{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949395,-0.314085,0.000000,0.000000,0.175358,-0.530060,0.829630,0.000000,-0.260027,0.785991,0.560895,0.000000,-1660234.241792,5018448.165589,3557267.106179,1],    "boundingVolume": {    "region": [1.890208,0.595334,1.890370,0.595600,0.000000,8.802578]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/12/14_1367721.b3dm"}}}