Qwt3D::StandardColor类 参考

Standard color model for Plot3D - implements the data driven operator()(double x, double y, double z) 更多...

#include <qwt3d_color.h>

类 Qwt3D::StandardColor 继承关系图:

类
class	PrivateData

Public 成员函数
	StandardColor (Qwt3D::Plot3D *data, unsigned size=100)
	Constructs a StandardColor object
Qwt3D::RGBA	operator() (double x, double y, double z) const override
	Returns the color for a given z value
void	setColorVector (Qwt3D::ColorVector const &cv)
	Assigns a new ColorVector
void	reset (unsigned size=100)
void	setAlpha (double a)
	Sets the alpha value for all colors
Qwt3D::ColorVector &	createVector (Qwt3D::ColorVector &vec) override
	Creates color vector for ColorLegend - essentially a copy from the internal vector
void	setPreset (const QString &presetName, unsigned size=100)
	Set colormap from a preset name
Public 成员函数 继承自 Qwt3D::Color
virtual Qwt3D::RGBA	operator() (Qwt3D::Triple const &t) const
void	destroy () const

详细描述

Standard color model for Plot3D - implements the data driven operator()(double x, double y, double z)

The class has a ColorVector representing z values, which will be used by operator()(double x, double y, double z)

构造及析构函数说明

StandardColor()

StandardColor::StandardColor(Plot3D *data, unsigned size) StandardColor::reset void(unsigned size) ( Qwt3D::Plot3D *  data, unsigned  size = 100  )

explicit

Constructs a StandardColor object

参数

data	Plot3D data source for color mapping
size	Number of color entries in the color vector

Creates a standard color mapping with the specified size and resets the color vector to default gradient values.

Resets the color vector to the default colormap

参数

size	Number of color entries to generate

Creates a color vector of the given size sampled from the viridis colormap, the modern perceptually-uniform default.

成员函数说明

createVector()

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

overridevirtual

Creates color vector for ColorLegend - essentially a copy from the internal vector

参数

vec	The vector to fill

返回

Reference to the filled color vector

重载 Qwt3D::Color .

operator()()

RGBA StandardColor::operator() ( double  x, double  y, double  z  ) const

overridevirtual

Returns the color for a given z value

参数

z	The z coordinate value for color lookup

返回

RGBA color corresponding to the z value

Maps the z value to a color index based on the data hull's z range.

实现了 Qwt3D::Color.

setAlpha()

void StandardColor::setAlpha

(

double

a

)

Sets the alpha value for all colors

参数

a	Alpha value (0.0 to 1.0)

setColorVector()

void StandardColor::setColorVector

(

Qwt3D::ColorVector const &

cv

)

Assigns a new ColorVector

参数

cv	The new color vector (also overwrites the constructor's size argument)

setPreset()

void StandardColor::setPreset	(	const QString &	presetName,
		unsigned	size = 100
	)

Set colormap from a preset name

参数

presetName	Name of the colormap preset (e.g. "viridis", "plasma", "jet")
size	Number of color stops to sample from the colormap

Uses QwtColorMapPreset to create a QwtLinearColorMap and samples it at the specified number of points to fill the internal color vector.

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该类的文档由以下文件生成:

• /home/runner/work/QWT/QWT/src/plot3d/qwt3d_color.h
• /home/runner/work/QWT/QWT/src/plot3d/qwt3d_color.cpp