{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950586,-0.310462,0.000000,0.000000,0.113796,-0.348426,0.930403,0.000000,-0.288593,0.883625,0.368674,0.000000,-1841524.492488,5638448.511037,2336774.783819,1],    "boundingVolume": {    "region": [1.886436,0.377540,1.886516,0.377624,0.000000,12.407797]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/6/18.b3dm"}}}