{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.894736,-0.446595,0.000000,0.000000,0.284434,-0.569854,0.770950,0.000000,-0.343362,0.687913,0.639436,0.000000,-2193012.719470,4393617.513930,4056666.504103,1],    "boundingVolume": {    "region": [2.033686,0.693703,2.033819,0.693827,0.000000,41.911348]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/6_1018718.b3dm"}}}