{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.948838,-0.315764,0.000000,0.000000,0.176322,-0.529828,0.829574,0.000000,-0.261399,0.785477,0.560978,0.000000,-1669000.150480,5015164.553444,3557792.405899,1],    "boundingVolume": {    "region": [1.892010,0.595455,1.892106,0.595678,0.000000,8.815559]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/5/15_1181736.b3dm"}}}