{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950431,-0.310936,0.000000,0.000000,0.173499,-0.530330,0.829848,0.000000,-0.257488,0.787058,0.560571,0.000000,-1644022.077097,5025252.279667,3555204.466734,1],    "boundingVolume": {    "region": [1.886882,0.595002,1.887065,0.595148,0.000000,8.789362]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/14/14_1449630.b3dm"}}}