{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.943119,-0.332456,0.000000,0.000000,0.186241,-0.528332,0.828359,0.000000,-0.274810,0.779589,0.562779,0.000000,-1754638.794557,4977603.873785,3569240.298440,1],    "boundingVolume": {    "region": [1.909640,0.597705,1.909765,0.597784,0.000000,8.639790]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/8/9_1286643.b3dm"}}}