{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.858276,-0.513188,0.000000,0.000000,0.262794,-0.439506,0.858938,0.000000,-0.440017,0.735902,0.514620,0.000000,-2808981.191362,4697849.132332,3263235.034250,1],    "boundingVolume": {    "region": [2.109610,0.540501,2.109774,0.540626,0.000000,13.252766]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/8/8_404016.b3dm"}}}