{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950583,-0.310470,0.000000,0.000000,0.173610,-0.531552,0.829043,0.000000,-0.256850,0.786413,0.561767,0.000000,-1639960.527380,5021158.378097,3562805.250357,1],    "boundingVolume": {    "region": [1.886435,0.596471,1.886533,0.596569,0.000000,20.032815]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/5/5_1390166.b3dm"}}}