{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950096,-0.311957,0.000000,0.000000,0.174449,-0.531300,0.829028,0.000000,-0.258076,0.785996,0.561789,0.000000,-1647786.937362,5018495.286345,3562945.380115,1],    "boundingVolume": {    "region": [1.887980,0.596442,1.888118,0.596651,0.000000,8.673000]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/3/4/4_1398589.b3dm"}}}