org.jCharts.axisChart.axis.scale
Class ChartScale

java.lang.Object
  |
  +--org.jCharts.axisChart.axis.scale.ChartScale

public class ChartScale

extends java.lang.Object

Field Summary

(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

ChartScale()

ChartScale(double[][] data)
Constructor.

Method Summary

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. * * @param 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. * * @param data double[][] to look into for the max * @return double the largest value found

getMin

private double getMin(double[][] data)

Helper method that finds the smallest double in the 2D array of doubles. * * @param data double[][] to look into for the min * @return double the smallest value found

getYMax

public double getYMax()

* Accessor for the yMax property. This property represents the largest value in the dataset. * * @return 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. * * @return 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. * * @return double grid line spacing

getYStart

public double getYStart()

* Accessor for the yStart property. The value which the first grid line represents. * * @return 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. * * @return 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. * * @return 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. * * @return 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. * * @return AxisProperties with yStart, yDelta, segments and rounding set.

PropertyException