{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950376,-0.311105,0.000000,0.000000,0.173751,-0.530780,0.829508,0.000000,-0.257521,0.786686,0.561077,0.000000,-1644240.281268,5022887.955550,3558421.575998,1],    "boundingVolume": {    "region": [1.887102,0.595628,1.887202,0.595745,0.000000,8.748745]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/5/12_1343975.b3dm"}}}