Can I get the original position of a marker?

[t2oh4e]

I implemented the plugin in a project and it works really fine.
But there is one thing I really miss: I use the markers position to calculate the distance between my location and the marker. When a marker is spiderfied it changes its position. Due to this my calculations are not correct. In most cases it's just a few meters, but sometimes several hundred meter if I have a large amount of markers and therefor a big spiral.

Long story short: Is there any way to get the markers original position without unspiderfying them?

[jawj]

Yes, it's undocumented (and theoretically subject to change), but you can see an example of this in the markersNearMarker method, on line 170 of the CoffeeScript source.

A spiderfied marker has an _omsData property, and this has a usualPosition property.

So in CoffeeScript, you can get the original position as follows:

position = marker._omsData?.usualPosition ? marker.position

And in plain JS it's:

position = marker._omsData ? marker._omsData.usualPosition : marker.position;

[t2oh4e]

Well, that was fast. Thanks a lot!

[phtrivier]

Sorry to reopen, but the "usualPosition" does not seem to be available when using the javascript, compiled version of the script. The property is called mkr._omsData.l - I supposed it's the compiler that rename it since it is not exposed... would probably be a good idea to expose it (and document it ;) )

[jawj]

Yes, I guess you're right on both counts. I'll reopen this as an enhancement, but it may be a little while before I get round to it.

[tverilytt]

First of all - thanks a bunch for a great utility :-)
It really is most helpful in a Google Maps mashup application I made, where potentially a lot or markers migt be on the same / near position. E.g. markers for Instagrams, Eventfuls etc. (one can check it out here: http://jo2maps.mybluemix.net/map).

I also stumbled upon this theme on markers original position vs. spiderfied position.
I realised in in connection with using Google maps direction service to get walking directions between two markers.
For now I will use the undocumented _omsData.l property instead of adding my own property.