A location data source that provides simulated device locations for testing. More...
| Import Statement: | import Esri.ArcGISRuntime 100.15 |
| Since: | Esri.ArcGISRuntime 100.8 |
| Inherits: |
Properties
- currentLocationIndex : int
- iterationRate : double
- locations : list<Location>
Signals
Methods
- void setLocationsWithPolyline(Polyline polyline)
- void setLocationsWithPolylineAndParameters(Polyline polyline, SimulationParameters simulationParameters)
Detailed Description
Use this data source to simulate location updates for a device. It uses a collection of Location objects that are sequentially passed to AbstractLocationDataSource.updateLocation. The location collection can be derived from vertices in a provided polyline, generated evenly along a polyline based on a travel velocity, or assigned to the collection directly.
Property Documentation
The index of the item in the location collection that provides the current location.
You can get this value to find which item in the SimulatedLocationDataSource::locations collection represents the current location. You can also provide a new index to skip to a different location in the collection.
The rate over which the SimulatedLocationDataSource::locations collection is iterated.
This controls the frequency of location updates for the simulated location data source. The default value is 1.0, resulting in calls to AbstractLocationDataSource::updateLocation once per second. To increase the frequency, provide a higher value. A value of 2.0, for example, doubles the frequency of location updates. To slow down updates, provide a lower value. A value of 0.5, for example, decreases location updates by a factor of two. The iteration rate does not affect the Location::timestamp property of the items in the SimulatedLocationDataSource::locations (they are always 1 second apart).
locations : list<Location> |
A collection of locations that are iterated sequentially.
As the collection is iterated, the AbstractLocationDataSource::locationChanged signal is emitted for each location. The frequency at which AbstractLocationDataSource::updateLocation is called is determined by SimulatedLocationDataSource::iterationRate. Populate the collection by calling SimulatedLocationDataSource::setLocationsWithPolyline or by directly assigning a collection of Location to this property.
Signal Documentation
Emitted when the currentLocationIndex property changes.
Note: The corresponding handler is onCurrentLocationIndexChanged.
Emitted when the iterationRate property changes.
Note: The corresponding handler is onIterationRateChanged.
Emitted when the locations property changes.
Note: The corresponding handler is onLocationsChanged.
Method Documentation
void setLocationsWithPolyline(Polyline polyline) |
Creates a collection of locations using vertices from an input polyline.
The generated locations are available from the SimulatedLocationDataSource::locations property. The following location properties are populated based on the inputs:
The Location::course property is calculated based on the inputs.
These location properties are not set:
void setLocationsWithPolylineAndParameters(Polyline polyline, SimulationParameters simulationParameters) |
Creates a collection of locations along an input polyline based on simulationParameters.
The generated locations are available from the SimulatedLocationDataSource::locations property. Distance between each location on the polyline is determined by the value of SimulationParameters::velocity. If velocity is 10 meters per second, for example, the distance between locations will be 10 meters. The Location::timestamp values will always be 1 second apart.
The following properties will be set based on the inputs:
- Location::timestamp
- Location::position
- Location::velocity
- Location::horizontalAccuracy
- Location::verticalAccuracy
The Location::course property will be calculated based on the inputs. The Location::lastKnown property will not be set.