{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.858778,-0.512347,0.000000,0.000000,0.262113,-0.439345,0.859228,0.000000,-0.439446,0.736584,0.514131,0.000000,-2805331.036670,4702196.814857,3260132.509796,1],    "boundingVolume": {    "region": [2.108630,0.539932,2.108794,0.540057,0.000000,33.926833]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/2/4_219327.b3dm"}}}