QSurface3DSeries 类

QSurface3DSeries 类以 3D 表面图表示数据系列。 更多...

头：	#include <QSurface3DSeries>
CMake:	find_package(Qt6 REQUIRED COMPONENTS Graphs) target_link_libraries(mytarget PRIVATE Qt6::Graphs)
qmake:	QT += graphs
实例化：	Surface3DSeries
继承：	QAbstract3DSeries
状态：	技术预览

• 所有成员列表，包括继承成员
• QSurface3DSeries is part of Qt Graphs C++ Classes for 3D .

公共类型

enum	DrawFlag { DrawWireframe, DrawSurface, DrawSurfaceAndWireframe }
flags	DrawFlags

特性

dataProxy : QSurfaceDataProxy* drawMode : QSurface3DSeries::DrawFlags flatShadingEnabled : bool flatShadingSupported : const bool

selectedPoint : QPoint texture : QImage textureFile : QString wireframeColor : QColor

公共函数

	QSurface3DSeries (QObject * parent = nullptr)
	QSurface3DSeries (QSurfaceDataProxy * dataProxy , QObject * parent = nullptr)
virtual	~QSurface3DSeries () override
QSurfaceDataProxy *	dataProxy () const
QSurface3DSeries::DrawFlags	drawMode () const
bool	isFlatShadingEnabled () const
bool	isFlatShadingSupported () const
QPoint	selectedPoint () const
void	setDataProxy (QSurfaceDataProxy * proxy )
void	setDrawMode (QSurface3DSeries::DrawFlags mode )
void	setFlatShadingEnabled (bool enabled )
void	setSelectedPoint (const QPoint & position )
void	setTexture (const QImage & texture )
void	setTextureFile (const QString & filename )
void	setWireframeColor (const QColor & color )
QImage	texture () const
QString	textureFile () const
QColor	wireframeColor () const

信号

void	dataProxyChanged (QSurfaceDataProxy * proxy )
void	drawModeChanged (QSurface3DSeries::DrawFlags mode )
void	flatShadingEnabledChanged (bool enable )
void	flatShadingSupportedChanged (bool enable )
void	selectedPointChanged (const QPoint & position )
void	textureChanged (const QImage & image )
void	textureFileChanged (const QString & filename )
void	wireframeColorChanged (const QColor & color )

静态公共成员

QPoint

invalidSelectionPosition ()

详细描述

This class manages the series specific visual elements, as well as the series data (via a data proxy).

If no data proxy is set explicitly for the series, the series creates a default proxy. Setting another proxy will destroy the existing proxy and all data added to it.

The object mesh set via the QAbstract3DSeries::mesh property defines the selection pointer shape in a surface series.

QSurface3DSeries supports the following format tags for QAbstract3DSeries::setItemLabelFormat ():

@xTitle	Title from x-axis
@yTitle	Title from y-axis
@zTitle	Title from z-axis
@xLabel	Item value formatted using the format of the x-axis. For more information, see QValue3DAxis::setLabelFormat ().
@yLabel	Item value formatted using the format of the y-axis. For more information, see QValue3DAxis::setLabelFormat ().
@zLabel	Item value formatted using the format of the z-axis. For more information, see QValue3DAxis::setLabelFormat ().
@seriesName	Name of the series

例如：

proxy->setItemLabelFormat(QStringLiteral("@valueTitle for (@rowLabel, @colLabel): %.1f"));
					

另请参阅 Qt Graphs Data Handling with 3D .

成员类型文档编制

enum QSurface3DSeries:: DrawFlag
flags QSurface3DSeries:: DrawFlags

The drawing mode of the surface. Values of this enumeration can be combined with the OR operator.

常量	值	描述
QSurface3DSeries::DrawWireframe	1	Only the grid is drawn.
QSurface3DSeries::DrawSurface	2	Only the surface is drawn.
QSurface3DSeries::DrawSurfaceAndWireframe	DrawWireframe | DrawSurface	Both the surface and grid are drawn.

The DrawFlags type is a typedef for QFlags <DrawFlag>. It stores an OR combination of DrawFlag values.

特性文档编制

dataProxy : QSurfaceDataProxy *

This property holds the active data proxy.

