Class ColorUtilities
ColorUtilities
contains a set of tools to perform
common color operations easily.
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Constructor Summary
Constructors -
Method Summary
Modifier and TypeMethodDescriptionstatic Color
HSLtoRGB
(float h, float s, float l) Returns the RGB equivalent of a given HSL (Hue/Saturation/Luminance) color.static int[]
HSLtoRGB
(float h, float s, float l, int[] rgb) Returns the RGB equivalent of a given HSL (Hue/Saturation/Luminance) color.private static float
hue2RGB
(float v1, float v2, float vH) static float[]
RGBtoHSL
(int r, int g, int b) Returns the HSL (Hue/Saturation/Luminance) equivalent of a given RGB color.static float[]
RGBtoHSL
(int r, int g, int b, float[] hsl) Returns the HSL (Hue/Saturation/Luminance) equivalent of a given RGB color.static float[]
Returns the HSL (Hue/Saturation/Luminance) equivalent of a given RGB color.static float[]
Returns the HSL (Hue/Saturation/Luminance) equivalent of a given RGB color.
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Constructor Details
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ColorUtilities
private ColorUtilities()
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Method Details
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RGBtoHSL
Returns the HSL (Hue/Saturation/Luminance) equivalent of a given RGB color. All three HSL components are between 0.0 and 1.0.
- Parameters:
color
- the RGB color to convert- Returns:
- a new array of 3 floats corresponding to the HSL components
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RGBtoHSL
Returns the HSL (Hue/Saturation/Luminance) equivalent of a given RGB color. All three HSL components are between 0.0 and 1.0.
- Parameters:
color
- the RGB color to converthsl
- a pre-allocated array of floats; can be null- Returns:
hsl
if non-null, a new array of 3 floats otherwise- Throws:
IllegalArgumentException
- ifhsl
has a length lower than 3
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RGBtoHSL
public static float[] RGBtoHSL(int r, int g, int b) Returns the HSL (Hue/Saturation/Luminance) equivalent of a given RGB color. All three HSL components are between 0.0 and 1.0.
- Parameters:
r
- the red component, between 0 and 255g
- the green component, between 0 and 255b
- the blue component, between 0 and 255- Returns:
- a new array of 3 floats corresponding to the HSL components
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RGBtoHSL
public static float[] RGBtoHSL(int r, int g, int b, float[] hsl) Returns the HSL (Hue/Saturation/Luminance) equivalent of a given RGB color. All three HSL components are floats between 0.0 and 1.0.
- Parameters:
r
- the red component, between 0 and 255g
- the green component, between 0 and 255b
- the blue component, between 0 and 255hsl
- a pre-allocated array of floats; can be null- Returns:
hsl
if non-null, a new array of 3 floats otherwise- Throws:
IllegalArgumentException
- ifhsl
has a length lower than 3
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HSLtoRGB
Returns the RGB equivalent of a given HSL (Hue/Saturation/Luminance) color.
- Parameters:
h
- the hue component, between 0.0 and 1.0s
- the saturation component, between 0.0 and 1.0l
- the luminance component, between 0.0 and 1.0- Returns:
- a new
Color
object equivalent to the HSL components
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HSLtoRGB
public static int[] HSLtoRGB(float h, float s, float l, int[] rgb) Returns the RGB equivalent of a given HSL (Hue/Saturation/Luminance) color. All three RGB components are integers between 0 and 255.
- Parameters:
h
- the hue component, between 0.0 and 1.0s
- the saturation component, between 0.0 and 1.0l
- the luminance component, between 0.0 and 1.0rgb
- a pre-allocated array of ints; can be null- Returns:
rgb
if non-null, a new array of 3 ints otherwise- Throws:
IllegalArgumentException
- ifrgb
has a length lower than 3
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hue2RGB
private static float hue2RGB(float v1, float v2, float vH)
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