SHTns is a high-performance Spherical Harmonic Transform library. It was designed for numerical simulation (fluid flows, mhd, etc.) in spherical geometries, but can be used for any kind of problem involving scalar or vector spherical harmonics. It is very fast, thanks to careful vectorization and runtime tuning. It supports multi-threaded transforms via OpenMP. It features scalar and vector transforms, synthesis and analysis, and flexible truncation and normalization. A Python interface is included.
Aspose.Diagram is a class library for working with MS Visio files. It is a pure .NET alternative for MS Visio Object Model. It enables developers to work with VSD and VDX files on ASP.NET Web applications, Web services, and desktop applications. It makes use of the advanced functionality of Visio's services to manipulate Visio documents on a server. A developer can open files and manipulate the elements of the diagram, from lines and fills to more complex elements, and then export to native Visio formats or XML.