{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.871269,-0.490805,0.000000,0.000000,0.211967,-0.376281,0.901933,0.000000,-0.442116,0.784837,0.434240,0.000000,-2821658.029831,5008959.424138,2752840.397956,1],    "boundingVolume": {    "region": [2.083754,0.449154,2.083866,0.449235,0.000000,109.170094]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/3/4/4_226987.b3dm"}}}