{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.858487,-0.512835,0.000000,0.000000,0.262611,-0.439611,0.858940,0.000000,-0.439716,0.736085,0.514616,0.000000,-2807056.539904,4699015.249799,3263212.367176,1],    "boundingVolume": {    "region": [2.109198,0.540497,2.109363,0.540622,0.000000,18.992233]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/5/8_268854.b3dm"}}}