{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.871377,-0.490615,0.000000,0.000000,0.211785,-0.376149,0.902030,0.000000,-0.441993,0.785020,0.434035,0.000000,-2820870.782664,5010122.737914,2751538.710162,1],    "boundingVolume": {    "region": [2.083535,0.448927,2.083648,0.449007,0.000000,50.372445]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/3/2/1_221350.b3dm"}}}