{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949212,-0.314638,0.000000,0.000000,0.175964,-0.530854,0.828994,0.000000,-0.260283,0.785231,0.561840,0.000000,-1661879.947777,5013613.113770,3563270.893830,1],    "boundingVolume": {    "region": [1.890821,0.596598,1.890923,0.596619,0.000000,11.086840]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/16/9_1420090.b3dm"}}}