mapbox / mapbox/mapbox-navigation-ios
Inconsistency in simulated currentSpeed value calculation leads to course view jerkiness.
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@ShanMa1991 is already working on this.
Since Oct 15, 2020.
bug
UI
- Dominant language
- Swift
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Description
Mapbox Navigation SDK version: v1.0.0-rc.5
During navigation simulation currentSpeed in some cases (e.g. after arriving to intermediate waypoint) might be inconsistently increased. This in turn leads to jerky course view updates. Here's example currentSpeed log inside SimulatedLocationManager:
- Start of navigation
17.94770163534446
2.776737654923229
...
2.777378838420406
4.716399047755162
4.716399047755162
...
4.716399047755162
4.716399047755162
- Arrival to intermediate waypoint
18.150889963319944
39.25711711189784
39.25711711189784
39.25711711189784
39.25711711189784
17.969133355688626
17.954382893051346
17.978881007944462
- Arrival to final destination
30.0
30.0
As you can see right after arrival to intermediate waypoint speed is a lot higher than it was prior to arrival. This leads to jerky course view updates shown on screencast:
/cc @mapbox/navigation-ios
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