com.approximatrix.charting.render.colorscale
Class SimpleColorScale

java.lang.Object
  com.approximatrix.charting.render.colorscale.AbstractColorScale
      com.approximatrix.charting.render.colorscale.SimpleColorScale

All Implemented Interfaces:

ColorScale

public class SimpleColorScale
extends AbstractColorScale

Implements a simple color scale based on explicit maximum and minimum values specified. Red at low end, green at the center, and blue at the high end.

Author:

armstrong

Field Summary

protected static java.awt.Color	FAILED_CALC Returns this color whenever the max and min values are identical
private double	maxV The highest value in the scale range
private double	minV The lowest value in the scale range

Constructor Summary

SimpleColorScale()
Default constructor

SimpleColorScale(double min, double max)
Constructor excepting min and max range values as doubles

SimpleColorScale(int min, int max)
Constructor excepting min and max range values as integers

Method Summary

java.awt.Color	getColor(double value) Returns a color based on a double
java.awt.Color	getColor(int value) Returns a color based on an integer

Methods inherited from class com.approximatrix.charting.render.colorscale.AbstractColorScale

getColors, getColors

Methods inherited from class java.lang.Object

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

Field Detail

FAILED_CALC

protected static final java.awt.Color FAILED_CALC

Returns this color whenever the max and min values are identical

minV

private double minV

The lowest value in the scale range

maxV

private double maxV

The highest value in the scale range

Constructor Detail

SimpleColorScale

public SimpleColorScale()

Default constructor

SimpleColorScale

public SimpleColorScale(double min,
                        double max)

Constructor excepting min and max range values as doubles

Parameters:

min - the lowest expected value

max - the highest expected value

SimpleColorScale

public SimpleColorScale(int min,
                        int max)

Constructor excepting min and max range values as integers

Parameters:

min - the lowest expected value

max - the highest expected value

Method Detail

getColor

public java.awt.Color getColor(double value)

Returns a color based on a double

Parameters:

value - the data space value

Returns:

a valid Color object

getColor

public java.awt.Color getColor(int value)

Returns a color based on an integer

Parameters:

value - the data space value

Returns:

a valid Color object