Class Scaler

    • Constructor Summary

      Constructors 
      Constructor Description
      Scaler​(double x0, double y0, double a00, double a01, double a10, double a11)
      Create a scaler where y0 = x0 + a00*x0 + a01*x1, y1 = x0+a10*x0+a11*x1.
    • Method Summary

      All Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      Scaler add​(Scaler trans)
      Add a second affine transformation to this one and return the composite transformation.
      void dump​(java.io.PrintStream out)
      Show the scaler.
      java.lang.String getDescription()
      What is a descrition for this component?
      protected int getInputDimension()
      What is the dimensionality of the input to a Scaler
      java.lang.String getName()
      What is a name for this component?
      protected int getOutputDimension()
      What is the dimensionality of the output of a Scaler
      double[] getParams()  
      void interchangeAxes()
      Interchange the X and Y axes
      Scaler inverse()
      Return the inverse transformation.
      boolean isInverse​(Transformer trans)
      Is this an inverse of the current scaler?
      double scale()
      What is the scale of this transformation? This is defined as the ratio of the lengths between a unit transformation on input.
      void transform​(double[] x, double[] y)
      Scale a single point where the user supplies the output.
      • Methods inherited from class java.lang.Object

        clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
    • Constructor Detail

      • Scaler

        public Scaler​(double x0,
                      double y0,
                      double a00,
                      double a01,
                      double a10,
                      double a11)
        Create a scaler where y0 = x0 + a00*x0 + a01*x1, y1 = x0+a10*x0+a11*x1.
        Parameters:
        x0 - The X offset
        y0 - The Y offset
        a00 - Coefficient of the transformation matrix.
        a01 - Coefficient of the transformation matrix.
        a10 - Coefficient of the transformation matrix.
        a11 - Coefficient of the transformation matrix.
    • Method Detail

      • getParams

        public double[] getParams()
      • getOutputDimension

        protected int getOutputDimension()
        What is the dimensionality of the output of a Scaler
        Specified by:
        getOutputDimension in class Transformer
      • getInputDimension

        protected int getInputDimension()
        What is the dimensionality of the input to a Scaler
        Specified by:
        getInputDimension in class Transformer
      • getName

        public java.lang.String getName()
        What is a name for this component?
        Specified by:
        getName in interface Component
      • getDescription

        public java.lang.String getDescription()
        What is a descrition for this component?
        Specified by:
        getDescription in interface Component
      • transform

        public void transform​(double[] x,
                              double[] y)
        Scale a single point where the user supplies the output.
        Specified by:
        transform in class Transformer
        Parameters:
        x - The input point (should be double[2])
        y - The output point (should be double[2])
      • add

        public Scaler add​(Scaler trans)
        Add a second affine transformation to this one and return the composite transformation.
        Parameters:
        trans - A second transformation which is applied after the transformation described in 'this'.
        Returns:
        The combined transformation.
      • scale

        public double scale()
        What is the scale of this transformation? This is defined as the ratio of the lengths between a unit transformation on input. and the output.
      • interchangeAxes

        public void interchangeAxes()
        Interchange the X and Y axes
      • dump

        public void dump​(java.io.PrintStream out)
        Show the scaler.