{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949113,-0.314935,0.000000,0.000000,0.176126,-0.530787,0.829003,0.000000,-0.260532,0.785158,0.561827,0.000000,-1663465.933770,5013147.737236,3563186.186327,1],    "boundingVolume": {    "region": [1.891134,0.596582,1.891236,0.596603,0.000000,7.709373]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/20/9_1418709.b3dm"}}}