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nametext
TileRun A TileRun represents a single run of the tiling software. It is a logical unit of geometrical information that consists of a set of TilingBoundaries, TilingMasks, and Tiles that are associated with exactly one TileRun (ie each TilingBoundary, TilingMask, and Tile is associated with exactly one TileRun, with one exception that will be noted later). Sometimes this is also called a tiling chunk, although that is incorrect usage of the term and it should not be confused with an imaging chunk.