{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949254,-0.314511,0.000000,0.000000,0.175893,-0.530877,0.828994,0.000000,-0.260178,0.785267,0.561840,0.000000,-1661206.408505,5013839.025110,3563267.118552,1],    "boundingVolume": {    "region": [1.890687,0.596597,1.890788,0.596619,0.000000,18.185274]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/15/9_1419965.b3dm"}}}