QAbstract3DGraph Class

The QAbstract3DGraph class provides a window and render loop for graphs. More...

Header: #include <QAbstract3DGraph>
Since: QtDataVisualization 1.0
Inherits: QWindow and QOpenGLFunctions (protected)
Inherited By:

Q3DBars, Q3DScatter, and Q3DSurface

Public Types

enum ElementType { ElementNone, ElementSeries, ElementAxisXLabel, ElementAxisYLabel, ElementAxisZLabel, ElementCustomItem }
enum OptimizationHint { OptimizationDefault, OptimizationStatic }
flags OptimizationHints
enum SelectionFlag { SelectionNone, SelectionItem, SelectionRow, SelectionItemAndRow, ..., SelectionMultiSeries }
flags SelectionFlags
enum ShadowQuality { ShadowQualityNone, ShadowQualityLow, ShadowQualityMedium, ShadowQualityHigh, ..., ShadowQualitySoftHigh }

Properties

  • 16 properties inherited from QWindow
  • 1 property inherited from QObject

Public Functions

virtual ~QAbstract3DGraph()
QAbstract3DInputHandler *activeInputHandler() const
Q3DTheme *activeTheme() const
int addCustomItem(QCustom3DItem *item)
void addInputHandler(QAbstract3DInputHandler *inputHandler)
void addTheme(Q3DTheme *theme)
qreal aspectRatio() const
void clearSelection()
qreal currentFps() const
QList<QCustom3DItem *> customItems() const
bool hasContext() const
qreal horizontalAspectRatio() const
QList<QAbstract3DInputHandler *> inputHandlers() const
bool isOrthoProjection() const
bool isPolar() const
bool isReflection() const
QLocale locale() const
qreal margin() const
bool measureFps() const
OptimizationHints optimizationHints() const
QVector3D queriedGraphPosition() const
float radialLabelOffset() const
qreal reflectivity() const
void releaseCustomItem(QCustom3DItem *item)
void releaseInputHandler(QAbstract3DInputHandler *inputHandler)
void releaseTheme(Q3DTheme *theme)
void removeCustomItem(QCustom3DItem *item)
void removeCustomItemAt(const QVector3D &position)
void removeCustomItems()
QImage renderToImage(int msaaSamples = 0, const QSize &imageSize = QSize())
Q3DScene *scene() const
QAbstract3DAxis *selectedAxis() const
QCustom3DItem *selectedCustomItem() const
int selectedCustomItemIndex() const
ElementType selectedElement() const
int selectedLabelIndex() const
SelectionFlags selectionMode() const
void setActiveInputHandler(QAbstract3DInputHandler *inputHandler)
void setActiveTheme(Q3DTheme *theme)
void setAspectRatio(qreal ratio)
void setHorizontalAspectRatio(qreal ratio)
void setLocale(const QLocale &locale)
void setMargin(qreal margin)
void setMeasureFps(bool enable)
void setOptimizationHints(OptimizationHints hints)
void setOrthoProjection(bool enable)
void setPolar(bool enable)
void setRadialLabelOffset(float offset)
void setReflection(bool enable)
void setReflectivity(qreal reflectivity)
void setSelectionMode(SelectionFlags mode)
void setShadowQuality(ShadowQuality quality)
ShadowQuality shadowQuality() const
virtual bool shadowsSupported() const
QList<Q3DTheme *> themes() const

Signals

void activeInputHandlerChanged(QAbstract3DInputHandler *inputHandler)
void activeThemeChanged(Q3DTheme *theme)
void aspectRatioChanged(qreal ratio)
void currentFpsChanged(qreal fps)
void horizontalAspectRatioChanged(qreal ratio)
void localeChanged(const QLocale &locale)
void marginChanged(qreal margin)
void measureFpsChanged(bool enabled)
void optimizationHintsChanged(QAbstract3DGraph::OptimizationHints hints)
void orthoProjectionChanged(bool enabled)
void polarChanged(bool enabled)
void queriedGraphPositionChanged(const QVector3D &data)
void radialLabelOffsetChanged(float offset)
void reflectionChanged(bool enabled)
void reflectivityChanged(qreal reflectivity)
void selectedElementChanged(QAbstract3DGraph::ElementType type)
void selectionModeChanged(QAbstract3DGraph::SelectionFlags mode)
void shadowQualityChanged(QAbstract3DGraph::ShadowQuality quality)
QSurfaceFormat qDefaultSurfaceFormat(bool antialias)

Additional Inherited Members

  • 22 public slots inherited from QWindow
  • 1 public slot inherited from QObject
  • 1 static public member inherited from QWindow
  • 11 static public members inherited from QObject
  • 18 protected functions inherited from QWindow
  • 9 protected functions inherited from QObject

Detailed Description

The QAbstract3DGraph class provides a window and render loop for graphs.

