Add support for Spiderfying pins when they have the same coordinates in a view.

+1 same here.

+1 same here.

I've tested quickly a possible implementation.
I am of the opinion that it could be more difficult to add overlappingmarkerspiderfier without rewriting big parts in the code (in the javascript files). It can be that I'm simply on the wrong path.

A simpler solution could be that we:

1. check if has markers with identical position
2. move a little bit the markers (change the Latitude and Longitude

Maybe you have another idea?

Hello, DNicastro.
I like your another solution.
We can implement a similar to https://stackoverflow.com/questions/20490654/more-than-one-marker-on-sam....
What do you think about?

Just saying: there is already MarkerCluster support.

1+ same here

All I could so far is to solve the cluster vanish problem by adding a maxZoom property to

before:

new MarkerClusterer(
            geolocationMap.googleMap,
            geolocationMap.mapMarkers,
            {
              imagePath: imagePath,
              styles: markerClustererStyles
            }
          );

after:

new MarkerClusterer(
            geolocationMap.googleMap,
            geolocationMap.mapMarkers,
            {
              imagePath: imagePath,
              styles: markerClustererStyles,
              maxZoom: 15,
            }
          );

While this doesn't fix the issue, #2906266: Allow for any MarkerClusterer options, not just styles allows for setting up maxZoom properly along other options.

I might work on a possible solution for this as I think I'll need it. I think a solution could be done by grouping data, assuming the lat/long is exactly the same.

Actually, I got to work on this and kind of added OverlappingMarkerSpiderfier to google maps.

The patch also adds a Max Zoom setting to marker clusterer.

Please review.

Does not work for me, I just see 1 marker on a 14 marker cluster.

@Insasse I assume you enabled it on the views display settings, right? The patch brings in the option to enable it the same as with marker clusterer.

And in case you did.. can you dig a bit deeper into it. Is there a JS error. Can you confirm the OSM library is being loaded, etc.

Ah, and one more thing, you need to clear cache, so that the new library is picked up. That could have been.

Missed to enabled it in the view :) thanks now it works but it looks a bit uncommon now. When there are multiple markers for same location a single marker is shown and you have to click on it to spiderfie it but as a normal user I would not know there are multiple markers.

Maybe we should use the markerclusterer image there, too?

Hmm. We are gonna face tons of custom cases where one will want something else. OMS supports certain customizations through js events so as long as things can be done outside of the module, I don't think we should be adding extra logic to this patch. I might, though, come up with a simple + sign or something if its easy, but then again, I still think the logic should be kept as simple as possible and left customizations for the theme/site side of things.

re roll

Just FYI: This is included in the not-yet-public 8.x-2.x branch. I modified this to 1.) respect existing Marker icons and 2.) use a designated MarkerIcon with a "+" in it, to signify markers that will split up if clicked.

@Insasse, I'm also at Vienna and will do a BoF tomorrow from 12-13 :)

This is done in 8.x-2.x.

@hanoii - I kind of used your patch, but completely split it up, altered and extended it. I still will add you as a comitter, I simply technically don't know how yet.

Ah, that was easier than expected. It's technically an empty commit, but it should still count.