#include <opennurbs_color.h>

Public Types
enum	RGBA_byte_index : unsigned int { kRedByteIndex = 0, kGreenByteIndex = 1, kBlueByteIndex = 2, kAlphaByteIndex = 3 }

enum	RGBA_shift : unsigned int

enum	TextFormat : unsigned char { TextFormat::Unset = 0, TextFormat::FractionalRGB = 1, TextFormat::FractionalRGBa = 2, TextFormat::FractionalRGBA = 3, TextFormat::DecimalRGB = 4, TextFormat::DecimalRGBa = 5, TextFormat::DecimalRGBA = 6, TextFormat::HexadecimalRGB = 7, TextFormat::HexadecimalRGBa = 8, TextFormat::HexadecimalRGBA = 9, TextFormat::HSV = 10, TextFormat::HSVa = 11, TextFormat::HSVA = 12 }

Public Member Functions
	ON_Color ()=default

	ON_Color (const ON_Color &)=default

	ON_Color (int red, int green, int blue)
	Sets A = 0. More...

	ON_Color (int red, int green, int blue, int alpha)

	ON_Color (unsigned int colorref)

	~ON_Color ()=default

int	Alpha () const
	( 0 to 255 ) (0 = opaque, 255 = transparent) More...

int	Blue () const
	( 0 to 255 ) More...

int	Compare (const ON_Color &) const
	< 0 if this < arg, 0 ir this==arg, > 0 if this > arg More...

double	FractionAlpha () const
	( 0.0 to 1.0 ) (0.0 = opaque, 1.0 = transparent) More...

double	FractionBlue () const
	( 0.0 to 1.0 ) More...

double	FractionGreen () const
	( 0.0 to 1.0 ) More...

double	FractionRed () const
	( 0.0 to 1.0 ) More...

int	Green () const
	( 0 to 255 ) More...

double	Hue () const

	operator unsigned int () const
	Conversion to Windows COLORREF in little endian RGBA order. More...

ON_Color &	operator= (const ON_Color &)=default

int	Red () const
	( 0 to 255 ) More...

double	Saturation () const
	Returns 0.0 (gray) to 1.0 (saturated) More...

void	SetAlpha (int alpha)

void	SetFractionalAlpha (double alpha)

void	SetFractionalRGB (double red, double green, double blue)

void	SetFractionalRGBA (double red, double green, double blue, double alpha)
	input args More...

void	SetHSV (double h, double s, double v)

void	SetRGB (int red, int green, int blue)

void	SetRGBA (int red, int green, int blue, int alpha)

const ON_wString	ToString (ON_Color::TextFormat format, wchar_t separator, bool bFormatUnsetColor, class ON_TextLog &text_log) const

void	ToText (ON_Color::TextFormat format, wchar_t separator, bool bFormatUnsetColor, class ON_TextLog &text_log) const

double	Value () const
	Returns 0.0 (black) to 1.0 (white) More...

unsigned int	WindowsRGB () const

Static Public Member Functions
static const ON_Color	RandomColor ()

static const ON_Color	RandomColor (ON__UINT32 seed)

static const ON_Color	RandomColor (ON__UINT32 seed, ON_Interval hue_range, ON_Interval saturation_range, ON_Interval value_range)

static const ON_Color	RandomColor (ON_Interval hue_range, ON_Interval saturation_range, ON_Interval value_range)

Static Public Attributes
static const ON_Color	Black
	0x00000000u More...

static const ON_Color	Gray105
	R = G = B = 105 (medium dark) More...

static const ON_Color	Gray126
	R = G = B = 128 (medium) More...

static const ON_Color	Gray160
	R = G = B = 160 (medium light) More...

static const ON_Color	Gray230
	R = G = B = 230 (light) More...

static const ON_Color	Gray250
	R = G = B = 250 (lightest) More...

static const ON_Color	SaturatedBlue
	0x00FF0000u on little endan, 0x0000FF00u on big endian More...

static const ON_Color	SaturatedCyan
	0x00FFFF00u on little endan, 0x00FFFF00u on big endian More...

static const ON_Color	SaturatedGold
	0x0000BFFFu on little endan, 0xFFBF0000u on big endian More...

