • getScaleY

      public double getScaleY()

    • getTranslateX

      public double getTranslateX()

    • getTranslateY

      public double getTranslateY()

    • scale

      public void scale(double sx, double sy)
      Scales this transform.
      Parameters:
      sx - the factor to scale X-values by.
      sy - the factor to scale Y-values by.

    • createAffineTransform

      public com.macrofocus.geom.AffineTransform createAffineTransform()
      Converts this to an AffineTransform.

    • createInverse

      public RectangularTransform createInverse()
      Creates a transform that is the inverse of this one.