{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.899335,-0.437260,0.000000,0.000000,0.282960,-0.581980,0.762386,0.000000,-0.332421,0.683707,0.649647,0.000000,-2123225.586639,4366953.424363,4121622.671311,1],    "boundingVolume": {    "region": [2.023258,0.707065,2.023433,0.707174,0.000000,7.902261]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/20/15_1800705.b3dm"}}}