Package org.jCharts.axisChart.axis.scale

Class ChartScale

java.lang.Object
org.jCharts.axisChart.axis.scale.ChartScale
public class ChartScale extends Object

  • Field Summary

    Fields
    Modifier and Type
    Field
    Description
    (package private) int
    rounding
    The suggested value for the rounding of the data.
    (package private) int
    segments
    The number of segments that the suggested yStart, yEnd and yDelta produce.
    (package private) double
    yDelta
    The difference between two points on adjacent grid lines.
    (package private) double
    yEnd
    The value which the last grid line represents.
    (package private) double
    yMax
    The largest number in the dataset.
    (package private) double
    yMin
    The smallest number in the dataset.
    (package private) double
    yStart
    The value which the first grid line represents.

  • Constructor Summary

    Constructors
    Constructor
    Description
    ChartScale()
     
    ChartScale(double[][] data)
    Constructor.

  • Method Summary

    Modifier and Type
    Method
    Description
    private void
    calculate()
    Compute yDelta, yStart, yEnd, segments and rounding.
    AxisProperties
    getAxisProperties()
    Creates and returns a new AxisProperties object based on the internally calculated values of yStart, yDelta, segments and rounding.
    private double
    getMax(double[][] data)
    Helper method that finds the largest double in the 2D array of doubles.
    private double
    getMin(double[][] data)
    Helper method that finds the smallest double in the 2D array of doubles.
    int
    getRounding()
    Accessor for the rounding property.
    int
    getSegments()
    Accessor for the segments property.
    double
    getYDelta()
    Accessor for the yDelta property.
    double
    getYEnd()
    Accessor for the yEnd property.
    double
    getYMax()
    Accessor for the yMax property.
    double
    getYMin()
    Accessor for the yMin property.
    double
    getYStart()
    Accessor for the yStart property.
    static void
    main(String[] args)
     

    Methods inherited from class java.lang.Object

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

  • Field Details

    • yMax

      double yMax
      The largest number in the dataset.

    • yMin

      double yMin
      The smallest number in the dataset.

    • yDelta

      double yDelta
      The difference between two points on adjacent grid lines.

    • yStart

      double yStart
      The value which the first grid line represents.

    • yEnd

      double yEnd
      The value which the last grid line represents.

    • rounding

      int rounding
      The suggested value for the rounding of the data.

    • segments

      int segments
      The number of segments that the suggested yStart, yEnd and yDelta produce.

  • Constructor Details

    • ChartScale

      public ChartScale()

    • ChartScale

      public ChartScale(double[][] data)
      Constructor. Creates a ChartScale object and initializes all of its properties as appropriate for the given data's minimum and maximum values.
      Parameters:
      data - double[] the data for which you would like suggested graph values

  • Method Details

    • main

      public static void main(String[] args)

    • calculate

      private void calculate()
      Compute yDelta, yStart, yEnd, segments and rounding.

    • getMax

      private double getMax(double[][] data)
      Helper method that finds the largest double in the 2D array of doubles.
      Parameters:
      data - double[][] to look into for the max
      Returns:
      double the largest value found

    • getMin

      private double getMin(double[][] data)
      Helper method that finds the smallest double in the 2D array of doubles.
      Parameters:
      data - double[][] to look into for the min
      Returns:
      double the smallest value found

    • getYMax

      public double getYMax()
      Accessor for the yMax property. This property represents the largest value in the dataset.
      Returns:
      double largest value in the associated dataset

    • getYMin

      public double getYMin()
      Accessor for the yMin property. This property represents the smallest value in the dataset.
      Returns:
      double smallest value in the associated dataset

    • getYDelta

      public double getYDelta()
      Accessor for the yDelta property. The difference between any two points on adjacent grid lines.
      Returns:
      double grid line spacing

    • getYStart

      public double getYStart()
      Accessor for the yStart property. The value which the first grid line represents.
      Returns:
      double y axis value for the bottom horizontal grid line.

    • getYEnd

      public double getYEnd()
      Accessor for the yEnd property. The value which the last grid line represents.
      Returns:
      double y axis value for the top horizontal grid line.

    • getRounding

      public int getRounding()
      Accessor for the rounding property. The suggested value for the rounding of the data.
      Returns:
      double rounding value suggestion.

    • getSegments

      public int getSegments()
      Accessor for the segments property. The number of segments that the suggested yStart, yEnd and yDelta produce.
      Returns:
      double segments in the graph as suggested.

    • getAxisProperties

      public AxisProperties getAxisProperties() throws PropertyException
      Creates and returns a new AxisProperties object based on the internally calculated values of yStart, yDelta, segments and rounding.
      Returns:
      AxisProperties with yStart, yDelta, segments and rounding set.
      Throws:
      PropertyException