The bounding box for geo-coordinates (only applies for UrlPatternMode.Contiguous).
Getting a pyramid tilea that is fully outside of the bounding box will return TileDataResult.Void.
Defaults to the bounds of the whole pixel pyramid.
Returns the number of tile matrices.
If the zero-th tile matrix has a size of
1x1, the tile matrix level count is equal to the pyramid level count (see IPyramidBase.Levels).