{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950549,-0.310573,0.000000,0.000000,0.173716,-0.531680,0.828938,0.000000,-0.256903,0.786285,0.561922,0.000000,-1640299.338634,5020343.249181,3563791.187363,1],    "boundingVolume": {    "region": [1.886544,0.596658,1.886641,0.596757,0.000000,12.343590]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/7_1394799.b3dm"}}}