{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.948807,-0.315855,0.000000,0.000000,0.176082,-0.528937,0.830193,0.000000,-0.261672,0.786043,0.560057,0.000000,-1670733.294795,5018763.509516,3551938.539869,1],    "boundingVolume": {    "region": [1.892107,0.594343,1.892202,0.594566,0.000000,8.773131]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/9_1212872.b3dm"}}}