Package gov.nih.mipav.model.algorithms

Class ContourPlot.ColorOperations

java.lang.Object

gov.nih.mipav.model.algorithms.ContourPlot.ColorOperations

Enclosing class:

ContourPlot

public static class ContourPlot.ColorOperations
extends Object

The ColorOperations class contains methods for manipulating 32bit ARGB color values.

Author:

hageldave

Constructor Summary

Constructors

Constructor	Description
ColorOperations()

Method Summary

Modifier and Type	Method	Description
static int	changeSaturation(int argb, double s)	Changes the saturation of a color.
static int	interpolateColor(int c1, int c2, double m)	Linearly interpolates between the two specified colors. c = c1*(1-m) + c2*m
static int	scaleColorAlpha(int color, double m)	Scales the alpha value of a specified integer packed ARGB color by a specified scaling factor m.

Methods inherited from class java.lang.Object

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

Constructor Details

ColorOperations

public ColorOperations()

Method Details

changeSaturation

public static int changeSaturation(int argb,
 double s)

Changes the saturation of a color.

Parameters:

argb - int packed argb color value

s - saturation multilpier (1 is no change, 0 is greyscale)

Returns:

saturation changed color

interpolateColor

public static int interpolateColor(int c1,
 int c2,
 double m)

Linearly interpolates between the two specified colors.
c = c1*(1-m) + c2*m

Parameters:

c1 - integer packed ARGB color value

c2 - integer packed ARGB color value, e.g. 0xff00ff00 for opaque green

m - in [0,1]

Returns:

interpolated color

scaleColorAlpha

public static int scaleColorAlpha(int color,
 double m)

Scales the alpha value of a specified integer packed ARGB color by a specified scaling factor m. New color will be (a*m, r, g, b).

Parameters:

color - of which alpha will be scaled

m - scaling factor

Returns:

integer packed ARGB color with scaled alpha