{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.858352,-0.513061,0.000000,0.000000,0.262690,-0.439482,0.858982,0.000000,-0.439931,0.736005,0.514545,0.000000,-2808427.980276,4698508.873858,3262764.476677,1],    "boundingVolume": {    "region": [2.109461,0.540415,2.109625,0.540540,0.000000,5.088766]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/8_261109.b3dm"}}}