TimeSliderController Class

Member Function Documentation

TimeSliderController::TimeSliderController(QObject *parent = nullptr)

Constructor

• parent Parent owning QObject.

Note: This function can be invoked via the meta-object system and from QML. See Q_INVOKABLE.

[signal] void TimeSliderController::extentsChanged()

Emitted when the extents of any TimeAware layer changes.

Note: Notifier signal for property numberOfSteps.

[signal] void TimeSliderController::geoViewChanged()

Emitted when the geoView changes.

Note: Notifier signal for property geoView.

[signal] void TimeSliderController::stepsChanged()

Emitted when either the start or end step changes.

Note: Notifier signal for property endStep. Notifier signal for property startStep.

[override virtual] TimeSliderController::~TimeSliderController()

Destructor.

int TimeSliderController::endStep() const

Returns the current end step.

Note: Getter function for property endStep.

Esri::ArcGISRuntime::TimeExtent TimeSliderController::fullTimeExtent() const

Calculates the union of all extents of all TimeAware layers in the current GeoView. Returns a TimeExtent covering the combined range of all extents.

QObject *TimeSliderController::geoView() const

Returns the GeoView as a QObject.

Note: Getter function for property geoView.

See also setGeoView().

int TimeSliderController::numberOfSteps() const

Calculates the number of steps the TimeSlider should display based on fullTimeExtent dividied by timeInterval. Returns number of steps for TimeSlider.

Note: Getter function for property numberOfSteps.

void TimeSliderController::setGeoView(QObject *geoView)

Set the GeoView object this Controller uses.

Internally this is cast to a MapView or SceneView using qobject_cast, which is why the paremeter is of form QObject and not GeoView.

• geoView Object which must inherit from GeoView* and QObject*.

Note: Setter function for property geoView.

See also geoView().

void TimeSliderController::setSteps(std::pair<int, int> steps)

Sets the current steps.

Setting steps changes the current time-extent of the GeoView to a TimeExtent range calculated by the current steps using timeForStep.

• steps Pair of start end steps.

void TimeSliderController::setSteps(int s, int e)

Sets the current steps.

Setting steps changes the current time-extent of the GeoView to a TimeExtent range calculated by the current steps using timeForStep.

• s start-step to set.
• e end-step to set.

Note: This function can be invoked via the meta-object system and from QML. See Q_INVOKABLE.

int TimeSliderController::startStep() const

Returns the current start step.

Note: Getter function for property startStep.

QDateTime TimeSliderController::timeForStep(int step) const

Calculates a QDateTIme from a step.

Given step and numberOfSteps we can calculate the date-time for an arbitrary step step interpolated between the start and end times of fullTimeExtent.

• step Step to calculate a time for.

Returns a QDateTime that is the time calculated for step.

Note: This function can be invoked via the meta-object system and from QML. See Q_INVOKABLE.

Esri::ArcGISRuntime::TimeValue TimeSliderController::timeInterval() const

Calculates the time-interval as a TimeValue, which is the smallest possible interval of all TimeAware layers in the current GeoView.

Returns a TimeValue which is the minimum time-interval of all intervals.