Byte position where this block starts in the file container.
Maximum column index for tiles stored in this block (range: 0-255).
Minimum column index for tiles stored in this block (range: 0-255).
The column position of this block at the current zoom level.
The zoom level for this block.
The row position of this block at the current zoom level.
Maximum row index for tiles stored in this block (range: 0-255).
Minimum row index for tiles stored in this block (range: 0-255).
The number of tiles contained in this block.
Optional
tileOptional tile index if it has been fetched.
Length of the tile index in bytes.
Byte position where the tile index starts within the container.
Interface for a block of tiles including necessary metadata. For more details, refer to spec v02.