Public Types
enum	ColorInterpolation { ciRGB, ciHSV }

enum	GradientPreset { gpGrayscale, gpHot, gpCold, gpNight, gpCandy, gpGeography, gpIon, gpThermal, gpPolar, gpSpectrum, gpJet, gpHues }

Public Member Functions
	QCPColorGradient (GradientPreset preset=gpCold)

bool	operator== (const QCPColorGradient &other) const

bool	operator!= (const QCPColorGradient &other) const

int	levelCount () const

QMap< double, QColor >	colorStops () const

ColorInterpolation	colorInterpolation () const

bool	periodic () const

void	setLevelCount (int n)

void	setColorStops (const QMap< double, QColor > &colorStops)

void	setColorStopAt (double position, const QColor &color)

void	setColorInterpolation (ColorInterpolation interpolation)

void	setPeriodic (bool enabled)

void	colorize (const double data, const QCPRange &range, QRgb scanLine, int n, int dataIndexFactor=1, bool logarithmic=false)

QRgb	color (double position, const QCPRange &range, bool logarithmic=false)

void	loadPreset (GradientPreset preset)

void	clearColorStops ()

QCPColorGradient	inverted () const

Detailed Description

Definition at line 1900 of file qcustomplot.h.

Member Enumeration Documentation

Defines the color spaces in which color interpolation between gradient stops can be performed.

Enumerator
ciRGB	Color channels red, green and blue are linearly interpolated.
ciHSV	Color channels hue, saturation and value are linearly interpolated (The hue is interpolated over the shortest angle distance)

Definition at line 1909 of file qcustomplot.h.

Defines the available presets that can be loaded with loadPreset. See the documentation there for an image of the presets.

Enumerator
gpGrayscale	Continuous lightness from black to white (suited for non-biased data representation)
gpHot	Continuous lightness from black over firey colors to white (suited for non-biased data representation)
gpCold	Continuous lightness from black over icey colors to white (suited for non-biased data representation)
gpNight	Continuous lightness from black over weak blueish colors to white (suited for non-biased data representation)
gpCandy	Blue over pink to white.
gpGeography	Colors suitable to represent different elevations on geographical maps.
gpIon	Half hue spectrum from black over purple to blue and finally green (creates banding illusion but allows more precise magnitude estimates)
gpThermal	Colors suitable for thermal imaging, ranging from dark blue over purple to orange, yellow and white.
gpPolar	Colors suitable to emphasize polarity around the center, with blue for negative, black in the middle and red for positive values.
gpSpectrum	An approximation of the visible light spectrum (creates banding illusion but allows more precise magnitude estimates)
gpJet	Hue variation similar to a spectrum, often used in numerical visualization (creates banding illusion but allows more precise magnitude estimates)
gpHues	Full hue cycle, with highest and lowest color red (suitable for periodic data, such as angles and phases, see setPeriodic)

Definition at line 1918 of file qcustomplot.h.

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