{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950573,-0.310500,0.000000,0.000000,0.173550,-0.531311,0.829210,0.000000,-0.256928,0.786565,0.561519,0.000000,-1640451.840389,5022121.692581,3561231.565340,1],    "boundingVolume": {    "region": [1.886467,0.596171,1.886564,0.596270,0.000000,8.811806]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/5/2_1427380.b3dm"}}}