{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.898350,-0.439281,0.000000,0.000000,0.284111,-0.581019,0.762691,0.000000,-0.334092,0.683234,0.649288,0.000000,-2133897.632583,4363919.807878,4119339.046910,1],    "boundingVolume": {    "region": [2.025544,0.706610,2.025645,0.706685,0.000000,8.014777]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/9/7_1819528.b3dm"}}}