{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949064,-0.315083,0.000000,0.000000,0.115886,-0.349062,0.929907,0.000000,-0.292730,0.881735,0.369936,0.000000,-1867928.512629,5626403.630913,2344782.094511,1],    "boundingVolume": {    "region": [1.891288,0.378905,1.891393,0.378975,0.000000,37.599186]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/6/21_5997.b3dm"}}}