Question

For some reason this seems much harder to find than I thought it would be. I am working with a map display and I have set the zoom level to 15:

mapController.setZoom(15);

What are the different zoom levels equal to in distance? I am assuming is some kind of log or exponential scale. If I choose 1 or 18 for the zoom levels, what is the approximate distance that will be displayed on the screen for each zoom level on a map?

Answer 1

According to MapController.setZoom:

Sets the zoomlevel of the map. The value will be clamped to be between
1 and 21 inclusive, though not all areas have tiles at higher zoom
levels. This just sets the level of the zoom directly; for a
step-by-step zoom with fancy interstitial animations, use zoomIn() or
zoomOut().

Parameters: zoomLevel – At zoomLevel 1, the equator of the earth is
256 pixels long. Each successive zoom level is magnified by a factor
of 2.

Returns: the new zoom level, between 1 and 21 inclusive.