{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949676,-0.313235,0.000000,0.000000,0.174773,-0.529880,0.829868,0.000000,-0.259398,0.786452,0.560541,0.000000,-1656221.508801,5021380.781058,3555013.694998,1],    "boundingVolume": {    "region": [1.889313,0.594906,1.889475,0.595172,0.000000,8.811738]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/13_1457269.b3dm"}}}