{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950054,-0.312086,0.000000,0.000000,0.174020,-0.529753,0.830108,0.000000,-0.258522,0.786994,0.560185,0.000000,-1650621.755475,5024836.079033,3552750.430583,1],    "boundingVolume": {    "region": [1.888102,0.594543,1.888266,0.594674,0.000000,11.823777]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/9/7_1377892.b3dm"}}}