{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.858782,-0.512341,0.000000,0.000000,0.262058,-0.439259,0.859289,0.000000,-0.439472,0.736640,0.514030,0.000000,-2805492.215618,4702550.923164,3259487.334516,1],    "boundingVolume": {    "region": [2.108622,0.539813,2.108786,0.539939,0.000000,8.654366]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/2/3_206926.b3dm"}}}