Microsoft Automatic Graph Layout

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Microsoft Automatic Graph Layout (MSAGL) is a .NET library for automatic graph layout. It was created by Lev Nachmanson at Microsoft Research.

Earlier versions carried the name GLEE (Graph Layout Execution Engine).

Contents[edit]

The MSAGL software supplies three programming libraries:

  • Microsoft.MSAGL.dll, a device-independent graph layout engine;
  • Microsoft.MSAGL.Drawing.dll, a device-independent implementation of graphs as graphical user interface objects, with all kinds of graphical attributes, and support for interface events such as mouse actions;
  • Microsoft.MSAGL.GraphViewerGDI.dll, a Windows.Forms-based graph viewer control.

A trivial application is supplied to demonstrate the viewer.

Features[edit]

MSAGL performs layout based on principles of the Sugiyama scheme; it produces so called layered, or hierarchical, layouts (according to the MSAGL home page). Modified Coffman-Graham scheduling algorithm is then used to find a layout that would fit in a given space. More detailed description of the algorithm can be found in U.S. Patent 7,932,907.

At some time, it did not support a wide range of different layout algorithms, unlike, for instance, GraphViz or GUESS.

It does not appear to support incremental layout.

Availability and licensing[edit]

MSAGL is distributed in a binary form only. A commercial license has to be bought, except for MSDN subscribers, who can download a copy and license key as part of their subscription.

See also[edit]

Related software 

External links[edit]