Colors Class Reference

Utility functions related to colors. More...

#include <Colors.h>

Static Public Member Functions
static std::vector< std::string >	getList ()
	Get a list of useful colors.
static double	hueToRgb (double p, double q, double t)
	Transforms a Color given in the HLS System to RGB.
static std::array< double, 3 >	hlsToRgb (double h, double l, double s)
	Transforms a Color given in the HLS System to RGB. More...
static std::string	getWheelColor (int degree)
	Get a color from the wheel of colors. More...

Detailed Description

Utility functions related to colors.

Definition at line 22 of file Colors.h.

Member Function Documentation

getWheelColor()

std::string getWheelColor ( int  degree )

static

Get a color from the wheel of colors.

Parameters

degree

the degree viewed form the center of the color wheel (greater 0)

Definition at line 71 of file Colors.cc.

{
  double hue(degree % 360 / 360.);
  double saturation = 0.75;
  double lightness = 0.5;
 
  std::array<double, 3> rgb = Colors::hlsToRgb(hue, lightness, saturation);
  std::ostringstream oss;
  oss << "rgb(" << rgb[0] * 100 << "%, " << rgb[1] * 100 << "%, " << rgb[2] * 100 << "%)";
  return oss.str();
}

hlsToRgb()

std::array< double, 3 > hlsToRgb ( double  h, double  l, double  s  )

static

Transforms a Color given in the HLS System to RGB.

Parameters

h	Hue ranging from 0 to 1.
l	Lighness.
s	Saturation.

Returns

Array containing rgb-values in the order red, green, blue.

Definition at line 56 of file Colors.cc.

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

• tracking/trackFindingCDC/display/include/Colors.h
• tracking/trackFindingCDC/display/src/Colors.cc