{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950587,-0.310459,0.000000,0.000000,0.173598,-0.531535,0.829056,0.000000,-0.256845,0.786429,0.561747,0.000000,-1639926.785818,5021257.439290,3562681.998946,1],    "boundingVolume": {    "region": [1.886423,0.596447,1.886521,0.596546,0.000000,20.032815]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/5/5_1389779.b3dm"}}}