{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949035,-0.315172,0.000000,0.000000,0.175952,-0.529821,0.829657,0.000000,-0.260935,0.785719,0.560855,0.000000,-1666035.546548,5016707.678052,3557011.509490,1],    "boundingVolume": {    "region": [1.891365,0.595365,1.891503,0.595472,0.000000,8.811778]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/8/3_1072377.b3dm"}}}