{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950496,-0.310737,0.000000,0.000000,0.173780,-0.531566,0.828998,0.000000,-0.257057,0.786298,0.561833,0.000000,-1641281.326773,5020425.014451,3563227.643045,1],    "boundingVolume": {    "region": [1.886716,0.596551,1.886813,0.596650,0.000000,18.141249]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/8/6_1392355.b3dm"}}}