{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949208,-0.314649,0.000000,0.000000,0.116539,-0.351565,0.928882,0.000000,-0.292001,0.880885,0.372528,0.000000,-1863287.199014,5621018.198262,2361222.484370,1],    "boundingVolume": {    "region": [1.890814,0.381681,1.890952,0.381781,0.000000,9.468847]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/18/18_68251.b3dm"}}}