Struct HSBColor

Hue-Saturation-Brightness Color class to store a color value, and to manage conversions to and from RGB colors in the System.Drawing.Color struct.

Inherited Members

System.ValueType.Equals(System.Object)

System.ValueType.GetHashCode()

System.ValueType.ToString()

System.Object.Equals(System.Object, System.Object)

System.Object.GetType()

System.Object.ReferenceEquals(System.Object, System.Object)

Namespace: ZedGraph

Assembly: ZedGraph.dll

Syntax

[Serializable]
public struct HSBColor

Remarks

This class is based on code from http://www.cs.rit.edu/~ncs/color/ by Eugene Vishnevsky. This struct stores the hue, saturation, brightness, and alpha values internally as System.Byte values from 0 to 255. The hue represents a fraction of the 360 degrees of color space available. The saturation is the color intensity, where 0 represents gray scale and 255 is the most colored. For the brightness, 0 represents black and 255 represents white.

Constructors

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HSBColor(Color)

Constructor to load an HSBColor struct from a system System.Drawing.Color struct.

Declaration

public HSBColor(Color color)

Parameters

Type	Name	Description
System.Drawing.Color	color	An rgb System.Drawing.Color struct containing the equivalent color you want to generate

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HSBColor(Int32, Int32, Int32)

Constructor to load an HSBColor struct from hue, saturation and brightness values

Declaration

public HSBColor(int h, int s, int b)

Parameters

Type	Name	Description
System.Int32	h	The color hue value, ranging from 0 to 255
System.Int32	s	The color saturation (intensity) value, ranging from 0 (gray scale) to 255 (most colored)
System.Int32	b	The brightness value, ranging from 0 (black) to 255 (white)

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HSBColor(Int32, Int32, Int32, Int32)

Constructor to load an HSBColor struct from hue, saturation, brightness, and alpha values

Declaration

public HSBColor(int a, int h, int s, int b)

Parameters

Type	Name	Description
System.Int32	a	The alpha value (opacity), ranging from 0 (transparent) to 255 (opaque)
System.Int32	h	The color hue value, ranging from 0 to 255
System.Int32	s	The color saturation (intensity) value, ranging from 0 (gray scale) to 255 (most colored)
System.Int32	b	The brightness value, ranging from 0 (black) to 255 (white)

Fields

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A

The alpha value (opacity), ranging from 0 (transparent) to 255 (opaque).

Declaration

public byte A

Field Value

Type	Description
System.Byte

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B

The brightness value, ranging from 0 (black) to 255 (white).

Declaration

public byte B

Field Value

Type	Description
System.Byte

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H

The color hue value, ranging from 0 to 255.

Declaration

public byte H

Field Value

Type	Description
System.Byte

Remarks

This property is actually a rescaling of the 360 degrees on the color wheel to 255 possible values. Therefore, every 42.5 units is a new sector, with the following convention: red=0, yellow=42.5, green=85, cyan=127.5, blue=170, magenta=212.5

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S

The color saturation (intensity) value, ranging from 0 (gray scale) to 255 (most colored).

Declaration

public byte S

Field Value

Type	Description
System.Byte

Methods

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FromRGB()

Convert a System.Drawing.Color value to an equivalent HSBColor value.

Declaration

public HSBColor FromRGB()

Returns

Type	Description
HSBColor	An equivalent HSBColor struct

Remarks

This method is based on code from http://www.cs.rit.edu/~ncs/color/ by Eugene Vishnevsky.

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FromRGB(Color)

Convert a System.Drawing.Color value to an equivalent HSBColor value.

Declaration

public static HSBColor FromRGB(Color rgbColor)

Parameters

Type	Name	Description
System.Drawing.Color	rgbColor	The System.Drawing.Color struct to be converted

Returns

Type	Description
HSBColor	An equivalent HSBColor struct

Remarks

This method is based on code from http://www.cs.rit.edu/~ncs/color/ by Eugene Vishnevsky.

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ToRGB()

Convert this HSBColor value to an equivalent System.Drawing.Color value.

Declaration

public Color ToRGB()

Returns

Type	Description
System.Drawing.Color	An equivalent System.Drawing.Color struct, compatible with the GDI+ library

Remarks

This method is based on code from http://www.cs.rit.edu/~ncs/color/ by Eugene Vishnevsky.

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ToRGB(HSBColor)

Convert an HSBColor value to an equivalent System.Drawing.Color value.

Declaration

public static Color ToRGB(HSBColor hsbColor)

Parameters

Type	Name	Description
HSBColor	hsbColor	The HSBColor struct to be converted

Returns

Type	Description
System.Drawing.Color	An equivalent System.Drawing.Color struct, compatible with the GDI+ library

Remarks

This method is based on code from http://www.cs.rit.edu/~ncs/color/ by Eugene Vishnevsky.

Operators

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Implicit(HSBColor to Color)

Implicit conversion operator to convert directly from an HSBColor to a System.Drawing.Color struct.

Declaration

public static implicit operator Color(HSBColor hsbColor)

Parameters

Type	Name	Description
HSBColor	hsbColor	The HSBColor struct to be converted

Returns

Type	Description
System.Drawing.Color	An equivalent System.Drawing.Color struct that can be used in the GDI+ graphics library