{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949108,-0.314950,0.000000,0.000000,0.176146,-0.530819,0.828978,0.000000,-0.260536,0.785131,0.561863,0.000000,-1663494.733966,5012971.519412,3563419.085115,1],    "boundingVolume": {    "region": [1.891150,0.596626,1.891251,0.596648,0.000000,8.877669]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/20/11_1421220.b3dm"}}}