{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.858369,-0.513033,0.000000,0.000000,0.262469,-0.439144,0.859222,0.000000,-0.440031,0.736228,0.514141,0.000000,-2809066.831514,4699920.845352,3260197.207661,1],    "boundingVolume": {    "region": [2.109429,0.539944,2.109593,0.540069,0.000000,101.578900]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/4_219705.b3dm"}}}