{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.858332,-0.513095,0.000000,0.000000,0.262628,-0.439339,0.859074,0.000000,-0.440007,0.736068,0.514391,0.000000,-2808915.856391,4698904.395053,3261781.386732,1],    "boundingVolume": {    "region": [2.109500,0.540234,2.109665,0.540360,0.000000,26.930900]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/6_247488.b3dm"}}}