Momentum/Inertial panning and zooming?

[femski]

It seems when you pan and zoom Map - there is no inertial panning/zoom.
This affects mobile platforms like ios safari.
Original Mapbox-gl-gs does have it. so it must be that react-map-gl is suppressing it.
Is it possible to restore it ? Will you support inertial/momemum panning and zooming on mobile?

[pr1ntr]

I think this would be a really great touch

[mayteio]

+1

[derwaldgeist]

Just stumbled upon this when I compared the features of this library to the alternative react-mapbox-gl library. It really feels weird that react-map-gl does not support inertia panning. It's 2020 :-)

[Pessimistress]

@derwaldgeist Sorry to disappoint you, but I'm maintaining this library on my own time and I do not have the devices needed to sufficiently test mobile support.

What needs to happen is in https://github.com/uber/react-map-gl/blob/a71cdf9ba27fcbec638b5326733cec1b1d5420aa/src/utils/map-controller.js#L252-L257 instead of stopping immediately we need to figure out a new end position with inertia taken into consideration, along with use a reasonable transition duration/easing function. I am happy to assist whoever wants to give this a shot.

[mayteio]

@Pessimistress you are a legend for maintaining this - I thought it was under the uber umbrella! Seems like the original code for mapbox-gl-js is here: https://github.com/mapbox/mapbox-gl-js/blob/master/src/ui/handler/drag_pan.js#L171 which includes touch events. I can give it a crack this week (and encourage anyone else to as well!)

[derwaldgeist]

@Pessimistress @mayteio Thanks for answering that fast, highly appreciated!

[RobJacobson]

Ditto! I've also missed inertial panning. That's the default in both Google Maps and Mapbox GL JS, so it feels "weird" to me when panning stops abruptly when using a react-map-gl map.

I noticed that version 1.6.0 of the Mapbox library added support for "configurable inertia panning." Would this be useful for @mayteio?

[Pessimistress]

This will be addressed in v5.3/v6.1. Currently available in 6.1.0-beta.1.