{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.897470,-0.441075,0.000000,0.000000,0.283286,-0.576412,0.766485,0.000000,-0.337138,0.685986,0.644795,0.000000,-2153312.444600,4381416.310827,4090756.353237,1],    "boundingVolume": {    "region": [2.027529,0.700721,2.027656,0.700790,0.000000,8.214509]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/15/9_859476.b3dm"}}}