{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.898031,-0.439933,0.000000,0.000000,0.281322,-0.574260,0.768819,0.000000,-0.337297,0.688522,0.642003,0.000000,-2154303.535846,4397559.987725,4072992.841245,1],    "boundingVolume": {    "region": [2.026274,0.697079,2.026367,0.697136,0.000000,42.363821]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/3/4/7_752899.b3dm"}}}