DGtal::ColorBrightnessColorMap< PValue, PDefaultColor > Class Template Reference

Aim: This class template may be used to (linearly) convert scalar values in a given range into a color with given lightness. More...

#include <DGtal/io/colormaps/ColorBrightnessColorMap.h>

Public Types
typedef PValue	Value

Public Member Functions
	ColorBrightnessColorMap (const PValue &min, const PValue &max, const Color color=Color(DGTAL_RED_COMPONENT(PDefaultColor), DGTAL_GREEN_COMPONENT(PDefaultColor), DGTAL_BLUE_COMPONENT(PDefaultColor)))
Color	operator() (const PValue &value) const
	~ColorBrightnessColorMap ()
	ColorBrightnessColorMap (const ColorBrightnessColorMap &other)
ColorBrightnessColorMap &	operator= (const ColorBrightnessColorMap &other)
void	selfDisplay (std::ostream &out) const
bool	isValid () const
const PValue &	min () const
const PValue &	max () const

Static Public Member Functions
static Color	getColor (const Color color, const PValue &min, const PValue &max, const PValue &value)

Protected Member Functions
	ColorBrightnessColorMap ()

Protected Attributes
PValue	myMin
PValue	myMax
Color	myColor

Detailed Description

template<typename PValue, int PDefaultColor = DGTAL_RGB2INT( 255, 255, 255 )>
class DGtal::ColorBrightnessColorMap< PValue, PDefaultColor >

Aim: This class template may be used to (linearly) convert scalar values in a given range into a color with given lightness.

Description of template class 'ColorBrightnessColorMap'

The ColorBrightnessColorMap can be used either as a functor object (the value range is given at the object's construction, together with the reference color) which converts a value into a LibBoard::Color structure, or it can be used through a static method taking both the range and the value as parameters.

The code below shows a possible use of this class.

#include "DGtal/io/Color.h"
#include "ColorBrightnessColorMap.h"
// ...
{
  ColorBrightnessColorMap<float> blueShade(0.0f,1.0f,Color::Blue);
  Color red = blueShade(1.0f);
  Color blue1 = blueShade(0.5f);
  // Or, equivalently:
  Color blue2 = ColorBrightnessColorMap<float>::getColor(Color::Blue,0.0f,1.0f,0.5f);
}

Template Parameters

PValue	The type of the range values.
PDefaultColor	The default color as an integer built using the DGTAL_RGB2INT macro.

Definition at line 89 of file ColorBrightnessColorMap.h.

Member Typedef Documentation

Value

template<typename PValue , int PDefaultColor = DGTAL_RGB2INT( 255, 255, 255 )>

typedef PValue DGtal::ColorBrightnessColorMap< PValue, PDefaultColor >::Value

Definition at line 93 of file ColorBrightnessColorMap.h.

Constructor & Destructor Documentation

ColorBrightnessColorMap() [1/3]

template<typename PValue , int PDefaultColor = DGTAL_RGB2INT( 255, 255, 255 )>

DGtal::ColorBrightnessColorMap< PValue, PDefaultColor >::ColorBrightnessColorMap	(	const PValue &	min,
		const PValue &	max,
		const Color	color = Color(DGTAL_RED_COMPONENT(PDefaultColor), DGTAL_GREEN_COMPONENT(PDefaultColor), DGTAL_BLUE_COMPONENT(PDefaultColor))
	)

Constructor.

Parameters

min	The lower bound of the value range.
max	The upper bound of the value range.
color	The color associated with the upper bound.

~ColorBrightnessColorMap()

template<typename PValue , int PDefaultColor = DGTAL_RGB2INT( 255, 255, 255 )>

DGtal::ColorBrightnessColorMap< PValue, PDefaultColor >::~ColorBrightnessColorMap

(

)

Destructor.

ColorBrightnessColorMap() [2/3]

template<typename PValue , int PDefaultColor = DGTAL_RGB2INT( 255, 255, 255 )>

DGtal::ColorBrightnessColorMap< PValue, PDefaultColor >::ColorBrightnessColorMap

(

const ColorBrightnessColorMap< PValue, PDefaultColor > &

other

)

Copy constructor.

