{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.871406,-0.490562,0.000000,0.000000,0.211767,-0.376171,0.902026,0.000000,-0.441943,0.785042,0.434045,0.000000,-2820550.909777,5010268.425682,2751600.925909,1],    "boundingVolume": {    "region": [2.083474,0.448937,2.083587,0.449018,0.000000,62.954785]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/3/1/1_221673.b3dm"}}}