ColorGradient Class Reference

Class for saving color gradients (palettes) More...

#include <Color.h>

Specifications

Class for saving color gradients (palettes)

The constructor takes two mandatory arguments:

• One Int_t that specifies the number of colors the color gradient will have and
• a vector of RGB colors defined using the color structure.

Optionally you can specify:

• A vector containing the spacing of the colors and
• the transparency of the colors

The color gradient can be accessed by calling the methods GetPalette() or GetGradient() that will return a vector of type Int_t or Color_t respectively. If you are using the SetPalette() option that PlottI provides you can use the ColorGradient instance directly.

For a full list and preview of PlottI color gradients see Color Gradients in PlottI

Public Member Functions
	ColorGradient (Int_t nPoints, const vector< color > &rgbEndpoints, const vector< Double_t > &stops={}, Float_t alpha=1)
	Constructor. More...
vector< Int_t >	GetPalette ()
vector< Color_t >	GetGradient ()
Int_t	GetNpoints ()

Constructor & Destructor Documentation

ColorGradient::ColorGradient	(	Int_t	nPoints,
		const vector< color > &	rgbEndpoints,
		const vector< Double_t > &	stops = {},
		Float_t	alpha = 1
	)

Constructor.

Generate color gradient with nPoints colors from rgbEndpoints alpha transparency.

Parameters

[in]	nPoints	Number of colors that will be generated from the color endpoints
[in]	rgbEndpoints	Color endpoints in RGB format using color structure
[in]	stops	Determines spacing of colors in gradient, if not given the colors will be spaced evenly
[in]	alpha	Determines alpha value of colors

Member Function Documentation

vector< Color_t > ColorGradient::GetGradient

(

)

Return stored palette as vector of Color_t

Int_t ColorGradient::GetNpoints

(

)

Return the number of color points of the stored palette

vector< Int_t > ColorGradient::GetPalette

(

)

Return stored palette as vector of Int_t

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

• Color.h