maps

• [✔️] I've looked at the documentation to make sure the behavior is documented and expected
• [✔️] I'm sure this is a Leaflet code issue, not an issue with my own code nor with the framework I'm using (Cordova, Ionic, Angular, React…)
• [✔️] I've searched through the issues to make sure it's not yet reported

Steps to reproduce
Steps to reproduce

MGLTilePyramidOfflineRegion should have a countOfTiles method that returns the number of tiles included in the tile pyramid. The implementation would rely on the mbgl::util::tileCount() function added in #9906.

This is the iOS/macOS equivalent to #11108 for Android. It would serve as a built-in alternative to mapbox/turf-swift#47 for applications already using the map SDK, including applica

maptalks's version and what browser you use?
v0.43.0, chrome

Issue description
Layers do not share WebGL context, which creates glitches when a map has more than one 3d layer. For example a buildings layer with a 3D line will not hide the line behind the buildings.
In particular, I am implementing a 3D terrain layer but this layer will not hide (behind mountains) any other 3d element

The button should zoom in to the selected point on the map and show the editor's crosshair at exactly the same place which was selected by the user.

I think it'd be great to be able to move a Task between Projects, likely from the Task's Edit page.

This can help with keeping things organized, as you may not realize you'll need/want new Projects immediately, and it will save you having to either to export/import, or re-upload data (if you've not processed it).

For instance, I'd now like to move my Pix4D example datasets out from the Githu

'react-autocomplete' (https://github.com/reactjs/react-autocomplete) is no longer maintained and causing warnings

react-dom.development.js:12357 Warning: componentWillMount has been renamed, and is not recommended for use. See https://fb.me/react-unsafe-component-lifecycles for details.

• Move code with side effects to componentDidMount, and set initial state in the constructor.
• R