{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949969,-0.312344,0.000000,0.000000,0.174711,-0.531369,0.828929,0.000000,-0.258365,0.785796,0.561936,0.000000,-1649630.200038,5017219.034421,3563883.390578,1],    "boundingVolume": {    "region": [1.888387,0.596621,1.888525,0.596829,0.000000,8.760017]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/3/7/4_1407506.b3dm"}}}