{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.899344,-0.437241,0.000000,0.000000,0.282957,-0.582004,0.762369,0.000000,-0.332399,0.683699,0.649666,0.000000,-2123088.722106,4366899.864299,4121749.067826,1],    "boundingVolume": {    "region": [2.023238,0.707091,2.023412,0.707200,0.000000,14.860059]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/20/15_1800810.b3dm"}}}