{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.899393,-0.437140,0.000000,0.000000,0.282882,-0.582016,0.762388,0.000000,-0.332330,0.683753,0.649645,0.000000,-2122650.014779,4367243.341142,4121612.021123,1],    "boundingVolume": {    "region": [2.023126,0.707063,2.023300,0.707172,0.000000,6.551217]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/20/15_1800697.b3dm"}}}