{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949172,-0.314757,0.000000,0.000000,0.175695,-0.529822,0.829711,0.000000,-0.260608,0.785885,0.560775,0.000000,-1663948.908712,5017764.537034,3556500.921756,1],    "boundingVolume": {    "region": [1.890928,0.595268,1.891065,0.595375,0.000000,8.807465]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/5/2_1457890.b3dm"}}}