{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949768,-0.312955,0.000000,0.000000,0.115335,-0.350023,0.929614,0.000000,-0.290660,0.882108,0.370679,0.000000,-1854724.702768,5628793.158591,2349492.001304,1],    "boundingVolume": {    "region": [1.889030,0.379649,1.889168,0.379830,0.000000,35.627210]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/8/8_73546.b3dm"}}}