Infinite map/Repeat map at the left and right bounds

[S-Man42]

It would be great if there were the possibility to scroll over 180°, repeating the world.

Additionally, having this, one could draw lines from lon == 179° to lon == -179° , for example.

[github-actions]

This issue is stale because it has been open 30 days with no activity. Remove stale label or comment or this will be closed in 5 days.

[github-actions]

This issue was closed because it has been stalled for 5 days with no activity.

[znromonk]

@S-Man42
I am trying to do the same and found a tentative workaround. It involves editing one of the files in the package, namely: lib/src/geo/crs/crs.dart

Replace

flutter_map/lib/src/geo/crs/crs.dart

Lines 354 to 355 in 95a8d26

	if (value.compareTo(start as num) < 0) return start as double;
	if (value.compareTo(end as num) > 0) return end as double;

with

    if (value.compareTo(start as num) < 0) return end as double;
    if (value.compareTo(end as num) > 0) return start as double;

What works:

• This forces the center of the map to slide over the+/-180 deg longitude wall when manually panned.

What doesn't work/ is buggy:

• If the map is slung into the boundary, it still does not flow through. It will hit that wall and will have to be manually panned over the boundary.
• If the map is centered in the negative longitude, any polylines/polygons on the positive side are not rendered. The same applies for the other way around.
• Polylines do not cross +/-180 boundary. It still takes the long way around.
• The map 'blinks' when you pass the +/-180 boundary.

Thoughts:

• This edit obviously doesn't allow the infinite panning to be optional.
• It might be better to write an _inclusive function specifically for +/-180 since latitude does not need to be infinite. Technically it is being called by inclusiveLat and inclusiveLng.