{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949116,-0.314927,0.000000,0.000000,0.175901,-0.530126,0.829473,0.000000,-0.260674,0.785610,0.561129,0.000000,-1664367.032659,5016018.989458,3558751.701401,1],    "boundingVolume": {    "region": [1.891107,0.595696,1.891244,0.595802,0.000000,8.619018]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/7_1364543.b3dm"}}}