The series assumes ownership of any proxy set to it and deletes any previously set proxy when a new one is added. The proxy cannot be null or set to another series.

访问函数：

QSurfaceDataProxy *	dataProxy () const
void	setDataProxy (QSurfaceDataProxy * proxy )

通知程序信号：

void	dataProxyChanged (QSurfaceDataProxy * proxy )

drawMode : QSurface3DSeries::DrawFlags

The drawing mode.

Possible values are the values of DrawFlag . Clearing all flags is not allowed.

访问函数：

QSurface3DSeries::DrawFlags	drawMode () const
void	setDrawMode (QSurface3DSeries::DrawFlags mode )

通知程序信号：

void	drawModeChanged (QSurface3DSeries::DrawFlags mode )

flatShadingEnabled : bool

This property holds whether surface flat shading is enabled.

Preset to true 在默认情况下。

When disabled, the normals on the surface are interpolated making the edges look round. When enabled, the normals are kept the same on a triangle making the color of the triangle solid. This makes the data more readable from the model.

注意： Flat shaded surfaces require at least GLSL version 1.2 with GL_EXT_gpu_shader4 extension. The value of the flatShadingSupported property indicates whether flat shading is supported at runtime.

访问函数：

bool	isFlatShadingEnabled () const
void	setFlatShadingEnabled (bool enabled )

通知程序信号：

void	flatShadingEnabledChanged (bool enable )

[read-only] flatShadingSupported : const bool

This property holds whether surface flat shading is supported by the current system.

Flat shading for surfaces requires at least GLSL version 1.2 with GL_EXT_gpu_shader4 extension. If true , flat shading for surfaces is supported.

注意： This read-only property is set to its correct value after the first render pass. Until then it is always true .

访问函数：

bool	isFlatShadingSupported () const

通知程序信号：

void	flatShadingSupportedChanged (bool enable )

selectedPoint : QPoint

This property holds the surface grid point that is selected in the series.

访问函数：

QPoint	selectedPoint () const
void	setSelectedPoint (const QPoint & position )

通知程序信号：

void	selectedPointChanged (const QPoint & position )

texture : QImage

This property holds the texture for the surface as a QImage .

设置空 QImage clears the texture.

访问函数：

QImage	texture () const
void	setTexture (const QImage & texture )

通知程序信号：

void	textureChanged (const QImage & image )

textureFile : QString

This property holds the texture for the surface as a file.

Setting an empty file name clears the texture.

访问函数：

QString	textureFile () const
void	setTextureFile (const QString & filename )

通知程序信号：

void	textureFileChanged (const QString & filename )

wireframeColor : QColor

This property holds the color for the surface wireframe.

访问函数：

QColor	wireframeColor () const
void	setWireframeColor (const QColor & color )

通知程序信号：

void	wireframeColorChanged (const QColor & color )

成员函数文档编制

[explicit] QSurface3DSeries:: QSurface3DSeries ( QObject * parent = nullptr)

Constructs a surface 3D series with the parent parent .

[explicit] QSurface3DSeries:: QSurface3DSeries ( QSurfaceDataProxy * dataProxy , QObject * parent = nullptr)

Constructs a surface 3D series with the data proxy dataProxy and the parent parent .

[override virtual noexcept] QSurface3DSeries:: ~QSurface3DSeries ()

Deletes the surface 3D series.

[static] QPoint QSurface3DSeries:: invalidSelectionPosition ()

返回 QPoint signifying an invalid selection position. This is set to the selectedPoint property to clear the selection from this series.

另请参阅 QAbstract3DGraph::clearSelection ().

void QSurface3DSeries:: setSelectedPoint (const QPoint & position )

Selects a surface grid point at the position position in the data array of the series specified by a row and a column.

Only one point can be selected at a time.

To clear selection from this series, invalidSelectionPosition () is set as position . If this series is added to a graph, the graph can adjust the selection according to user interaction or if it becomes invalid.

Removing rows from or inserting rows to the series before the row of the selected point will adjust the selection so that the same point will stay selected.

注意： setter 函数对于特性 selectedPoint .

另请参阅 selectedPoint () 和 QAbstract3DGraph::clearSelection ().

内容

• 公共类型

• 特性

• 公共函数

• 信号

• 静态公共成员

• 详细描述