{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950639,-0.310299,0.000000,0.000000,0.116558,-0.357089,0.926769,0.000000,-0.287302,0.880184,0.377802,0.000000,-1833326.901841,5616615.824091,2394686.398592,1],    "boundingVolume": {    "region": [1.886245,0.387357,1.886364,0.387486,0.000000,7.966830]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/21/6_60416.b3dm"}}}