{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949300,-0.314371,0.000000,0.000000,0.175624,-0.530328,0.829402,0.000000,-0.260191,0.785696,0.561234,0.000000,-1661287.435469,5016565.575501,3559415.657912,1],    "boundingVolume": {    "region": [1.890521,0.595822,1.890659,0.595929,0.000000,8.729292]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/2/8_1361974.b3dm"}}}