Package smile.plot.swing

Class Contour

java.lang.Object
smile.plot.swing.Shape
smile.plot.swing.Plot
smile.plot.swing.Contour
public class Contour extends Plot
A contour plot is a graphical technique for representing a 3-dimensional surface by plotting constant z slices, called contours, on a 2-dimensional format. That is, given a value for z, lines are drawn for connecting the (x, y) coordinates where that z value occurs. The contour plot is an alternative to a 3-D surface plot.

  • Constructor Summary

    Constructors
    Constructor
    Description
    Contour(double[][] z, double[] levels)
    Constructor.
    Contour(double[][] z, int numLevels, boolean logScale)
    Constructor.
    Contour(double[] x, double[] y, double[][] z, double[] levels)
    Constructor.
    Contour(double[] x, double[] y, double[][] z, int numLevels, boolean logScale)
    Constructor.

  • Method Summary

    Modifier and Type
    Method
    Description
    Canvas
    canvas()
    Returns a canvas of the plot.
    double[]
    getLowerBound()
    Returns the lower bound of data.
    double[]
    getUpperBound()
    Returns the upper bound of data.
    static Contour
    of(double[][] z)
    Creates a contour plot with 10 isolines.
    static Contour
    of(double[][] z, int numLevels)
    Creates a contour plot.
    static Contour
    of(double[] x, double[] y, double[][] z)
    Creates a contour plot with 10 isolines.
    static Contour
    of(double[] x, double[] y, double[][] z, int numLevels)
    Creates a contour plot.
    void
    paint(Graphics g)
    Draws the shape.

    Methods inherited from class smile.plot.swing.Plot

    legends, toolbar, tooltip

    Methods inherited from class java.lang.Object

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

  • Constructor Details

    • Contour

      public Contour(double[][] z, int numLevels, boolean logScale)
      Constructor.
      Parameters:
      z - the data matrix to create contour plot.
      numLevels - the number of contour levels.
      logScale - true to interpolate contour levels in logarithmic scale.

    • Contour

      public Contour(double[][] z, double[] levels)
      Constructor.
      Parameters:
      z - the data matrix to create contour plot.
      levels - the level values of contours.

    • Contour

      public Contour(double[] x, double[] y, double[][] z, int numLevels, boolean logScale)
      Constructor.
      Parameters:
      x - the x coordinates of the data grid of z. Must be in ascending order.
      y - the y coordinates of the data grid of z. Must be in ascending order.
      z - the data matrix to create contour plot.
      numLevels - the number of contour levels.
      logScale - true to interpolate contour levels in logarithmical scale.

    • Contour

      public Contour(double[] x, double[] y, double[][] z, double[] levels)
      Constructor.
      Parameters:
      x - the x coordinates of the data grid of z. Must be in ascending order.
      y - the y coordinates of the data grid of z. Must be in ascending order.
      z - the data matrix to create contour plot.
      levels - the level values of contours. Must be strictly increasing and finite.

  • Method Details

    • getLowerBound

      public double[] getLowerBound()
      Description copied from class: Plot
      Returns the lower bound of data.
      Specified by:
      getLowerBound in class Plot

    • getUpperBound

      public double[] getUpperBound()
      Description copied from class: Plot
      Returns the upper bound of data.
      Specified by:
      getUpperBound in class Plot

    • paint

      public void paint(Graphics g)
      Description copied from class: Shape
      Draws the shape.
      Specified by:
      paint in class Shape

    • canvas

      public Canvas canvas()
      Description copied from class: Plot
      Returns a canvas of the plot.
      Overrides:
      canvas in class Plot

    • of

      public static Contour of(double[][] z)
      Creates a contour plot with 10 isolines.
      Parameters:
      z - the data matrix to create contour plot.

    • of

      public static Contour of(double[][] z, int numLevels)
      Creates a contour plot.
      Parameters:
      z - the data matrix to create contour plot.
      numLevels - the number of contour levels.

    • of

      public static Contour of(double[] x, double[] y, double[][] z)
      Creates a contour plot with 10 isolines.
      Parameters:
      x - the x coordinates of the data grid of z. Must be in ascending order.
      y - the y coordinates of the data grid of z. Must be in ascending order.
      z - the data matrix to create contour plot.

    • of

      public static Contour of(double[] x, double[] y, double[][] z, int numLevels)
      Creates a contour plot.
      Parameters:
      x - the x coordinates of the data grid of z. Must be in ascending order.
      y - the y coordinates of the data grid of z. Must be in ascending order.
      z - the data matrix to create contour plot.
      numLevels - the number of contour levels.