#include <qwt3dColor.h>

Inheritance diagram for BarColor:

Collaboration diagram for BarColor:

Public Member Functions
	BarColor (Qwt3D::Plot3D *data, unsigned size=100, double min=0, double max=0)
	Initializes with data and set up a ColorVector with a size of 100 z values (default);. More...

Qwt3D::ColorVector &	createVector (Qwt3D::ColorVector &vec)

Qwt3D::RGBA	operator() (double x, double y, double z) const
	Receives z-dependend color from ColorVector. More...

void	reset (unsigned size=100)
	Resets the standard colors;. More...

void	setAlpha (double a)
	Sets unitary alpha value for all colors. More...

void	setColorVector (Qwt3D::ColorVector const &cv)

Public Attributes
double	maxZ

double	minZ

Protected Attributes
Qwt3D::ColorVector	colors_

Qwt3D::Plot3D *	data_

Detailed Description

Definition at line 18 of file qwt3dColor.h.

Constructor & Destructor Documentation

BarColor::BarColor	(	Qwt3D::Plot3D *	data,
		unsigned	size = `100`,
		double	min = `0`,
		double	max = `0`
	)

explicit

Initializes with data and set up a ColorVector with a size of 100 z values (default);.

Definition at line 16 of file qwt3dColor.cpp.

References data_, max, maxZ, min, minZ, and reset().

     : data_(data)
 {
   Q_ASSERT(data_);
   reset(size);
 
   minZ = min;
   maxZ = max;
 }

Member Function Documentation

Qwt3D::ColorVector& BarColor::createVector ( Qwt3D::ColorVector & vec )

inline

Creates a color vector used by ColorLegend. This is essentially a copy from the internal used vector.

Returns: The vector created

Definition at line 33 of file qwt3dColor.h.

33 {vec = colors_; return vec;}

BarColor::colors_

Qwt3D::ColorVector colors_

Definition: qwt3dColor.h:38

Qwt3D::RGBA BarColor::operator()	(	double	x,
		double	y,
		double	z
	)		const

Receives z-dependend color from ColorVector.

Definition at line 69 of file qwt3dColor.cpp.

References colors_, data_, maxZ, and minZ.

   {
     Q_ASSERT(data_);
 
     int index = (int)((colors_.size() - 1) * (z - minZ) / (maxZ - minZ));
     if (index < 0)
       index = 0;
     if ((unsigned int)index > colors_.size() - 1)
       index = (int)(colors_.size() - 1);
     return colors_[index];
   }

void BarColor::reset ( unsigned size = 100 )

Resets the standard colors;.

Definition at line 26 of file qwt3dColor.cpp.

References colors_.

Referenced by BarColor().

 {
   unsigned int i;
   colors_ = Qwt3D::ColorVector(size);
   Qwt3D::RGBA elem;
 
   double dsize = size;
 
   for (i = 0; i != size; ++i)
     {
       elem.r = i / dsize;
       elem.g = i / dsize / 4;
       elem.b = 1 - i / dsize;
       elem.a = 1.0;
       colors_[i] = elem;
     }
 }

void BarColor::setAlpha ( double a )

Sets unitary alpha value for all colors.

Definition at line 52 of file qwt3dColor.cpp.

References colors_.

 {
   unsigned int i;
 
   if (a < 0 || a > 1)
     return;
 
   Qwt3D::RGBA elem;
 
   for (i = 0; i != colors_.size(); ++i)
     {
       elem = colors_[i];
       elem.a = a;
       colors_[i] = elem;
     }
 }