{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949546,-0.313627,0.000000,0.000000,0.174923,-0.529602,0.830014,0.000000,-0.259769,0.786484,0.560324,0.000000,-1658586.167231,5021583.142859,3553634.442323,1],    "boundingVolume": {    "region": [1.889726,0.594644,1.889888,0.594910,0.000000,8.803873]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/9/12_1379719.b3dm"}}}