{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950060,-0.312067,0.000000,0.000000,0.174005,-0.529741,0.830118,0.000000,-0.258510,0.787009,0.560169,0.000000,-1650545.378622,5024934.633007,3552647.217565,1],    "boundingVolume": {    "region": [1.888082,0.594524,1.888246,0.594655,0.000000,11.823777]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/9/7_1458517.b3dm"}}}