{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950011,-0.312215,0.000000,0.000000,0.174513,-0.531011,0.829200,0.000000,-0.258344,0.786090,0.561534,0.000000,-1649493.176824,5019092.153870,3561325.664871,1],    "boundingVolume": {    "region": [1.888235,0.596136,1.888406,0.596341,0.000000,16.131921]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/3/1/3_1438416.b3dm"}}}