All object types except for XYZ Tiles and QuadKeys can be stored in a collection. XYZ Tiles and QuadKeys are reserved for the SEARCH keyword only.
The most basic object type is a point that is composed of a latitude and a longitude. There is an optional
z member that may be used for auxiliary data such as elevation or a timestamp.
A bounding box consists of two points. The first being the southwestern most point and the second is the northeastern most point.
A geohash is a string respresentation of a point. With the length of the string indicating the precision of the point.
GeoJSON is an industry standard format for representing a variety of object types including a point, multipoint, linestring, multilinestring, polygon, multipolygon, geometrycollection, feature, and featurecollection. Tile38 supports all of the standards with these exceptions.
crsmember is not supported and will be ignored. The CRS84/WGS84 projection is assumed.
crs) will be ignored.
* All ignored members will not persist.
Important to note that all coordinates are in Longitude, Latitude order.
An XYZ tile is rectangle bounding area on earth that is represented by an X, Y coordinate and a Z (zoom) level. Check out maptiler.org for an interactive example.
A QuadKey used the same coordinate system as an XYZ tile except that the string representation is a string characters composed of 0, 1, 2, or 3. For a detailed explanation checkout The Bing Maps Tile System.