{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950636,-0.310309,0.000000,0.000000,0.173534,-0.531625,0.829012,0.000000,-0.256708,0.786427,0.561813,0.000000,-1639049.143417,5021246.375370,3563098.636678,1],    "boundingVolume": {    "region": [1.886266,0.596526,1.886363,0.596625,0.000000,11.649337]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/3/6_1391469.b3dm"}}}