static const ON_Color	SaturatedGreen
	0x0000FF00u on little endan, 0x00FF0000u on big endian More...

static const ON_Color	SaturatedMagenta
	0x00FF00FFu on little endan, 0xFF00FF00u on big endian More...

static const ON_Color	SaturatedRed
	0x000000FFu on little endan, 0xFF000000u on big endian More...

static const ON_Color	SaturatedYellow
	0x0000FFFFu on little endan, 0xFFFF0000u on big endian More...

static const ON_Color	UnsetColor
	0xFFFFFFFFu More...

static const ON_Color	White
	0x00FFFFFFu on little endan, 0xFFFFFF00u on big endian More...

Detailed Description

NoKeywords

/ / Copyright (c) 1993-2012 Robert McNeel & Associates. All rights reserved. / OpenNURBS, Rhinoceros, and Rhino3D are registered trademarks of Robert / McNeel & Associates. / / THIS SOFTWARE IS PROVIDED "AS IS" WITHOUT EXPRESS OR IMPLIED WARRANTY. / ALL IMPLIED WARRANTIES OF FITNESS FOR ANY PARTICULAR PURPOSE AND OF / MERCHANTABILITY ARE HEREBY DISCLAIMED. /
/ For complete openNURBS copyright information see http://www.opennurbs.org. / ////////////////////////////////////////////////////////////// Class ON_Color

Member Enumeration Documentation

◆ RGBA_byte_index

enum ON_Color::RGBA_byte_index : unsigned int

If you need to use byte indexing to convert RGBA components to and from an unsigned int ON_Color value and want your code to work on both little and big endian computers, then use the RGBA_byte_index enum.

unsigned int u; unsigned char* rgba = rbga[ON_Color::kRedByteIndex] = red value 0 to 255. rbga[ON_Color::kGreenByteIndex] = green value 0 to 255. rbga[ON_Color::kBlueByteIndex] = blue value 0 to 255. rbga[ON_Color::kAlphaByteIndex] = alpha value 0 to 255. ON_Color color = u;

Enumerator
kRedByteIndex	same for both little and big endian computers.
kGreenByteIndex
kBlueByteIndex
kAlphaByteIndex

◆ RGBA_shift

enum ON_Color::RGBA_shift : unsigned int

If you need to use shifting to convert RGBA components to and from an unsigned int ON_COlor value and you want your code to work on both little and big endian computers, use the RGBA_shift enum.

unsigned int u = 0; u |= ((((unsigned int)red) & 0xFFU) << ON_Color::RGBA_shift::kRedShift); u |= ((((unsigned int)green) & 0xFFU) << ON_Color::RGBA_shift::kGreenShift); u |= ((((unsigned int)blue) & 0xFFU) << ON_Color::RGBA_shift::kBlueShift); u |= ((((unsigned int)alpha) & 0xFFU) << ON_Color::RGBA_shift::kAlphaShift); ON_Color color = u;

◆ TextFormat

enum ON_Color::TextFormat : unsigned char

strong

Enumerator
Unset	summary> Indicates no format has been selected. Empty text is created. /summary> summary> red,green,blue as floating point values from 0.0 to 1.0. /summary>
FractionalRGB	summary> red,green,blue as floating point values from 0.0 to 1.0. alpha is appended if it is not zero. /summary>
FractionalRGBa	summary> red,green,blue,alpha as floating point values from 0.0 to 1.0. /summary>
FractionalRGBA	summary> red,green,blue as decimal integers from 0 to 255. /summary>
DecimalRGB	summary> red,green,blue as decimal integers from 0 to 255. alpha is appended if it is not zero. /summary>
DecimalRGBa	summary> red,green,blue,alpha as decimal integers from 0 to 255. /summary>
DecimalRGBA	summary> red,green,blue as hexadecimal integers from 0 to 255. /summary>
HexadecimalRGB	summary> red,green,blue as hexadecimal integers from 0 to 255. alpha is appended if it is not zero. /summary>
HexadecimalRGBa	summary> red,green,blue,alpha as hexadecimal integers from 0 to 255. /summary>
HexadecimalRGBA	summary> hue (0 to 2pi), saturation (0 to 1), value (0 to 1) as floating point values. /summary>
HSV	summary> hue (0 to 2pi), saturation (0 to 1), value (0 to 1) as floating point values. alpha (0 to 1) is appended if it is not zero. /summary>
HSVa	summary> hue (0 to 2pi), saturation (0 to 1), value (0 to 1), alpha (0 to 1) as floating point values. /summary>
HSVA

