{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950547,-0.310582,0.000000,0.000000,0.173681,-0.531557,0.829025,0.000000,-0.256937,0.786366,0.561794,0.000000,-1640515.395207,5020855.854667,3562974.994885,1],    "boundingVolume": {    "region": [1.886552,0.596503,1.886650,0.596602,0.000000,12.750379]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/5_1390864.b3dm"}}}