Parameters

other

the object to clone.

ColorBrightnessColorMap() [3/3]

template<typename PValue , int PDefaultColor = DGTAL_RGB2INT( 255, 255, 255 )>

DGtal::ColorBrightnessColorMap< PValue, PDefaultColor >::ColorBrightnessColorMap ( )

protected

Constructor. Forbidden by default (protected to avoid g++ warnings).

Member Function Documentation

getColor()

template<typename PValue , int PDefaultColor = DGTAL_RGB2INT( 255, 255, 255 )>

static Color DGtal::ColorBrightnessColorMap< PValue, PDefaultColor >::getColor ( const Color  color, const PValue &  min, const PValue &  max, const PValue &  value  )

static

Computes the color associated with a value in a given range.

Parameters

color	The color associated with the upper bound.
min	The lower bound of the value range.
max	The upper bound of the value range.
value	A value within the value range.

Returns

A color whose brightness linearly depends on the position of [value] within the range [min]..[max].

isValid()

template<typename PValue , int PDefaultColor = DGTAL_RGB2INT( 255, 255, 255 )>

bool DGtal::ColorBrightnessColorMap< PValue, PDefaultColor >::isValid

(

)

const

Checks the validity/consistency of the object.

Returns

'true' if the object is valid, 'false' otherwise.

max()

template<typename PValue , int PDefaultColor = DGTAL_RGB2INT( 255, 255, 255 )>

const PValue& DGtal::ColorBrightnessColorMap< PValue, PDefaultColor >::max

(

)

const

Returns the upper bound of the value range.

Returns

The upper bound of the value range.

min()

template<typename PValue , int PDefaultColor = DGTAL_RGB2INT( 255, 255, 255 )>

const PValue& DGtal::ColorBrightnessColorMap< PValue, PDefaultColor >::min

(

)

const

Returns the lower bound of the value range.

Returns

The lower bound of the value range.

operator()()

template<typename PValue , int PDefaultColor = DGTAL_RGB2INT( 255, 255, 255 )>

Color DGtal::ColorBrightnessColorMap< PValue, PDefaultColor >::operator()

(

const PValue &

value

)

const

Computes the color associated with a value in a given range.

Parameters

value

A value within the value range.

Returns

A color whose brightness linearly depends on the position of [value] within the current range.

operator=()

template<typename PValue , int PDefaultColor = DGTAL_RGB2INT( 255, 255, 255 )>

ColorBrightnessColorMap& DGtal::ColorBrightnessColorMap< PValue, PDefaultColor >::operator=

(

const ColorBrightnessColorMap< PValue, PDefaultColor > &

other

)

Assignment.

Parameters

other

the object to copy.

Returns

a reference on 'this'.

selfDisplay()

template<typename PValue , int PDefaultColor = DGTAL_RGB2INT( 255, 255, 255 )>

void DGtal::ColorBrightnessColorMap< PValue, PDefaultColor >::selfDisplay

(

std::ostream &

out

)

const

Writes/Displays the object on an output stream.

Parameters

out	the output stream where the object is written.

Field Documentation

myColor

template<typename PValue , int PDefaultColor = DGTAL_RGB2INT( 255, 255, 255 )>

Color DGtal::ColorBrightnessColorMap< PValue, PDefaultColor >::myColor

protected

The color of the upper bound value.

Definition at line 197 of file ColorBrightnessColorMap.h.

myMax

template<typename PValue , int PDefaultColor = DGTAL_RGB2INT( 255, 255, 255 )>

PValue DGtal::ColorBrightnessColorMap< PValue, PDefaultColor >::myMax

protected

The lower bound of the value range.

Definition at line 196 of file ColorBrightnessColorMap.h.

myMin

template<typename PValue , int PDefaultColor = DGTAL_RGB2INT( 255, 255, 255 )>

PValue DGtal::ColorBrightnessColorMap< PValue, PDefaultColor >::myMin

protected

The lower bound of the value range.

Definition at line 195 of file ColorBrightnessColorMap.h.

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The documentation for this class was generated from the following file:

• ColorBrightnessColorMap.h