{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.858263,-0.513210,0.000000,0.000000,0.262431,-0.438875,0.859371,0.000000,-0.440260,0.736266,0.513890,0.000000,-2810525.673492,4700161.632382,3258603.128767,1],    "boundingVolume": {    "region": [2.109635,0.539651,2.109799,0.539776,0.000000,46.872766]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/8/1_299553.b3dm"}}}