{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.948809,-0.315851,0.000000,0.000000,0.176272,-0.529517,0.829783,0.000000,-0.261537,0.785653,0.560668,0.000000,-1669878.299341,5016281.304285,3555818.719836,1],    "boundingVolume": {    "region": [1.892101,0.595080,1.892197,0.595303,0.000000,8.815350]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/13_1179450.b3dm"}}}