This class subclasses a QWindow and provides render loop for graphs inheriting it.

You should not need to use this class directly, but one of its subclasses instead.

Anti-aliasing is turned on by default on C++, except in OpenGL ES2 environments, where anti-aliasing is not supported by Qt Data Visualization. To specify non-default anti-aliasing for a graph, give a custom surface format as a constructor parameter. You can use the convenience function QtDataVisualization::qDefaultSurfaceFormat() to create the surface format object.

Note: QAbstract3DGraph sets window flag Qt::FramelessWindowHint on by default. If you want to display graph windows as standalone windows with regular window frame, clear this flag after constructing the graph. For example:

Q3DBars *graphWindow = new Q3DBars;
graphWindow->setFlags(graphWindow->flags() ^ Qt::FramelessWindowHint);

See also Q3DBars, Q3DScatter, Q3DSurface, and Qt Data Visualization C++ Classes.

Member Type Documentation

enum QAbstract3DGraph::ElementType

Type of an element in the graph.

ConstantValueDescription
QAbstract3DGraph::ElementNone0No defined element.
QAbstract3DGraph::ElementSeries1A series (that is, an item in a series).
QAbstract3DGraph::ElementAxisXLabel2The x-axis label.
QAbstract3DGraph::ElementAxisYLabel3The y-axis label.
QAbstract3DGraph::ElementAxisZLabel4The z-axis label.
QAbstract3DGraph::ElementCustomItem5A custom item.

This enum was introduced or modified in QtDataVisualization 1.1.

enum QAbstract3DGraph::OptimizationHint
flags QAbstract3DGraph::OptimizationHints

The optimization hint for rendering.

ConstantValueDescription
QAbstract3DGraph::OptimizationDefault0Provides the full feature set at a reasonable performance.
QAbstract3DGraph::OptimizationStatic1Optimizes the rendering of static data sets at the expense of some features.

This enum was introduced or modified in Qt Data Visualization 1.1.

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

enum QAbstract3DGraph::SelectionFlag
flags QAbstract3DGraph::SelectionFlags

Item selection modes. Values of this enumeration can be combined with OR operator.

ConstantValueDescription
QAbstract3DGraph::SelectionNone0Selection mode disabled.
QAbstract3DGraph::SelectionItem1Selection highlights a single item.
QAbstract3DGraph::SelectionRow2Selection highlights a single row.
QAbstract3DGraph::SelectionItemAndRowSelectionItem | SelectionRowCombination flag for highlighting both item and row with different colors.
QAbstract3DGraph::SelectionColumn4Selection highlights a single column.
QAbstract3DGraph::SelectionItemAndColumnSelectionItem | SelectionColumnCombination flag for highlighting both item and column with different colors.
QAbstract3DGraph::SelectionRowAndColumnSelectionRow | SelectionColumnCombination flag for highlighting both row and column.
QAbstract3DGraph::SelectionItemRowAndColumnSelectionItem | SelectionRow | SelectionColumnCombination flag for highlighting item, row, and column.
QAbstract3DGraph::SelectionSlice8Setting this mode flag indicates that the graph should take care of the slice view handling automatically. If you wish to control the slice view yourself via Q3DScene, do not set this flag. When setting this mode flag, either SelectionRow or SelectionColumn must also be set, but not both. Slicing is supported by Q3DBars and Q3DSurface only. When this flag is set, slice mode is entered in the following situations:
  • When selection is changed explicitly via series API to a visible item
  • When selection is changed by clicking on the graph
  • When the selection mode changes and the selected item is visible
QAbstract3DGraph::SelectionMultiSeries16Setting this mode means that items for all series at same position are highlighted, instead of just the selected item. The actual selection in the other series doesn't change. Multi-series selection is not supported for Q3DScatter.

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

enum QAbstract3DGraph::ShadowQuality

Quality of shadows.

