net.sourceforge.chart2d
Class ChartColors

java.lang.Object
  |
  +--net.sourceforge.chart2d.ChartColors

public class ChartColors

extends java.lang.Object

Automates the choosing of colors for charts. You tell it how many colors you need, and it will give you an array of appropriate colors for charting.
There are two types of colors, NATURAL and PASTEL, that you can ask for. NATURAL colors are more pure than PASTEL colors.
The number of unique colors it can create is 18.
The maximum number of colors you can ask from it is, 32000. After 18, it will simply repeat the original 18 back to you, up until the number that you asked for. The returned array of colors will always have exactly the number of colors that you ask for. The primary colors are blue, green, red, yellow, cyan, and magenta. The colors are three sets of these, varying among brightness.

Field Summary

static int	NATURAL NATURAL colors are more pure than PASTEL colors.
static int	PASTEL PASTEL colors have other colors besides their primary ones added to them.

Constructor Summary

ChartColors()
Creates Automate Colors class with default values.

Method Summary

java.awt.Color[]	getColorsArray() Returns an array of Colors of the length requested in the setNumColors command.
int	getColorsType() Gets the type of colors.
void	setColorsType(int type) Sets the type of colors.
void	setNumColors(int num) Sets the number of colors to return in an array.

Methods inherited from class java.lang.Object

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

Field Detail

NATURAL

public static final int NATURAL

NATURAL colors are more pure than PASTEL colors. For example, a red color will be pure red, no green or blue will be added.

PASTEL

public static final int PASTEL

PASTEL colors have other colors besides their primary ones added to them. For example, a red color may appear pink or orange instead of red.

Constructor Detail

ChartColors

public ChartColors()

Creates Automate Colors class with default values. Default color type is NATURAL.
Default number of colors is 0.

Method Detail

setColorsType

public void setColorsType(int type)

Sets the type of colors. Possible values are NATURAL and PASTEL.

Parameters:

type - The type of colors in the array.

setNumColors

public void setNumColors(int num)

Sets the number of colors to return in an array. Minimum value is 0.
Maximum value is 32,000.
Only 18 colors will be unique. After the first 18, the original 18 will simple be repeated back up until the number requested.

Parameters:

num - How many colors in the array.

getColorsType

public int getColorsType()

Gets the type of colors. Possible values are NATURAL and PASTEL.

Returns:

The type of colors in the array.

getColorsArray

public java.awt.Color[] getColorsArray()

Returns an array of Colors of the length requested in the setNumColors command.

Returns:

The color array.