{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949759,-0.312982,0.000000,0.000000,0.174733,-0.530237,0.829649,0.000000,-0.259120,0.786311,0.560867,0.000000,-1654443.803866,5020487.993277,3557087.797564,1],    "boundingVolume": {    "region": [1.889046,0.595367,1.889210,0.595499,0.000000,12.818894]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/15/14_1355446.b3dm"}}}