ConstantValueDescription
QAbstract3DGraph::ShadowQualityNone0Shadows are disabled.
QAbstract3DGraph::ShadowQualityLow1Shadows are rendered in low quality.
QAbstract3DGraph::ShadowQualityMedium2Shadows are rendered in medium quality.
QAbstract3DGraph::ShadowQualityHigh3Shadows are rendered in high quality.
QAbstract3DGraph::ShadowQualitySoftLow4Shadows are rendered in low quality with softened edges.
QAbstract3DGraph::ShadowQualitySoftMedium5Shadows are rendered in medium quality with softened edges.
QAbstract3DGraph::ShadowQualitySoftHigh6Shadows are rendered in high quality with softened edges.

Property Documentation

activeInputHandler : QAbstract3DInputHandler *

This property holds the active input handler used in the graph.

Access functions:

QAbstract3DInputHandler *activeInputHandler() const
void setActiveInputHandler(QAbstract3DInputHandler *inputHandler)

Notifier signal:

void activeInputHandlerChanged(QAbstract3DInputHandler *inputHandler)

activeTheme : Q3DTheme *

This property holds the active theme of the graph.

Access functions:

Q3DTheme *activeTheme() const
void setActiveTheme(Q3DTheme *theme)

Notifier signal:

void activeThemeChanged(Q3DTheme *theme)

aspectRatio : qreal

This property holds the ratio of the graph scaling between the longest axis on the horizontal plane and the y-axis.

Defaults to 2.0.

Note: Has no effect on Q3DBars.

This property was introduced in QtDataVisualization 1.1.

Access functions:

qreal aspectRatio() const
void setAspectRatio(qreal ratio)

Notifier signal:

void aspectRatioChanged(qreal ratio)

See also horizontalAspectRatio.

currentFps : const qreal

This property holds the rendering results for the last second.

The results are stored in this read-only property when FPS measuring is enabled. It takes at least a second before this value is updated after measuring is activated.

This property was introduced in QtDataVisualization 1.1.

Access functions:

qreal currentFps() const

Notifier signal:

void currentFpsChanged(qreal fps)

See also measureFps.

horizontalAspectRatio : qreal

This property holds the ratio of the graph scaling between the x-axis and z-axis.

The value of 0.0 indicates automatic scaling according to axis ranges. Defaults to 0.0.

Has no effect on Q3DBars, which handles scaling on the horizontal plane via the barThickness and barSpacing properties. Polar graphs also ignore this property.

This property was introduced in QtDataVisualization 1.2.

Access functions:

qreal horizontalAspectRatio() const
void setHorizontalAspectRatio(qreal ratio)

Notifier signal:

void horizontalAspectRatioChanged(qreal ratio)

See also aspectRatio, polar, Q3DBars::barThickness, and Q3DBars::barSpacing.

locale : QLocale

This property holds the locale used for formatting various numeric labels.

Defaults to the "C" locale.

This property was introduced in QtDataVisualization 1.2.

Access functions:

QLocale locale() const
void setLocale(const QLocale &locale)

Notifier signal:

void localeChanged(const QLocale &locale)

See also QValue3DAxis::labelFormat.

margin : qreal

This property holds the absolute value used for the space left between the edge of the plottable graph area and the edge of the graph background.

If the margin value is negative, the margins are determined automatically and can vary according to the size of the items in the series and the type of the graph. The value is interpreted as a fraction of the y-axis range if the graph aspect ratios have not beed changed from the default values. Defaults to -1.0.

Note: Setting a smaller margin for a scatter graph than the automatically determined margin can cause the scatter items at the edges of the graph to overlap with the graph background.

Note: On scatter and surface graphs, if the margin is small in comparison to the axis label size, the positions of the edge labels of the axes are adjusted to avoid overlap with the edge labels of the neighboring axes.

This property was introduced in QtDataVisualization 1.2.

Access functions:

qreal margin() const
void setMargin(qreal margin)

Notifier signal:

void marginChanged(qreal margin)

measureFps : bool

This property holds whether rendering is done continuously instead of on demand.

If true, rendering is continuous and the value of the currentFps property is updated. Defaults to false.

This property was introduced in QtDataVisualization 1.1.

Access functions:

bool measureFps() const
void setMeasureFps(bool enable)

Notifier signal:

void measureFpsChanged(bool enabled)

See also currentFps.

optimizationHints : OptimizationHints

This property holds whether the default or static mode is used for rendering optimization.

The default mode provides the full feature set at a reasonable level of performance. The static mode optimizes graph rendering and is ideal for large non-changing data sets. It is slower with dynamic data changes and item rotations. Selection is not optimized, so using the static mode with massive data sets is not advisable. Static optimization works only on scatter graphs. Defaults to OptimizationDefault.

