{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.897768,-0.440469,0.000000,0.000000,0.282828,-0.576462,0.766616,0.000000,-0.336733,0.686332,0.644639,0.000000,-2150721.663326,4383623.045036,4089761.738293,1],    "boundingVolume": {    "region": [2.026854,0.700516,2.026980,0.700585,0.000000,20.008293]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/9/6_393974.b3dm"}}}