{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950589,-0.310452,0.000000,0.000000,0.173613,-0.531595,0.829015,0.000000,-0.256826,0.786391,0.561809,0.000000,-1639807.163066,5021017.565308,3563072.478147,1],    "boundingVolume": {    "region": [1.886416,0.596521,1.886513,0.596620,0.000000,13.019579]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/5/6_1391333.b3dm"}}}