{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949101,-0.314971,0.000000,0.000000,0.175978,-0.530274,0.829362,0.000000,-0.260676,0.785492,0.561293,0.000000,-1664380.731887,5015269.196068,3559794.856270,1],    "boundingVolume": {    "region": [1.891154,0.595894,1.891291,0.596001,0.000000,11.857457]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/9_1361472.b3dm"}}}