{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949227,-0.314592,0.000000,0.000000,0.175866,-0.530644,0.829149,0.000000,-0.260294,0.785393,0.561610,0.000000,-1661948.955699,5014638.635768,3561805.199797,1],    "boundingVolume": {    "region": [1.890755,0.596277,1.890892,0.596383,0.000000,6.526549]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/3/12_1415950.b3dm"}}}