{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.948835,-0.315772,0.000000,0.000000,0.176325,-0.529825,0.829575,0.000000,-0.261406,0.785476,0.560977,0.000000,-1669041.642185,5015156.485447,3557784.368461,1],    "boundingVolume": {    "region": [1.892018,0.595454,1.892114,0.595677,0.000000,8.815559]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/5/15_1181731.b3dm"}}}