{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.899345,-0.437241,0.000000,0.000000,0.282952,-0.581993,0.762379,0.000000,-0.332403,0.683708,0.649654,0.000000,-2123114.780978,4366959.150863,4121673.341430,1],    "boundingVolume": {    "region": [2.023237,0.707075,2.023412,0.707184,0.000000,14.345366]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/20/15_1800738.b3dm"}}}