{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.858650,-0.512562,0.000000,0.000000,0.262232,-0.439295,0.859217,0.000000,-0.439624,0.736465,0.514150,0.000000,-2806469.160000,4701434.007617,3260252.283951,1],    "boundingVolume": {    "region": [2.108880,0.539954,2.109044,0.540079,0.000000,23.404700]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/3/4_220170.b3dm"}}}