{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.943220,-0.332169,0.000000,0.000000,0.186281,-0.528960,0.827950,0.000000,-0.274436,0.779283,0.563385,0.000000,-1752252.161073,4975664.117904,3573089.364123,1],    "boundingVolume": {    "region": [1.909326,0.598428,1.909470,0.598526,0.000000,8.218973]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/9/7_568790.b3dm"}}}