Constructor & Destructor Documentation

◆ ON_Color() [1/5]

ON_Color::ON_Color ( )

default

◆ ~ON_Color()

ON_Color::~ON_Color ( )

default

◆ ON_Color() [2/5]

ON_Color::ON_Color ( const ON_Color & )

default

◆ ON_Color() [3/5]

ON_Color::ON_Color	(	int	red,
		int	green,
		int	blue
	)

Sets A = 0.

Parameters

red	( 0 to 255 )
green	( 0 to 255 )
blue	( 0 to 255 )

◆ ON_Color() [4/5]

ON_Color::ON_Color	(	int	red,
		int	green,
		int	blue,
		int	alpha
	)

Parameters

red	( 0 to 255 )
green	( 0 to 255 )
blue	( 0 to 255 )
alpha	( 0 to 255 ) (0 = opaque, 255 = transparent)

◆ ON_Color() [5/5]

ON_Color::ON_Color ( unsigned int colorref )

Parameters: colorref - [in] Windows COLORREF in little endian RGBA order.

Member Function Documentation

◆ Alpha()

int ON_Color::Alpha ( ) const

( 0 to 255 ) (0 = opaque, 255 = transparent)

◆ Blue()

int ON_Color::Blue ( ) const

( 0 to 255 )

◆ Compare()

int ON_Color::Compare ( const ON_Color & ) const

< 0 if this < arg, 0 ir this==arg, > 0 if this > arg

◆ FractionAlpha()

double ON_Color::FractionAlpha ( ) const

( 0.0 to 1.0 ) (0.0 = opaque, 1.0 = transparent)

◆ FractionBlue()

double ON_Color::FractionBlue ( ) const

( 0.0 to 1.0 )

◆ FractionGreen()

double ON_Color::FractionGreen ( ) const

( 0.0 to 1.0 )

◆ FractionRed()

double ON_Color::FractionRed ( ) const

( 0.0 to 1.0 )

◆ Green()

int ON_Color::Green ( ) const

( 0 to 255 )

◆ Hue()

double ON_Color::Hue ( ) const

Hue() returns an angle in the range 0 to 2*pi

      0 = red, pi/3 = yellow, 2*pi/3 = green, 
      pi = cyan, 4*pi/3 = blue,5*pi/3 = magenta,
      2*pi = red

◆ operator unsigned int()

ON_Color::operator unsigned int ( ) const

Conversion to Windows COLORREF in little endian RGBA order.

◆ operator=()

ON_Color& ON_Color::operator= ( const ON_Color & )

default

◆ RandomColor() [1/4]

static const ON_Color ON_Color::RandomColor ( )

static

Returns: A random color.

◆ RandomColor() [2/4]

static const ON_Color ON_Color::RandomColor ( ON__UINT32 seed )

static

Returns: A color generated from seed. The color for a given seed will always be the same.

◆ RandomColor() [3/4]

static const ON_Color ON_Color::RandomColor	(	ON__UINT32	seed,
		ON_Interval	hue_range,
		ON_Interval	saturation_range,
		ON_Interval	value_range
	)

static

Parameters: seed - [in] hue_range - [in] range of hues. Use ON_Interval::ZeroToTwoPi for all hues. saturation_range - [in] range of saturations. Use ON_Interval::ZeroToOne for all saturations. value_range - [in] range of values. Use ON_Interval::ZeroToOne for all values. Returns: A color generated from seed. The color for a given seed will always be the same.

◆ RandomColor() [4/4]

static const ON_Color ON_Color::RandomColor	(	ON_Interval	hue_range,
		ON_Interval	saturation_range,
		ON_Interval	value_range
	)

static

Parameters: seed - [in] hue_range - [in] range of hues. Use ON_Interval::ZeroToTwoPi for all hues. saturation_range - [in] range of saturations. Use ON_Interval::ZeroToOne for all saturations. value_range - [in] range of values. Use ON_Interval::ZeroToOne for all values. Returns: A color generated from seed. The color for a given seed will always be the same.

