{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949074,-0.315052,0.000000,0.000000,0.175843,-0.529715,0.829748,0.000000,-0.260865,0.785838,0.560721,0.000000,-1665586.633905,5017467.714044,3556155.394935,1],    "boundingVolume": {    "region": [1.891240,0.595203,1.891377,0.595309,0.000000,8.820004]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/2_1375225.b3dm"}}}