{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950458,-0.310854,0.000000,0.000000,0.173850,-0.531559,0.828988,0.000000,-0.257151,0.786257,0.561848,0.000000,-1641878.997087,5020162.287033,3563321.821411,1],    "boundingVolume": {    "region": [1.886839,0.596569,1.886936,0.596668,0.000000,15.117020]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/9/6_1392948.b3dm"}}}