Longitude Wrapping Revisted

I have a situation where I want to show the US and Australia, zoomed out. I have a marker in Australia using lat/lon: [-29.5, 143]. With the default view, the marker is not visible, because I assume leaflet thinks that the Australia in view has a longitude of -215 or so. Panning right brings it into view.

I’ve set worldCopyJump to true, and yes, if I pan left far enough from the initial view, the marker eventually shows. But then its confusing in that a small pan right/left shows/hides the marker, to the end user it seems confusing.

http://jsfiddle.net/dfaivre/JKFgD/

• The initial state of the fiddle should be an empty map, with the US and Australia in view.
• Pan the map west a few degrees. The map flashes, a marker appears
• Pan the map east a few degrees. The map flashes, the marker disappears.
• Change worldCopyJump to false, re-run the fiddle
• You should get an empty map.
• Pan east until you get to Australia again. The marker should now appear

It seems that the expected behavior would always show the marker.

[jpwhitaker]

This is pretty hacky but the only way I could solve the problem in @dfaivre’s second comment was by making 4 markers like this: http://jsfiddle.net/u90L0oLq/

var positiveLng = ((180+lng) + 180); var negativeLng = ((-180+lng) - 180);

Is there a better way to do this? My map has 188 markers, I don’t want to render 564 if I don’t have to.

[linuskamb]

I am having the same problem as porkloin (and many others.) I have features, both point and polygon, that are retrieved as geojson. These are all features around the Pacific. With the map centered at +!3, -165, I see all the features in the Eastern pacific. If I drag the map east a touch, then the eastern Pacific features disappear and the western Pacific features appear. I have worldCopyJump:true, and I’ve tried (to the limits of my control) to use the work-around of setting longitude values to be outside the +/-180 box, to no avail.

This is a serious flaw and, sadly, will likely prevent me from using leaflet, as I am developing software for the National and Pacific tsunami warning centers. The Pacific is the primary view.