{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.899338,-0.437254,0.000000,0.000000,0.282966,-0.582001,0.762368,0.000000,-0.332408,0.683693,0.649668,0.000000,-2123146.522655,4366864.095348,4121757.136550,1],    "boundingVolume": {    "region": [2.023252,0.707093,2.023426,0.707202,0.000000,14.860059]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/20/15_1800815.b3dm"}}}