{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.871415,-0.490547,0.000000,0.000000,0.211761,-0.376176,0.902025,0.000000,-0.441929,0.785049,0.434047,0.000000,-2820460.890816,5010312.371142,2751613.098346,1],    "boundingVolume": {    "region": [2.083457,0.448940,2.083569,0.449020,0.000000,62.954785]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/3/1/1_221729.b3dm"}}}