{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950452,-0.310873,0.000000,0.000000,0.114384,-0.349715,0.929847,0.000000,-0.288800,0.882967,0.370088,0.000000,-1842849.207778,5634265.224456,2345742.872306,1],    "boundingVolume": {    "region": [1.886833,0.379064,1.886982,0.379143,0.000000,28.799661]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/21/15_4327.b3dm"}}}