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`
在 QML：	Surface3DSeries
继承：	QAbstract3DSeries

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

dataArray : QSurfaceDataArray
dataProxy : QSurfaceDataProxy*
drawMode : QSurface3DSeries::DrawFlags
flatShadingSupported : const bool
selectedPoint : QPoint

shading : QSurface3DSeries::Shading
texture : QImage
textureFile : QString
wireframeColor : QColor

公共函数

	QSurface3DSeries (QObject * parent = nullptr)
	QSurface3DSeries (QSurfaceDataProxy * dataProxy , QObject * parent = nullptr)
virtual	~QSurface3DSeries () override
void	clearArray ()
void	clearRow (qsizetype rowIndex )
QSurfaceDataArray	dataArray () &&
const QSurfaceDataArray &	dataArray () const &
QSurfaceDataProxy *	dataProxy () const
QSurface3DSeries::DrawFlags	drawMode () const
bool	isFlatShadingSupported () const
QPoint	selectedPoint () const
void	setDataArray (const QSurfaceDataArray & newDataArray )
void	setDataProxy (QSurfaceDataProxy * proxy )
void	setDrawMode (QSurface3DSeries::DrawFlags mode )
void	setSelectedPoint (QPoint position )
void	setShading (const QSurface3DSeries::Shading shading )
void	setTexture (const QImage & texture )
void	setTextureFile (const QString & filename )
void	setWireframeColor (QColor color )
QSurface3DSeries::Shading	shading () const
QImage	texture () const
QString	textureFile () const
QColor	wireframeColor () const

信号

void	dataArrayChanged (const QSurfaceDataArray & array )
void	dataProxyChanged (QSurfaceDataProxy * proxy )
void	drawModeChanged (QSurface3DSeries::DrawFlags mode )
void	flatShadingSupportedChanged (bool enabled )
void	selectedPointChanged (QPoint position )
void	shadingChanged (const QSurface3DSeries::Shading shading )
void	textureChanged (const QImage & image )
void	textureFileChanged (const QString & filename )
void	wireframeColorChanged (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).

Regarding the proxy-series relationship, it is crucial to highlight a couple of key points. In this context, data is stored in series and users can access the dataset through the series. This series is controlled or represented by a proxy object. Thus, the proxy can be used to manage various operations on the data and update the actual dataset. However, it is necessary to create a series associated with this proxy to edit the dataset.

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 the series.

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::labelFormat .
@yLabel	Item value formatted using the format of the y-axis. For more information, see QValue3DAxis::labelFormat .
@zLabel	Item value formatted using the format of the z-axis. For more information, see QValue3DAxis::labelFormat .
@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

dataArray : QSurfaceDataArray

Data array for the series.

Holds the reference of the data array.

dataArrayChanged signal is emitted when data array is set, unless newDataArray is identical to the previous one.

注意： Before doing anything regarding the dataArray, a series must be created for the relevant proxy.

访问函数：

const QSurfaceDataArray &	dataArray () const &
QSurfaceDataArray	dataArray () &&
void	setDataArray (const QSurfaceDataArray & newDataArray )

通知程序信号：

void	dataArrayChanged (const QSurfaceDataArray & array )

另请参阅 clearRow (qsizetype rowIndex) and clearArray ().

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 )

`[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 enabled )

selectedPoint : QPoint

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

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 the 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 into the series before the row of the selected point will adjust the selection so that the same point will stay selected.

访问函数：

QPoint	selectedPoint () const
void	setSelectedPoint (QPoint position )

通知程序信号：

void	selectedPointChanged (QPoint position )

另请参阅 Q3DGraphsWidgetItem::clearSelection ().

shading : QSurface3DSeries::Shading

This property holds whether surface flat shading is enabled.

Preset to QSurface3DSeries::Shading::Flat 在默认情况下。

When disabled, the normals on the surface are interpolated making the edges look round. When visible, 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：

QSurface3DSeries::Shading	shading () const
void	setShading (const QSurface3DSeries::Shading shading )

通知程序信号：

void	shadingChanged (const QSurface3DSeries::Shading shading )

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 (QColor color )

通知程序信号：

void	wireframeColorChanged (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.

void QSurface3DSeries:: clearArray ()

Clears the existing array.

void QSurface3DSeries:: clearRow ( qsizetype rowIndex )

Clears the existing row in the array according to given rowIndex .

`[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 Q3DGraphsWidgetItem::clearSelection ().

QSurface3DSeries 类

公共类型

特性

公共函数

信号

静态公共成员

详细描述

成员类型文档编制

enum QSurface3DSeries:: DrawFlag flags QSurface3DSeries:: DrawFlags

特性文档编制

dataArray : QSurfaceDataArray

dataProxy : QSurfaceDataProxy *

drawMode : QSurface3DSeries::DrawFlags

[read-only] flatShadingSupported : const bool

selectedPoint : QPoint

shading : QSurface3DSeries::Shading

texture : QImage

textureFile : QString

wireframeColor : QColor

成员函数文档编制

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

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

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

void QSurface3DSeries:: clearArray ()

void QSurface3DSeries:: clearRow ( qsizetype rowIndex )

[static] QPoint QSurface3DSeries:: invalidSelectionPosition ()

内容

enum QSurface3DSeries:: DrawFlag
flags QSurface3DSeries:: DrawFlags

`[read-only]` flatShadingSupported : const bool

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

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

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

`[static]` QPoint QSurface3DSeries:: invalidSelectionPosition ()