{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950232,-0.311544,0.000000,0.000000,0.115367,-0.351877,0.928909,0.000000,-0.289128,0.881862,0.372457,0.000000,-1844955.938227,5627249.537627,2360777.579061,1],    "boundingVolume": {    "region": [1.887551,0.381604,1.887677,0.381707,0.000000,9.867863]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/15/17_66869.b3dm"}}}