{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950536,-0.310614,0.000000,0.000000,0.173708,-0.531577,0.829006,0.000000,-0.256958,0.786339,0.561821,0.000000,-1640650.776153,5020686.268781,3563150.443698,1],    "boundingVolume": {    "region": [1.886587,0.596536,1.886685,0.596635,0.000000,12.097908]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/6_1391813.b3dm"}}}