{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950584,-0.310467,0.000000,0.000000,0.173604,-0.531539,0.829052,0.000000,-0.256851,0.786423,0.561753,0.000000,-1639965.358523,5021220.256869,3562716.416185,1],    "boundingVolume": {    "region": [1.886432,0.596454,1.886530,0.596552,0.000000,20.032815]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/5/5_1389873.b3dm"}}}