{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.898786,-0.438388,0.000000,0.000000,0.283122,-0.580457,0.763487,0.000000,-0.333764,0.684284,0.648350,0.000000,-2131792.129613,4370608.759217,4113373.525746,1],    "boundingVolume": {    "region": [2.024518,0.705356,2.024684,0.705475,0.000000,11.154828]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/8/7_1831718.b3dm"}}}