{"asset":{"generatetool":"mars3d@mars3d.cn/osgb2tiles3","gltfUpAxis":"Z","version":"1.0"},"root":{"boundingVolume":{"box":[143.813438415527,-196.923965454102,426.702011108398,24.1915817260742,0,0,0,27.7508392333984,0,0,0,7.09315490722656]},"content":{"uri":"Tile_+006_+000_L17_00.b3dm"},"geometricError":0,"pixel":75,"radius":37.5977210998535}}