{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.899370,-0.437188,0.000000,0.000000,0.282917,-0.582009,0.762380,0.000000,-0.332363,0.683728,0.649654,0.000000,-2122859.202682,4367084.869909,4121671.792202,1],    "boundingVolume": {    "region": [2.023179,0.707075,2.023353,0.707184,0.000000,14.345366]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/20/15_1800734.b3dm"}}}