{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950394,-0.311050,0.000000,0.000000,0.173964,-0.531537,0.828978,0.000000,-0.257310,0.786195,0.561863,0.000000,-1642895.548275,5019764.175960,3563413.512825,1],    "boundingVolume": {    "region": [1.887045,0.596586,1.887143,0.596685,0.000000,8.795997]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/12/6_1393449.b3dm"}}}