{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950633,-0.310319,0.000000,0.000000,0.173536,-0.531611,0.829021,0.000000,-0.256718,0.786433,0.561800,0.000000,-1639116.739366,5021283.411805,3563015.904788,1],    "boundingVolume": {    "region": [1.886276,0.596511,1.886373,0.596609,0.000000,11.649337]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/3/6_1391023.b3dm"}}}