{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950197,-0.311651,0.000000,0.000000,0.174406,-0.531747,0.828750,0.000000,-0.257736,0.785813,0.562201,0.000000,-1645616.773791,5017336.295860,3565562.049422,1],    "boundingVolume": {    "region": [1.887651,0.596952,1.887803,0.597137,0.000000,8.814296]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/3/4/6_1401172.b3dm"}}}