{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950457,-0.310857,0.000000,0.000000,0.173859,-0.531580,0.828973,0.000000,-0.257149,0.786241,0.561871,0.000000,-1641865.860077,5020061.719907,3563468.564446,1],    "boundingVolume": {    "region": [1.886842,0.596597,1.886940,0.596695,0.000000,19.090562]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/9/6_1393766.b3dm"}}}