Class ColorScaleModel

java.lang.Object

cnuphys.magfield.ColorScaleModel

public class ColorScaleModel
extends Object

Field Summary

Fields

Modifier and Type	Field	Description
protected Color[]	colors	The array of colors
protected double[]	values	The array of values

Constructor Summary

Constructors

Constructor	Description
ColorScaleModel(double[] values, Color[] colors)	This creates a ColorScaleModel for converting a value into a color.
ColorScaleModel(String comment, double[] values, Color[] colors)	This creates a ColorScaleModel for converting a value into a color.
ColorScaleModel(String comment, double[] values, Color[] colors, int precision, int numberOfRows)	This creates a ColorScaleModel for converting a value into a color.

Method Summary

Modifier and Type	Method	Description
Color	getColor(double value)	Given a value, returns the corresponding color.
Color	getColor(double value, boolean useColorInterpolation)	Given a value, returns the corresponding color.
Color[]	getColors()	Get the color array.
String	getComment()	Get the comment of the color scale.
double	getMaxValue()	Get the maximum value of the values array.
double	getMinValue()	Get the minimum value of the values array.
int	getNumberOfRows()
int	getPrecision()	Get the precision used for display.
Color	getTooBigColor()	Get the too-big color.
Color	getTooSmallColor()	Get the too-small color.
double[]	getValues()	Get the values array.
void	setTooBigColor(Color tooBigColor)
void	setTooSmallColor(Color tooSmallColor)

Methods inherited from class java.lang.Object

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

Field Details

colors

protected Color[] colors

The array of colors

values

protected double[] values

The array of values

Constructor Details

ColorScaleModel

public ColorScaleModel(double[] values,
 Color[] colors)

This creates a ColorScaleModel for converting a value into a color. The values array should be sorted in ascending order. In any rate, it will be. Ideally, there is one more entry in the values array, so that each color fits in the space between 2 values. However, this is not a requirement. It will still give sensible results. Also, the value array is NOT assumed to be equally spaced.

Parameters:

values - the array of values.

colors - the array of colors.

ColorScaleModel

public ColorScaleModel(String comment,
 double[] values,
 Color[] colors)

This creates a ColorScaleModel for converting a value into a color. The values array should be sorted in ascending order. In any rate, it will be. Ideally, there is one more entry in the values array, so that each color fits in the space between 2 values. However, this is not a requirement. It will still give sensible results. Also, the value array is NOT assumed to be equally spaced.

Parameters:

comment - an extra comment.

values - the array of values.

colors - the array of colors.

ColorScaleModel

public ColorScaleModel(String comment,
 double[] values,
 Color[] colors,
 int precision,
 int numberOfRows)

This creates a ColorScaleModel for converting a value into a color. The values array should be sorted in ascending order. In any rate, it will be. Ideally, there is one more entry in the values array, so that each color fits in the space between 2 values. However, this is not a requirement. It will still give sensible results. Also, the value array is NOT assumed to be equally spaced.

Parameters:

comment - an extra comment.

values - the array of values.

colors - the array of colors.

precision - the number of decimals to display. Use 0 for integers.

numberOfRows - the number of rows to us displaying the colors.

Method Details

getColor

public Color getColor(double value)

Given a value, returns the corresponding color. Example:

values: {0, 2, 4, 6, 8}

colors: {R, G, B, Y}

then

value = 1.77 -> R

value = -1 -> tooSmallColor

value = 8.01 -> tooBigColor

value = 4 (exactly) -> G

Parameters:

value - the for which we want the color.

Returns:

the color corresponding to the value.

getColor

public Color getColor(double value,
 boolean useColorInterpolation)

Given a value, returns the corresponding color. Example:

values: {0, 2, 4, 6, 8}

colors: {R, G, B, Y}

then

value = 1.77 -> R

value = -1 -> tooSmallColor

value = 8.01 -> tooBigColor

value = 4 (exactly) -> G

Parameters:

value - the for which we want the color.

useColorInterpolation - if true, use color interpolation.

Returns:

the color corresponding to the value.

getMinValue

public double getMinValue()

Get the minimum value of the values array.

Returns:

the minimum value of the values array.

getMaxValue

public double getMaxValue()

Get the maximum value of the values array.

Returns:

the maximum value of the values array.

getColors

public Color[] getColors()

Get the color array.

Returns:

the color array.

getTooBigColor

public Color getTooBigColor()

Get the too-big color.

Returns:

the color used for a "too big" value.

getTooSmallColor

public Color getTooSmallColor()

Get the too-small color.

Returns:

the color used for a "too small" value.

getValues

public double[] getValues()

Get the values array.

Returns:

the values array.

getComment

public String getComment()

Get the comment of the color scale.

Returns:

the color scale comment.

getPrecision

public int getPrecision()

Get the precision used for display.

Returns:

the precision used for display.

getNumberOfRows

public int getNumberOfRows()

Returns:

the numberOfRows

setTooSmallColor

public void setTooSmallColor(Color tooSmallColor)

Parameters:

tooSmallColor - the tooSmallColor to set

setTooBigColor

public void setTooBigColor(Color tooBigColor)

Parameters:

tooBigColor - the tooBigColor to set