Package com.treemap
Class RectangularTransform
- java.lang.Object
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- com.treemap.RectangularTransform
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public class RectangularTransform extends java.lang.ObjectThis is a transform that only scales and translates. It is a subset of anAffineTransform, except with no rotation/shearing.
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Constructor Summary
Constructors Constructor Description RectangularTransform()Creates an identity transform.RectangularTransform(double sx, double sy, double tx, double ty)Creates aRectangularTransform.RectangularTransform(com.macrofocus.geom.Rectangle2D oldRect, com.macrofocus.geom.Rectangle2D newRect)Creates aRectangularTransformthat transforms from one rectangle to another.
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Method Summary
All Methods Static Methods Instance Methods Concrete Methods Modifier and Type Method Description static com.macrofocus.geom.AffineTransformcreate(com.macrofocus.geom.Rectangle2D oldRect, com.macrofocus.geom.Rectangle2D newRect)Creates anAffineTransformthat maps one argument to another.com.macrofocus.geom.AffineTransformcreateAffineTransform()Converts this to anAffineTransform.RectangularTransformcreateInverse()Creates a transform that is the inverse of this one.doublegetScaleX()doublegetScaleY()doublegetTranslateX()doublegetTranslateY()voidscale(double sx, double sy)Scales this transform.voidsetTransform(com.macrofocus.geom.Rectangle2D oldRect, com.macrofocus.geom.Rectangle2D newRect)Defines this transform.com.macrofocus.geom.Point2Dtransform(com.macrofocus.geom.Point2D src)Transforms the source argument.com.macrofocus.geom.Rectangle2Dtransform(com.macrofocus.geom.Rectangle2D src)Transforms the source argument.voidtranslate(double tx, double ty)Translates this transform.
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Constructor Detail
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RectangularTransform
public RectangularTransform()
Creates an identity transform.
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RectangularTransform
public RectangularTransform(com.macrofocus.geom.Rectangle2D oldRect, com.macrofocus.geom.Rectangle2D newRect)Creates aRectangularTransformthat transforms from one rectangle to another.- Parameters:
oldRect- the initial rectangle.newRect- the final (transformed) rectangle.
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RectangularTransform
public RectangularTransform(double sx, double sy, double tx, double ty)Creates aRectangularTransform.- Parameters:
sx- the scaleX factorsy- the scaleY factortx- the x-translationty- the y-translation
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Method Detail
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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.
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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.
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create
public static com.macrofocus.geom.AffineTransform create(com.macrofocus.geom.Rectangle2D oldRect, com.macrofocus.geom.Rectangle2D newRect)Creates anAffineTransformthat maps one argument to another.- Parameters:
oldRect- the initial rectangle.newRect- the final (transformed) rectangle.- Returns:
- an
AffineTransformthat maps from the old to the new rectangle.
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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.
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translate
public void translate(double tx, double ty)Translates this transform.- Parameters:
tx- the x-translation.ty- the y-translation.
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getScaleX
public double getScaleX()
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getScaleY
public double getScaleY()
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getTranslateX
public double getTranslateX()
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getTranslateY
public double getTranslateY()
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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.
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createAffineTransform
public com.macrofocus.geom.AffineTransform createAffineTransform()
Converts this to anAffineTransform.
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createInverse
public RectangularTransform createInverse()
Creates a transform that is the inverse of this one.
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