Method zoomOut

src/Geoscape/Globe.cpp:703–709

* Decreases the zoom level on the globe. */

 * Decreases the zoom level on the globe.
 */
void Globe::zoomOut()
{
	if (_zoom > 0)
	{
		setZoom(_zoom - 1);
	}
}

/**
 * Zooms the globe out as far as possible.