{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950218,-0.311587,0.000000,0.000000,0.174153,-0.531098,0.829220,0.000000,-0.257830,0.786280,0.561504,0.000000,-1646212.959515,5020304.335004,3561136.146483,1],    "boundingVolume": {    "region": [1.887590,0.596098,1.887728,0.596307,0.000000,8.813532]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/3/1/2_1341974.b3dm"}}}