{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949294,-0.314391,0.000000,0.000000,0.175614,-0.530261,0.829448,0.000000,-0.260222,0.785733,0.561166,0.000000,-1661486.602056,5016805.041375,3558988.045057,1],    "boundingVolume": {    "region": [1.890543,0.595741,1.890680,0.595847,0.000000,5.579467]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/2/7_1363415.b3dm"}}}