Note: On some environments, large graphs using static optimization may not render, because all of the items are rendered using a single draw call, and different graphics drivers support different maximum vertice counts per call. This is mostly an issue on 32bit and OpenGL ES2 platforms. To work around this issue, choose an item mesh with a low vertex count or use the point mesh.

Access functions:

OptimizationHints optimizationHints() const
void setOptimizationHints(OptimizationHints hints)

Notifier signal:

void optimizationHintsChanged(QAbstract3DGraph::OptimizationHints hints)

See also QAbstract3DSeries::mesh.

orthoProjection : bool

This property holds whether orthographic projection is used for displaying the graph.

If true, ortographic projection is used to create 2D graphs by replacing the default input handler with one that does not allow rotating the graph and by setting the camera to view the graph directly from the side or from the top. Also, axis labels typically need to be rotated when viewing the graph from the sides. Defaults to false.

Note: Shadows will be disabled when set to true.

This property was introduced in QtDataVisualization 1.1.

Access functions:

bool isOrthoProjection() const
void setOrthoProjection(bool enable)

Notifier signal:

void orthoProjectionChanged(bool enabled)

See also QAbstract3DAxis::labelAutoRotation and Q3DCamera::cameraPreset.

polar : bool

This property holds whether horizontal axes are changed into polar axes.

If true, the x-axis becomes the angular axis and the z-axis becomes the radial axis. Polar mode is not available for bar graphs.

Defaults to false.

This property was introduced in QtDataVisualization 1.2.

Access functions:

bool isPolar() const
void setPolar(bool enable)

Notifier signal:

void polarChanged(bool enabled)

See also orthoProjection and radialLabelOffset.

queriedGraphPosition : const QVector3D

This property holds the latest queried graph position values along each axis.

This read-only property contains the results from Q3DScene::graphPositionQuery. The values are normalized to the range [-1, 1]. If the queried position was outside the graph bounds, the values will not reflect the real position, but will instead indicate an undefined position outside the range [-1, 1]. The value will be undefined until a query is made.

There is no single correct 3D coordinate to match a particular screen position, so to be consistent, the queries are always done against the inner sides of an invisible box surrounding the graph.

Note: Bar graphs only allow querying graph position at the graph floor level, so the y-value is always zero for bar graphs and the valid queries can be only made at screen positions that contain the floor of the graph.

This property was introduced in QtDataVisualization 1.2.

Access functions:

QVector3D queriedGraphPosition() const

Notifier signal:

void queriedGraphPositionChanged(const QVector3D &data)

See also Q3DScene::graphPositionQuery.

radialLabelOffset : float

This property holds the normalized horizontal offset for the axis labels of the radial polar axis.

The value 0.0 indicates that the labels should be drawn next to the 0-angle angular axis grid line. The value 1.0 indicates that the labels are drawn in their usual place at the edge of the graph background. Defaults to 1.0.

This property is ignored if the polar property value is false.

This property was introduced in QtDataVisualization 1.2.

Access functions:

float radialLabelOffset() const
void setRadialLabelOffset(float offset)

Notifier signal:

void radialLabelOffsetChanged(float offset)

See also polar.

reflection : bool

This property holds whether floor reflections are on or off.

Defaults to false.

Affects only Q3DBars. However, in Q3DBars graphs holding both positive and negative values, reflections are not supported for custom items that intersect the floor plane. In that case, reflections should be turned off to avoid incorrect rendering.

If using a custom surface format, the stencil buffer needs to be defined (QSurfaceFormat::setStencilBufferSize()) for reflections to work.

This property was introduced in QtDataVisualization 1.2.

Access functions:

bool isReflection() const
void setReflection(bool enable)

Notifier signal:

void reflectionChanged(bool enabled)

See also reflectivity.

reflectivity : qreal

Floor reflectivity.

Larger numbers make the floor more reflective. The valid range is [0...1]. Defaults to 0.5.

Note: Affects only Q3DBars.

This property was introduced in QtDataVisualization 1.2.

Access functions:

qreal reflectivity() const
void setReflectivity(qreal reflectivity)

Notifier signal:

void reflectivityChanged(qreal reflectivity)

See also reflection.

scene : Q3DScene * const

This property holds the Q3DScene pointer that can be used to manipulate the scene and access the scene elements, such as the active camera.

This property is read-only.

Access functions:

Q3DScene *scene() const

selectedElement : const ElementType

This property holds the element selected in the graph.

