Lassalle Technologies AddFlow for WPF 2016

Addflow for WPF 2016 is a WPF Custom control created with the Microsoft .NET Framework 4.0 and VS 2015. It provides a small deployment assembly (247 Kb), a light programming interface, speed (We use virtualization and low-level DrawingVisual objects to obtain the most lightweight way to perform drawing), full integration with the WPF environment. You may order either a standard edition, either a professional edition of AddFlow. The professional edition provides a set of graph layout algorithms.

https://developer.team/dotnet/30079-lassalle-technologies-addflow-for-wpf-2016.html