◆ Red()

int ON_Color::Red ( ) const

( 0 to 255 )

◆ Saturation()

double ON_Color::Saturation ( ) const

Returns 0.0 (gray) to 1.0 (saturated)

◆ SetAlpha()

void ON_Color::SetAlpha ( int alpha )

Parameters

alpha alpha in range 0 to 255 (0 = opaque, 255 = transparent)

◆ SetFractionalAlpha()

void ON_Color::SetFractionalAlpha ( double alpha )

Parameters

alpha alpha in range 0.0 to 1.0 (0.0 = opaque, 1.0 = transparent)

◆ SetFractionalRGB()

void ON_Color::SetFractionalRGB	(	double	red,
		double	green,
		double	blue
	)

Parameters

red	red in range 0.0 to 1.0
green	green in range 0.0 to 1.0
blue	blue in range 0.0 to 1.0

◆ SetFractionalRGBA()

void ON_Color::SetFractionalRGBA	(	double	red,
		double	green,
		double	blue,
		double	alpha
	)

input args

Parameters

red	red in range 0.0 to 1.0
green	green in range 0.0 to 1.0
blue	blue in range 0.0 to 1.0
alpha	alpha in range 0.0 to 1.0 (0.0 = opaque, 1.0 = transparent)

◆ SetHSV()

void ON_Color::SetHSV	(	double	h,
		double	s,
		double	v
	)

summary> Formats used by ON_Color::ToText() and ON_Color::ToString(). /summary>

Parameters

h	hue in radians 0 to 2*pi
s	satuation 0.0 = gray, 1.0 = saturated
v	value

◆ SetRGB()

void ON_Color::SetRGB	(	int	red,
		int	green,
		int	blue
	)

Parameters

red	red in range 0 to 255
green	green in range 0 to 255
blue	blue in range 0 to 255

◆ SetRGBA()

void ON_Color::SetRGBA	(	int	red,
		int	green,
		int	blue,
		int	alpha
	)

Parameters

red	red in range 0 to 255
green	green in range 0 to 255
blue	blue in range 0 to 255
alpha	alpha in range 0 to 255 (0 = opaque, 255 = transparent)

◆ ToString()

const ON_wString ON_Color::ToString	(	ON_Color::TextFormat	format,
		wchar_t	separator,
		bool	bFormatUnsetColor,
		class ON_TextLog &	text_log
	)		const

Parameters: format - [in] separator - [in] character to sepearate numbers (unicode code point - UTF-16 surrogate pairs not supported) pass 0 for default. bFormatUnsetColor - [in] If true, ON_Color::UnsetColor will return "UnsetColor". Otherwise ON_Color::UnsetColor will return the empty string. text_log - [in] destination of the text.

◆ ToText()

void ON_Color::ToText	(	ON_Color::TextFormat	format,
		wchar_t	separator,
		bool	bFormatUnsetColor,
		class ON_TextLog &	text_log
	)		const

Parameters: format - [in] If format is ON_Color::TextFormat::Unset, then text_log.ColorFormat is used. separator - [in] character to sepearate numbers (unicode code point - UTF-16 surrogate pairs not supported) pass 0 for default. bFormatUnsetColor - [in] If true, ON_Color::UnsetColor will return "UnsetColor". Otherwise ON_Color::UnsetColor will return the empty string. text_log - [in] destination of the text.

◆ Value()

double ON_Color::Value ( ) const

Returns 0.0 (black) to 1.0 (white)

◆ WindowsRGB()

unsigned int ON_Color::WindowsRGB ( ) const

Description: Call this function when the color is needed in a Windows COLORREF format with alpha = 0; Returns A Windows COLOREF with alpha = 0.

