{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950662,-0.310229,0.000000,0.000000,0.173575,-0.531901,0.828826,0.000000,-0.256584,0.786270,0.562089,0.000000,-1638259.235917,5020252.126274,3564850.663174,1],    "boundingVolume": {    "region": [1.886148,0.596824,1.886313,0.596994,0.000000,8.821139]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/3/6/4_1396627.b3dm"}}}