{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.871377,-0.490614,0.000000,0.000000,0.211783,-0.376147,0.902032,0.000000,-0.441993,0.785021,0.434033,0.000000,-2820870.869754,5010131.790575,2751522.248275,1],    "boundingVolume": {    "region": [2.083535,0.448924,2.083647,0.449004,0.000000,39.098830]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/3/2/1_221290.b3dm"}}}