{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949954,-0.312389,0.000000,0.000000,0.174701,-0.531256,0.829004,0.000000,-0.258425,0.785855,0.561825,0.000000,-1650016.789545,5017596.504564,3563177.692196,1],    "boundingVolume": {    "region": [1.888434,0.596486,1.888572,0.596695,0.000000,8.733910]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/3/7/4_1405520.b3dm"}}}