{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950556,-0.310554,0.000000,0.000000,0.173556,-0.531226,0.829263,0.000000,-0.256989,0.786601,0.561441,0.000000,-1640842.191822,5022350.808664,3560731.952087,1],    "boundingVolume": {    "region": [1.886523,0.596076,1.886621,0.596175,0.000000,8.780530]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/1_1426860.b3dm"}}}