Callback function ?

[nhinze]

Hi,

great little plugin. It would be nice to be able to define a callback function that would receive the current status of the animation (current distance travelled, lat/long, time?) so that events can be triggered along the path when the marker reaches a certain spot. I'm hacking it it right now, but it would be a nice feature.

Thanks,

Nick,

[atogle]

Thanks @nhinze. That's a really interesting idea. I'll try to carve out some time for it. I'm happy to help out with questions if you want to take a stab at it.

[nhinze]

I added a little pull request that shows how I edited your code to send the distance travelled to a custom function at each interval. However, something cleaner would be nice. I'm not very familiar with leaflet yet.

[atogle]

Thank @nhinze. I glanced at it and I think there's probably a better way to tackle it. Your solution calls the callback at each vertex which could end up being less an ideal if you have a line that's 100 miles long but only a start and end point, for example. You'd only get callbacks on start and finish.

@mourner recommended that I check out the new DomPosition util to implement the animation. There might be something in there to help.

Again, thanks for the idea and the code ideas. Much appreciated!

[nhinze]

Actually, the hack I did calls the function at minimum at each "interval". I have it set at 1000 ms, so I get a position/distance update at least every 1s. However, I do agree that my hack is a dirty solution and there is probably a better way.