This property can be used to query the selected element type. The type is valid until a new selection is made in the graph and the selectedElementChanged signal is emitted.

The signal can be used for example for implementing custom input handlers, as demonstrated by the Axis Range Dragging With Labels Example.

This property was introduced in QtDataVisualization 1.1.

Access functions:

ElementType selectedElement() const

Notifier signal:

void selectedElementChanged(QAbstract3DGraph::ElementType type)

See also selectedLabelIndex(), selectedAxis(), selectedCustomItemIndex(), selectedCustomItem(), Q3DBars::selectedSeries(), Q3DScatter::selectedSeries(), Q3DSurface::selectedSeries(), and Q3DScene::setSelectionQueryPosition().

selectionMode : SelectionFlags

Item selection mode.

A combination of SelectionFlags. By default, SelectionItem. Different graph types support different selection modes.

Access functions:

SelectionFlags selectionMode() const
void setSelectionMode(SelectionFlags mode)

Notifier signal:

void selectionModeChanged(QAbstract3DGraph::SelectionFlags mode)

See also SelectionFlags.

shadowQuality : ShadowQuality

This property holds the quality of the shadow.

One of the ShadowQuality enum values. By default, ShadowQualityMedium.

Note: If setting the shadow quality to a certain level fails, the level is lowered until it is successfully set. The shadowQualityChanged signal is emitted each time a change is made.

Access functions:

ShadowQuality shadowQuality() const
void setShadowQuality(ShadowQuality quality)

Notifier signal:

void shadowQualityChanged(QAbstract3DGraph::ShadowQuality quality)

See also ShadowQuality.

Member Function Documentation

[virtual] QAbstract3DGraph::~QAbstract3DGraph()

Destroys QAbstract3DGraph.

int QAbstract3DGraph::addCustomItem(QCustom3DItem *item)

Adds a QCustom3DItem item to the graph. Graph takes ownership of the added item.

Returns the index to the added item if the add operation was successful, -1 if trying to add a null item, and the index of the item if trying to add an already added item.

This function was introduced in QtDataVisualization 1.1.

See also removeCustomItems(), removeCustomItem(), removeCustomItemAt(), and customItems().

void QAbstract3DGraph::addInputHandler(QAbstract3DInputHandler *inputHandler)

Adds the given inputHandler to the graph. The input handlers added via addInputHandler are not taken in to use directly. Only the ownership of the inputHandler is given to the graph. The inputHandler must not be null or already added to another graph.

See also releaseInputHandler() and setActiveInputHandler().

void QAbstract3DGraph::addTheme(Q3DTheme *theme)

Adds the given theme to the graph. The themes added via addTheme are not taken in to use directly. Only the ownership of the theme is given to the graph. The theme must not be null or already added to another graph.

See also releaseTheme() and setActiveTheme().

void QAbstract3DGraph::clearSelection()

Clears selection from all attached series.

QList<QCustom3DItem *> QAbstract3DGraph::customItems() const

Returns the list of all added custom items.

This function was introduced in QtDataVisualization 1.2.

See also addCustomItem().

bool QAbstract3DGraph::hasContext() const

Returns true if the OpenGL context of the graph has been successfully initialized. Trying to use a graph when the context initialization has failed typically results in a crash. A common reason for a context initialization failure is lack of sufficient platform support for OpenGL.

QList<QAbstract3DInputHandler *> QAbstract3DGraph::inputHandlers() const

Returns the list of all added input handlers.

See also addInputHandler().

void QAbstract3DGraph::releaseCustomItem(QCustom3DItem *item)

Gets ownership of given item back and removes the item from the graph.

Note: If the same item is added back to the graph, the texture or the texture file needs to be re-set.

This function was introduced in QtDataVisualization 1.1.

See also QCustom3DItem::setTextureImage() and QCustom3DItem::setTextureFile().

void QAbstract3DGraph::releaseInputHandler(QAbstract3DInputHandler *inputHandler)

Releases the ownership of the inputHandler back to the caller, if it was added to this graph. If the released inputHandler is in use there will be no input handler active after this call.

If the default input handler is released and added back later, it behaves as any other input handler would.

See also addInputHandler() and setActiveInputHandler().

void QAbstract3DGraph::releaseTheme(Q3DTheme *theme)

Releases the ownership of the theme back to the caller, if it was added to this graph. If the released theme is in use, a new default theme will be created and set active.

If the default theme is released and added back later, it behaves as any other theme would.