Member Data Documentation

◆ Black

const ON_Color ON_Color::Black

static

0x00000000u

◆ Gray105

const ON_Color ON_Color::Gray105

static

R = G = B = 105 (medium dark)

◆ Gray126

const ON_Color ON_Color::Gray126

static

R = G = B = 128 (medium)

◆ Gray160

const ON_Color ON_Color::Gray160

static

R = G = B = 160 (medium light)

◆ Gray230

const ON_Color ON_Color::Gray230

static

R = G = B = 230 (light)

◆ Gray250

const ON_Color ON_Color::Gray250

static

R = G = B = 250 (lightest)

◆ m_color

unsigned int ON_Color::m_color = 0

On little endian (Intel) computers, m_color has the same byte order as Windows COLORREF values. On little endian computers, m_color = 0xaabbggrr as an unsigned int value. On big endian computers, m_color = 0xrrggbbaa as an unsigned int value rr = red component 0-255 gg = grean component 0-255 bb = blue component 0-255 aa = alpha 0-255. 0 means opaque, 255 means transparent.

◆ m_RGBA

unsigned char ON_Color::m_RGBA[4]

m_colorComponent is a 4 unsigned byte array in RGBA order red component = m_RGBA[ON_Color::RGBA_byte::kRed] grean component = m_RGBA[ON_Color::RGBA_byte::kGreen] blue component = m_RGBA[ON_Color::RGBA_byte::kBlue] alpha component = m_RGBA[ON_Color::RGBA_byte::kAlpha]

◆ SaturatedBlue

const ON_Color ON_Color::SaturatedBlue

static

0x00FF0000u on little endan, 0x0000FF00u on big endian

◆ SaturatedCyan

const ON_Color ON_Color::SaturatedCyan

static

0x00FFFF00u on little endan, 0x00FFFF00u on big endian

◆ SaturatedGold

const ON_Color ON_Color::SaturatedGold

static

0x0000BFFFu on little endan, 0xFFBF0000u on big endian

◆ SaturatedGreen

const ON_Color ON_Color::SaturatedGreen

static

0x0000FF00u on little endan, 0x00FF0000u on big endian

◆ SaturatedMagenta

const ON_Color ON_Color::SaturatedMagenta

static

0x00FF00FFu on little endan, 0xFF00FF00u on big endian

◆ SaturatedRed

const ON_Color ON_Color::SaturatedRed

static

0x000000FFu on little endan, 0xFF000000u on big endian

◆ SaturatedYellow

const ON_Color ON_Color::SaturatedYellow

static

0x0000FFFFu on little endan, 0xFFFF0000u on big endian

◆ UnsetColor

const ON_Color ON_Color::UnsetColor

static

0xFFFFFFFFu

◆ White

const ON_Color ON_Color::White

static

0x00FFFFFFu on little endan, 0xFFFFFF00u on big endian

Public Types

Public Member Functions

Static Public Member Functions

Static Public Attributes

Detailed Description

Member Enumeration Documentation

◆ RGBA_byte_index

◆ RGBA_shift

◆ TextFormat

Constructor & Destructor Documentation

◆ ON_Color() [1/5]

◆ ~ON_Color()

◆ ON_Color() [2/5]

◆ ON_Color() [3/5]

◆ ON_Color() [4/5]

◆ ON_Color() [5/5]

Member Function Documentation

◆ Alpha()

◆ Blue()

◆ Compare()

◆ FractionAlpha()

◆ FractionBlue()

◆ FractionGreen()

◆ FractionRed()

◆ Green()

◆ Hue()

◆ operator unsigned int()

◆ operator=()

◆ RandomColor() [1/4]

◆ RandomColor() [2/4]

◆ RandomColor() [3/4]

◆ RandomColor() [4/4]

◆ Red()

◆ Saturation()

◆ SetAlpha()

◆ SetFractionalAlpha()

◆ SetFractionalRGB()

◆ SetFractionalRGBA()

◆ SetHSV()

◆ SetRGB()

◆ SetRGBA()

◆ ToString()

◆ ToText()

◆ Value()

◆ WindowsRGB()

Member Data Documentation

◆ Black

◆ Gray105

◆ Gray126

◆ Gray160

◆ Gray230

◆ Gray250

◆ m_color

◆ m_RGBA

◆ SaturatedBlue

◆ SaturatedCyan

◆ SaturatedGold

◆ SaturatedGreen

◆ SaturatedMagenta

◆ SaturatedRed

◆ SaturatedYellow

◆ UnsetColor

◆ White