{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.852970,-0.521959,0.000000,0.000000,0.269380,-0.440213,0.856532,0.000000,-0.446272,0.729284,0.518639,0.000000,-2848947.999139,4655667.497885,3288767.655309,1],    "boundingVolume": {    "region": [2.119896,0.545216,2.119989,0.545300,0.000000,76.431566]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/2/1/3_3631.b3dm"}}}