See also addTheme() and setActiveTheme().

void QAbstract3DGraph::removeCustomItem(QCustom3DItem *item)

Removes the custom item. Deletes the resources allocated to it.

This function was introduced in QtDataVisualization 1.1.

void QAbstract3DGraph::removeCustomItemAt(const QVector3D &position)

Removes all custom items at position. Deletes the resources allocated to them.

This function was introduced in QtDataVisualization 1.1.

void QAbstract3DGraph::removeCustomItems()

Removes all custom items. Deletes the resources allocated to them.

This function was introduced in QtDataVisualization 1.1.

QImage QAbstract3DGraph::renderToImage(int msaaSamples = 0, const QSize &imageSize = QSize())

Renders current frame to an image of imageSize. Default size is the window size. Image is rendered with antialiasing level given in msaaSamples. Default level is 0.

Returns the rendered image.

Note: OpenGL ES2 does not support anitialiasing, so msaaSamples is always forced to 0.

This function was introduced in QtDataVisualization 1.1.

QAbstract3DAxis *QAbstract3DGraph::selectedAxis() const

Can be used to get the selected axis after receiving selectedElementChanged signal with any label type. Selection is valid until the next selectedElementChanged signal.

Returns the pointer to the selected axis, or null.

This function was introduced in QtDataVisualization 1.1.

See also selectedElement.

QCustom3DItem *QAbstract3DGraph::selectedCustomItem() const

Can be used to get the selected custom item after receiving selectedElementChanged signal with QAbstract3DGraph::ElementCustomItem type. Ownership of the item remains with the graph. Selection is valid until the next selectedElementChanged signal.

Returns the pointer to the selected custom item, or null.

This function was introduced in QtDataVisualization 1.1.

See also selectedElement.

int QAbstract3DGraph::selectedCustomItemIndex() const

Can be used to query the index of the selected custom item after receiving selectedElementChanged signal with QAbstract3DGraph::ElementCustomItem type. Selection is valid until the next selectedElementChanged signal.

Returns the index of the selected custom item, or -1.

This function was introduced in QtDataVisualization 1.1.

See also selectedElement.

int QAbstract3DGraph::selectedLabelIndex() const

Can be used to query the index of the selected label after receiving selectedElementChanged signal with any label type. Selection is valid until the next selectedElementChanged signal.

Returns the index of the selected label, or -1.

This function was introduced in QtDataVisualization 1.1.

See also selectedElement.

void QAbstract3DGraph::setActiveInputHandler(QAbstract3DInputHandler *inputHandler)

Sets inputHandler as the active input handler used in the graph. Implicitly calls addInputHandler() to transfer ownership of inputHandler to this graph.

If inputHandler is null, no input handler will be active after this call.

Note: Setter function for property activeInputHandler.

See also activeInputHandler(), addInputHandler(), and releaseInputHandler().

void QAbstract3DGraph::setActiveTheme(Q3DTheme *theme)

Sets theme as the active theme to be used for the graph. Implicitly calls addTheme() to transfer the ownership of the theme to this graph.

If theme is null, a temporary default theme is created. This temporary theme is destroyed if any theme is explicitly set later. Properties of the theme can be modified even after setting it, and the modifications take effect immediately.

Note: Setter function for property activeTheme.

See also activeTheme().

[virtual] bool QAbstract3DGraph::shadowsSupported() const

Returns true if shadows are supported with the current configuration. OpenGL ES2 configurations do not support shadows.

QList<Q3DTheme *> QAbstract3DGraph::themes() const

Returns the list of all added themes.

See also addTheme().

Related Non-Members

[static] QSurfaceFormat QtDataVisualization::qDefaultSurfaceFormat(bool antialias)

This convenience function can be used to create a custom surface format suitable for use by Qt Data Visualization graphs.

The antialias parameter specifies whether or not antialiasing is activated.

Give the surface format returned by this function to the graph constructor (C++) or set it as the window format for QQuickView (QML) before calling show() on it.

For example, disable antialiasing on C++ application:

#include <QtDataVisualization/qutils.h>

// ...

Q3DBars *graph = new Q3DBars(QtDataVisualization::qDefaultSurfaceFormat(false));

For example, enable antialiasing for direct rendering modes on QML application:

#include <QtDataVisualization/qutils.h>

// ...

QQuickView viewer;
viewer.setFormat(QtDataVisualization::qDefaultSurfaceFormat());

Note: Antialiasing is not supported in OpenGL ES2 environments.

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