{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949967,-0.312349,0.000000,0.000000,0.174680,-0.531266,0.829002,0.000000,-0.258392,0.785864,0.561828,0.000000,-1649802.392089,5017653.708602,3563196.288309,1],    "boundingVolume": {    "region": [1.888392,0.596490,1.888530,0.596699,0.000000,8.760017]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/3/7/4_1405559.b3dm"}}}