{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949214,-0.314630,0.000000,0.000000,0.175960,-0.530856,0.828993,0.000000,-0.260276,0.785233,0.561841,0.000000,-1661835.261102,5013625.370288,3563274.465715,1],    "boundingVolume": {    "region": [1.890813,0.596598,1.890914,0.596620,0.000000,11.086840]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/16/9_1420141.b3dm"}}}