{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950549,-0.310576,0.000000,0.000000,0.173709,-0.531655,0.828956,0.000000,-0.256911,0.786301,0.561896,0.000000,-1640344.985562,5020446.294527,3563626.123492,1],    "boundingVolume": {    "region": [1.886546,0.596627,1.886644,0.596725,0.000000,10.330628]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/7_1328144.b3dm"}}}