Package org.jCharts.axisChart.axis.scale

Class ChartScale

  • public class ChartScale
extends java.lang.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

      All Methods Static Methods Instance Methods Concrete Methods 
      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​(java.lang.String[] args)  

      • Methods inherited from class java.lang.Object

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

    • Field Detail

      • 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 Detail

      • 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 Detail

      • main

        public static void main​(java.lang.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