{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.858374,-0.513024,0.000000,0.000000,0.262596,-0.439366,0.859070,0.000000,-0.439945,0.736100,0.514398,0.000000,-2808517.746713,4699110.200288,3261827.399773,1],    "boundingVolume": {    "region": [2.109419,0.540243,2.109583,0.540368,0.000000,26.930900]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/6_247834.b3dm"}}}