{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949869,-0.312647,0.000000,0.000000,0.115144,-0.349826,0.929712,0.000000,-0.290405,0.882296,0.370431,0.000000,-1853094.492995,5629990.328417,2347919.989790,1],    "boundingVolume": {    "region": [1.888705,0.379382,1.888844,0.379563,0.000000,4.171567]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/7_5549.b3dm"}}}