{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950023,-0.312181,0.000000,0.000000,0.174225,-0.530197,0.829781,0.000000,-0.258498,0.786656,0.560671,0.000000,-1650473.906739,5022685.707121,3555837.691464,1],    "boundingVolume": {    "region": [1.888202,0.595130,1.888366,0.595261,0.000000,8.820528]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/9/12_1456650.b3dm"}}}