{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950585,-0.310465,0.000000,0.000000,0.173623,-0.531601,0.829009,0.000000,-0.256836,0.786382,0.561818,0.000000,-1639867.590660,5020958.046875,3563128.163556,1],    "boundingVolume": {    "region": [1.886430,0.596532,1.886528,0.596631,0.000000,13.834999]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/5/6_1391648.b3dm"}}}