{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.942110,-0.335305,0.000000,0.000000,0.187715,-0.527424,0.828605,0.000000,-0.277248,0.778988,0.562415,0.000000,-1770202.914380,4973761.432000,3566926.418543,1],    "boundingVolume": {    "region": [1.912663,0.597273,1.912787,0.597335,0.000000,8.588381]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/21/9_1288546.b3dm"}}}