QCustom3DItem Class

Property Documentation

meshFile : QString

This property holds the item mesh file name.

The item in the file must be in Wavefront OBJ format and include vertices, normals, and UVs. It also needs to be in triangles.

Access functions:

QString	meshFile() const
void	setMeshFile(const QString &meshFile)

Notifier signal:

void	meshFileChanged(const QString &meshFile)

position : QVector3D

This property holds the item position as a QVector3D.

Defaults to QVector3D(0.0, 0.0, 0.0).

Item position is specified either in data coordinates or in absolute coordinates, depending on the positionAbsolute property. When using absolute coordinates, values between -1.0...1.0 are within axis ranges.

Note: Items positioned outside any axis range are not rendered if positionAbsolute is false, unless the item is a QCustom3DVolume that would be partially visible and scalingAbsolute is also false. In that case, the visible portion of the volume will be rendered.

Access functions:

QVector3D	position() const
void	setPosition(const QVector3D &position)

Notifier signal:

void	positionChanged(const QVector3D &position)

See also positionAbsolute.

positionAbsolute : bool

This property holds whether item position is to be handled in data coordinates or in absolute coordinates.

Defaults to false. Items with absolute coordinates will always be rendered, whereas items with data coordinates are only rendered if they are within axis ranges.

Access functions:

bool	isPositionAbsolute() const
void	setPositionAbsolute(bool positionAbsolute)

Notifier signal:

void	positionAbsoluteChanged(bool positionAbsolute)

See also position.

rotation : QQuaternion

This property holds the item rotation as a QQuaternion.

Defaults to QQuaternion(0.0, 0.0, 0.0, 0.0).

Access functions:

QQuaternion	rotation()
void	setRotation(const QQuaternion &rotation)

Notifier signal:

void	rotationChanged(const QQuaternion &rotation)

scaling : QVector3D

This property holds the item scaling as a QVector3D.

Defaults to QVector3D(0.1, 0.1, 0.1).

Item scaling is either in data values or in absolute values, depending on the scalingAbsolute property. The default vector interpreted as absolute values sets the item to 10% of the height of the graph, provided the item mesh is normalized and the graph aspect ratios have not been changed from the defaults.

Access functions:

QVector3D	scaling() const
void	setScaling(const QVector3D &scaling)

Notifier signal:

void	scalingChanged(const QVector3D &scaling)

See also scalingAbsolute.

scalingAbsolute : bool

This property holds whether item scaling is to be handled in data values or in absolute values.

Defaults to true.

Items with absolute scaling will be rendered at the same size, regardless of axis ranges. Items with data scaling will change their apparent size according to the axis ranges. If positionAbsolute is true, this property is ignored and scaling is interpreted as an absolute value. If the item has rotation, the data scaling is calculated on the unrotated item. Similarly, for QCustom3DVolume items, the range clipping is calculated on the unrotated item.

Note: Only absolute scaling is supported for QCustom3DLabel items or for custom items used in polar graphs.

Note: The custom item's mesh must be normalized to the range [-1 ,1], or the data scaling will not be accurate.

This property was introduced in QtDataVisualization 1.2.

Access functions:

bool	isScalingAbsolute() const
void	setScalingAbsolute(bool scalingAbsolute)

Notifier signal:

void	scalingAbsoluteChanged(bool scalingAbsolute)

See also scaling and positionAbsolute.

shadowCasting : bool

This property holds whether shadow casting for the item is enabled.

Defaults to true. If false, the item does not cast shadows regardless of QAbstract3DGraph::ShadowQuality.

Access functions:

bool	isShadowCasting() const
void	setShadowCasting(bool enabled)

Notifier signal:

void	shadowCastingChanged(bool shadowCasting)

textureFile : QString

This property holds the texture file name for the item.

If both this property and the texture image are unset, a solid gray texture will be used.

Note: To conserve memory, the QImage loaded from the file is cleared after a texture is created.

Access functions:

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

Notifier signal:

void	textureFileChanged(const QString &textureFile)

visible : bool

This property holds the visibility of the item.

Defaults to true.

Access functions:

bool	isVisible() const
void	setVisible(bool visible)

Notifier signal:

void	visibleChanged(bool visible)