{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949039,-0.315158,0.000000,0.000000,0.175956,-0.529858,0.829632,0.000000,-0.260916,0.785699,0.560892,0.000000,-1665914.542603,5016582.782514,3557242.764151,1],    "boundingVolume": {    "region": [1.891351,0.595409,1.891489,0.595516,0.000000,8.713676]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/8/4_1374653.b3dm"}}}