{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949308,-0.314346,0.000000,0.000000,0.175605,-0.530317,0.829414,0.000000,-0.260175,0.785713,0.561217,0.000000,-1661181.554422,5016676.061931,3559310.065337,1],    "boundingVolume": {    "region": [1.890496,0.595802,1.890633,0.595909,0.000000,8.597043]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/1/8_1362250.b3dm"}}}