{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950352,-0.311176,0.000000,0.000000,0.173681,-0.530433,0.829744,0.000000,-0.257655,0.786893,0.560726,0.000000,-1645088.153000,5024202.746775,3556187.911090,1],    "boundingVolume": {    "region": [1.887177,0.595204,1.887277,0.595320,0.000000,8.789344]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/8_1454362.b3dm"}}}