{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949636,-0.313356,0.000000,0.000000,0.174875,-0.529965,0.829793,0.000000,-0.259475,0.786346,0.560653,0.000000,-1656708.169103,5020710.318715,3555728.992082,1],    "boundingVolume": {    "region": [1.889440,0.595042,1.889602,0.595308,0.000000,8.819706]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/13_1457341.b3dm"}}}