Class mxSpline1D

java.lang.Object
com.mxgraph.util.mxSpline1D
public class mxSpline1D extends Object
One dimension of a spline curve

  • Field Summary

    Fields
    Modifier and Type
    Field
    Description
    protected double[]
    a
     
    protected double[]
    b
     
    protected double[]
    c
     
    protected double[]
    d
     
    protected double[]
    len
     
    protected double[]
    pos1D
     

  • Constructor Summary

    Constructors
    Constructor
    Description
    mxSpline1D(double[] controlPointProportions, double[] positions1D)
    Creates a new Spline.

  • Method Summary

    Modifier and Type
    Method
    Description
    double
    getDx(double x)
    Returns the first derivation at x.
    double
    getFastValue(double x)
    Returns an interpolated value.
    double
    getValue(double x)
    Returns an interpolated value.
    void
    setValues(double[] controlPointProportions, double[] positions1D)
    Set values for this Spline.
    void
    solve(double[][] A, double[] b)
    Solves Ax=b and stores the solution in b.

    Methods inherited from class Object

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

  • Field Details

    • len

      protected double[] len

    • pos1D

      protected double[] pos1D

    • a

      protected double[] a

    • b

      protected double[] b

    • c

      protected double[] c

    • d

      protected double[] d

  • Constructor Details

    • mxSpline1D

      public mxSpline1D(double[] controlPointProportions, double[] positions1D)
      Creates a new Spline.
      Parameters:
      controlPointProportions - the proportion along the curve, from 0->1 that each control point lies on
      positions1D - the co-ordinate position in the current dimension that each control point lies on

  • Method Details

    • setValues

      public void setValues(double[] controlPointProportions, double[] positions1D)
      Set values for this Spline.
      Parameters:
      controlPointProportions - the proportion along the curve, from 0->1 that each control point lies on
      positions1D - the co-ordinate position in the current dimension that each control point lies on

    • getValue

      public double getValue(double x)
      Returns an interpolated value.
      Parameters:
      x -
      Returns:
      the interpolated value

    • getFastValue

      public double getFastValue(double x)
      Returns an interpolated value. To be used when a long sequence of values are required in order, but ensure checkValues() is called beforehand to ensure the boundary checks from getValue() are made
      Parameters:
      x -
      Returns:
      the interpolated value

    • getDx

      public double getDx(double x)
      Returns the first derivation at x.
      Parameters:
      x -
      Returns:
      the first derivation at x

    • solve

      public void solve(double[][] A, double[] b)
      Solves Ax=b and stores the solution in b.