{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950100,-0.311947,0.000000,0.000000,0.174188,-0.530527,0.829578,0.000000,-0.258240,0.786525,0.560972,0.000000,-1648830.323897,5021858.244958,3557755.459026,1],    "boundingVolume": {    "region": [1.887988,0.595501,1.888088,0.595618,0.000000,8.791589]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/15/11_1455877.b3dm"}}}