{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.951295,-0.308283,0.000000,0.000000,0.171238,-0.528403,0.831545,0.000000,-0.255818,0.789399,0.558037,0.000000,-1633347.101104,5040154.062823,3539101.868159,1],    "boundingVolume": {    "region": [1.884130,0.591975,1.884238,0.592062,0.000000,8.016085]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/6/50/46_1383093.b3dm"}}}