get bounding box dimensions for a shape
get bounding box dimensions for a shape

crs4/ome_seadragon,lucalianas/ome_seadragon,lucalianas/ome_seadragon,lucalianas/ome_seadragon,lucalianas/ome_seadragon,crs4/ome_seadragon,crs4/ome_seadragon,crs4/ome_seadragon