{"asset":{"generatetool":"mars3d@mars3d.cn/osgb2tiles3","gltfUpAxis":"Z","version":"1.0"},"root":{"boundingVolume":{"box":[0.202572822570801,197.376075744629,424.658798217773,30.4909791946411,0,0,0,27.6983413696289,0,0,0,3.45759582519531]},"content":{"uri":"Tile_+003_+008_L17_00.b3dm"},"geometricError":0,"pixel":82,"radius":41.3907623291016}}