{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.952583,-0.304279,0.000000,0.000000,0.112943,-0.353582,0.928560,0.000000,-0.282278,0.883708,0.373336,0.000000,-1801250.797288,5639039.872224,2366351.171977,1],    "boundingVolume": {    "region": [1.879928,0.382566,1.880028,0.382638,0.000000,19.583181]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/6/31/49_41860.b3dm"}}}