{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949146,-0.314835,0.000000,0.000000,0.116071,-0.349924,0.929559,0.000000,-0.292389,0.881478,0.370816,0.000000,-1865756.895295,5624777.831822,2350367.340155,1],    "boundingVolume": {    "region": [1.891025,0.379830,1.891133,0.379946,0.000000,71.051956]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/14/21_77656.b3dm"}}}