{"asset":{"generatetool":"mars3d@mars3d.cn/osgb2tiles3","gltfUpAxis":"Z","version":"1.0"},"root":{"boundingVolume":{"box":[-143.638961791992,49.4815053939819,428.574951171875,23.8761901855469,0,0,0,30.6435708999634,0,0,0,9.21749877929688]},"content":{"uri":"Tile_+000_+005_L17_00.b3dm"},"geometricError":0,"pixel":80,"radius":40.3341979980469}}