{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949019,-0.315218,0.000000,0.000000,0.175991,-0.529852,0.829629,0.000000,-0.260964,0.785680,0.560897,0.000000,-1666221.386645,5016458.426650,3557274.208835,1],    "boundingVolume": {    "region": [1.891414,0.595415,1.891551,0.595522,0.000000,8.587041]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/8/4_1071751.b3dm"}}}