{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949835,-0.312750,0.000000,0.000000,0.174264,-0.529245,0.830380,0.000000,-0.259158,0.787074,0.559778,0.000000,-1654683.197579,5025339.125739,3550166.097805,1],    "boundingVolume": {    "region": [1.888803,0.593985,1.888965,0.594251,0.000000,8.297943]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/3/9_1378890.b3dm"}}}