API SetMapZoom

__NOTOC__
Sets what is displayed by the current world map to a specific continent and zone.
 SetMapZoom(continentIndex [,zoneIndex])
==Parameters==
===Arguments===
:;continentIndex : Number - Specifies the continent corresponding to the numbers of GetMapContinents(), in addition to 0 for Azeroth and -1 for the Cosmic map.
:;zoneIndex : Number - Specifies the zone corresponding to the numbers of GetMapZones(continentIndex), omit for whole continent.
==Example==
 SetMapZoom(2, 10); -- Set the current map zoom of the world map to Elvynn Forrest.
 SetMapZoom(2); -- Shows the Eastern Kingdoms.
 SetMapZoom(0); -- Shows both continents.
 SetMapZoom(-1); -- Shows the cosmic map.
 WorldMapFrame:Show();
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