Calculating zoomToSpan() degrees based on min/max lat/lng to be in the mapView

Question

I have a cluster of items on an overlay in a mapView.
I know where the top/bottom/left/right most objects are.
I want to use the zoomToSpan() method to zoom onto that area.

What is the proper way to calculate the lat/lng degrees for this method ?

score 3 · Accepted Answer · answered May 15 '10 at 14:04

3

I found someone else posting a good solution to this problem here: http://www.anddev.org/zoom_and_span_on_a_cluster_of_points-t464.html

Good luck!

answered May 15 '10 at 14:04

Adam

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They were missing Math.abs on the calculations ... now it works – Itsik May 16 '10 at 15:44

score 2 · Answer 2 · edited May 23 '17 at 11:58

2

This question has been asked before, and there's an excellent answer, with code, here:

Android MapView -setting zoom automatically until all ItemizedOverlay's are visible

edited May 23 '17 at 11:58

Community

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answered Feb 21 '12 at 02:55

Mick Byrne

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score 0 · Answer 3 · answered Aug 22 '11 at 19:50

0

Wouldn't you want to just use something like this:

mapController.zoomToSpan(overlay.getLatSpanE6(), overlay.getLonSpanE6());

answered Aug 22 '11 at 19:50

Skone

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Those methods probably did not exist at the time of this question – Itsik Aug 22 '11 at 21:41

Calculating zoomToSpan() degrees based on min/max lat/lng to be in the mapView

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