{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950569,-0.310514,0.000000,0.000000,0.173653,-0.531599,0.829003,0.000000,-0.256875,0.786363,0.561826,0.000000,-1640116.429490,5020840.813525,3563178.488271,1],    "boundingVolume": {    "region": [1.886482,0.596542,1.886579,0.596640,0.000000,12.847205]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/6_1391962.b3dm"}}}