QBar3DSeries Class

Base series class for Q3DBars. More...

Header: #include <QBar3DSeries>
Since: QtDataVisualization 1.0
Instantiated By: Bar3DSeries
Inherits: QAbstract3DSeries

Properties

Public Functions

QBar3DSeries(QObject *parent = Q_NULLPTR)
QBar3DSeries(QBarDataProxy *dataProxy, QObject *parent = Q_NULLPTR)
virtual ~QBar3DSeries()
QBarDataProxy *dataProxy() const
float meshAngle() const
QPoint selectedBar() const
void setDataProxy(QBarDataProxy *proxy)
void setMeshAngle(float angle)
void setSelectedBar(const QPoint &position)

Signals

void dataProxyChanged(QBarDataProxy *proxy)
void meshAngleChanged(float angle)
void selectedBarChanged(const QPoint &position)

Static Public Members

  • 11 static public members inherited from QObject

Additional Inherited Members

  • 1 public slot inherited from QObject
  • 9 protected functions inherited from QObject

Detailed Description

Base series class for Q3DBars.

QBar3DSeries manages the series specific visual elements, as well as series data (via 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.

QBar3DSeries supports the following format tags for QAbstract3DSeries::setItemLabelFormat():

@rowTitleTitle from row axis
@colTitleTitle from column axis
@valueTitleTitle from value axis
@rowIdxVisible row index. Localized using graph locale.
@colIdxVisible Column index. Localized using graph locale.
@rowLabelLabel from row axis
@colLabelLabel from column axis
@valueLabelItem value formatted using the same format the value axis attached to the graph uses. See QValue3DAxis::labelFormat for more information.
@seriesNameName of the series
%<format spec>Item value in specified format. Formatted using the same rules as QValue3DAxis::labelFormat.

For example:

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

See also Qt Data Visualization Data Handling and QAbstract3DGraph::locale.

Property Documentation

dataProxy : QBarDataProxy *

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.

Access functions:

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

Notifier signal:

void dataProxyChanged(QBarDataProxy *proxy)

meshAngle : float

A convenience property for defining the series rotation angle in degrees. Setting this property is equivalent to the following call:

setMeshRotation(QQuaternion::fromAxisAndAngle(0.0f, 1.0f, 0.0f, angle))

Note: When reading this property, it is calculated from QAbstract3DSeries::meshRotation value using floating point precision and always returns a value from zero to 360 degrees.

Access functions:

float meshAngle() const
void setMeshAngle(float angle)

Notifier signal:

void meshAngleChanged(float angle)

See also QAbstract3DSeries::meshRotation.

selectedBar : QPoint

Selects a bar at the position. The position is the (row, column) position in the data array of the series. Only one bar can be selected at a time. To clear selection from this series, set invalidSelectionPosition() as the position. If this series is added to a graph, the graph can adjust the selection according to user interaction or if it becomes invalid. Selecting a bar on another added series will also clear the selection. Removing rows from or inserting rows to the series before the row of the selected bar will adjust the selection so that the same bar will stay selected.

Access functions:

QPoint selectedBar() const
void setSelectedBar(const QPoint &position)

Notifier signal:

void selectedBarChanged(const QPoint &position)

See also QAbstract3DGraph::clearSelection().

Member Function Documentation

QBar3DSeries::QBar3DSeries(QObject *parent = Q_NULLPTR)

Constructs QBar3DSeries with the given parent.

QBar3DSeries::QBar3DSeries(QBarDataProxy *dataProxy, QObject *parent = Q_NULLPTR)

Constructs QBar3DSeries with the given dataProxy and the parent.

[virtual] QBar3DSeries::~QBar3DSeries()

Destroys QBar3DSeries.

[static] QPoint QBar3DSeries::invalidSelectionPosition()

Returns an invalid position for selection. Set this position to selectedBar property if you want to clear the selection from this series.

See also QAbstract3DGraph::clearSelection().

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