{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.858259,-0.513217,0.000000,0.000000,0.262740,-0.439383,0.859017,0.000000,-0.440083,0.735955,0.514487,0.000000,-2809400.163581,4698188.174888,3262391.817479,1],    "boundingVolume": {    "region": [2.109644,0.540347,2.109808,0.540472,0.000000,54.673166]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/8/7_391953.b3dm"}}}