ru.dgis.sdk.map.FollowController | Android SDK | Urbi Documentation
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FollowController

Class that allows you to manage the camera position and the geolocation marker. All of its methods' implementations must be thread-safe. Most methods have trivial default implementations available (thus the FollowController responsible for scaling is not required to override coordinates() and similar methods).

Extends: ru.dgis.sdk.NativeObject
Methods
fun requestValues(values: EnumSet<FollowValue>): Unit

Tells the FollowController which values it provides are in use. This frees up the resources associated with calculating unused values. The method can be called multiple times with different values, in which case the last one is consideref relevant.

Parameters
values
Returns
fun setClock(clock: FollowControllerClock?): Unit

Passes a time source to the FollowController. The timestamps that are returned from next_timestamp() must be computed relatively to the values obtained from the clock. Do not call this method repeatedly to replace a previous non-zero value with a different non-zero value.

Parameters
clock
Returns
fun setThresholds(shiftMeters: Double, rotation: Double): Unit

Threshold values for the position shift and rotation angle. Smaller shifts and smaller rotations are assumed to be visually indistinguishable.

Parameters
shiftMeters
rotation
Returns
fun updateValues(): Unit

Request to calculate all provided values. Immediately after calling this method, all values (coordinates(), satellite_bearing(), etc.) are considered up-to-date.

Returns
Properties
val availableValues

Set of value types that this FollowController can manage. For example, one FollowController can manage coordinates only, while another one can manage map tilt only.

val nextTimestampChannel

Channel that informs subscribers about the time of the next visible change of values. The change time of values that are not obtained via request_values() may not be reported. Time values are interpreted relatively to the source passed to set_clock().

val nextTimestamp

Channel that informs subscribers about the time of the next visible change of values. The change time of values that are not obtained via request_values() may not be reported. Time values are interpreted relatively to the source passed to set_clock().

val coordinates

Geographical coordinates.

val satelliteBearing

Direction of movement.

val magneticBearing

Direction to magnetic north.

val tilt

Map tilt.

val styleZoom

Style zoom level of the map.

val accuracy

Precision circle radius (meters).