{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949301,-0.314370,0.000000,0.000000,0.175623,-0.530328,0.829403,0.000000,-0.260191,0.785696,0.561233,0.000000,-1661283.966775,5016569.266644,3559412.098620,1],    "boundingVolume": {    "region": [1.890520,0.595822,1.890658,0.595928,0.000000,8.729292]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/2/8_1361979.b3dm"}}}