Amend the geocoder example to draw a marker at the result's location

[planemad]

The GL implementation of geolocate does not visually show a position marker after successful geolocation, this makes it hard to identify where the user is located.

This is very handy for tools that is based on user position. Here is an example map to try the existing Geolocate() behavior for which i'd like to add a position marker. This app is being used to map trees locations.

cc @bhousel

[bhousel]

We dispatch a geolocate event on success, so the listening code can display a marker if they want to. Is this ok? It gives developers a bit more flexibility rather than just forcing a marker on them.

[lucaswoj]

I agree with @bhousel. This behaviour isn't want an end user would want in all cases and should be implemented downstream. (This'll get a even easier when we land @mourner plugin for #656 soon!)

What we can do is amend the geocoder example to include a marker.

[danielduhh]

How can I listen for an event after geolocate is triggered
map.on('geolocate') ?

[lucaswoj]

@danielduhh map.on('geolocate') is the correct way to listen for events from the geolocator control. In the future, please direct all questions except bug reports and feature requests to StackOverflow.

[danielduhh]

#2824

[lucaswoj]

Oh! Hm. this already existed. http://127.0.0.1:4000/mapbox-gl-js/example/point-from-geocoder-result/

[mprove]

URL update for the example: https://www.mapbox.com/mapbox-gl-js/example/point-from-geocoder-result/