Microsoft Automatic Graph Layout: Difference between revisions

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{{Short description|Software library}}

; Related{{Infobox software :

| name = Microsoft Automatic Graph Layout (MSAGL)

| author = Lev Nachmanson, Sergey Pupyrev, Tim Dwyer, Ted Hart, Roman Prutkin

| developer = [[Microsoft Research]]

| released = {{Start date and age|2015|02|26}}

| latest release version = v1.1

| latest release date = {{Start date and age|2022|01|28}}

| repo = {{URL|https://github.com/Microsoft/automatic-graph-layout}}

| programming language = [[C Sharp (programming language)|C#]]

| operating system = [[Microsoft Windows]]

| platform = [[.NET Framework]]

| genre = [[Software framework]]

| license = [[MIT License]]

| website = {{URL|http://research.microsoft.com/en-us/projects/msagl/}}

}}

'''Microsoft Automatic Graph Layout''' (MSAGL) is a [[.NET Framework|.NET]] library for automatic [[graph layout]].

It was created by [[Lev Nachmanson]] at [[Microsoft Research]].<ref>{{cite [httpweb |title=Microsoft Automatic Graph Layout |url=https://rise4funwww.microsoft.com/aglen-us/research/project/microsoft-automatic-graph-layout/ Try|website=Microsoft itResearch}}</ref> in your browser!]

Earlier versions carried the name ''GLEE'' ('''Graph Layout Execution Engine''').<ref>{{cite web |title=Visualize Custom Graph with MS Graph Layout Engine |url=https://www.syncfusion.com/blogs/post/visualize-custom-graph-ms-graph-layout-engine.aspx |website=Syncfusion Blogs |date=14 August 2018}}</ref>

== Contents ==

The MSAGL software supplies threefour reusable codeprogramming libraries:

* {{mono|Microsoft.MSAGL.dll}}, a device-independent [[graph layout]] engine;

The MSAGL software supplies three reusable code libraries:

* <tt>{{mono|Microsoft.MSAGL.Drawing.dll</tt>}}, a device-independent implementation of graphs as [[graphical user interface objectsobject]]s, with all kinds of graphical attributes, and support for interface events such as mouse actions;

* <tt>{{mono|Microsoft.MSAGL.GraphViewerGDI.dll</tt>}}, a device[[Windows.Forms]]-independentbased graph viewer [[graphGUI layoutwidget|control]] engine;.

* <tt>{{mono|Microsoft.MSAGL.GraphViewerGDIWpfGraphControl.dll</tt>}}, a WPF ([[Windows.Forms Presentation Foundation]]-) based graph viewer [[GUI widget|control]].

* <tt>Microsoft.MSAGL.Drawing.dll</tt>, 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;

* <tt>Microsoft.MSAGL.GraphViewerGDI.dll</tt>, a [[Windows.Forms]]-based graph viewer [[GUI widget|control]].

A trivial application is supplied to demonstrate the viewer.

== Features ==

MSAGL performs layout based on "principles of the [[Sugiyama scheme]];<ref>{{cite web|url=https://www.microsoft.com/en-us/research/publication/notes-on-an-implementation-of-sugiyamas-scheme/|title = Notes on an Implementation of Sugiyama's Scheme|date = June 2006|last1 = Nachmanson|first1 = Lev| website=[[Microsoft]] }}</ref> it produces so called layered, or hierarchical, layouts" (according to the MSAGL home page). A modified [[Coffman–Graham algorithm|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 {{US Patent |7932907}}.

MSAGL performs layout based on ''principles of the [[Sugiyama scheme]]; it produces so called layered, or hierarchical, layouts'' (according to the MSAGL home page).

At some time, it did not support a wide range of different layout algorithms, unlike, for instance, [[GraphViz]] or [[GUESS Graph Exploration System|GUESS]].

It does not appear to support [[incremental layout]].<ref>{{cite web |title=Microsoft Automatic Graph Layout {{!}} Semantic Scholar |url=https://www.semanticscholar.org/topic/Microsoft-Automatic-Graph-Layout/2926312 |website=www.semanticscholar.org |language=en}}</ref>

It does not appear to support [[incremental layout]].

== Availability and licensing ==

MSAGL is distributed under [[MIT License]] as open source at [[GitHub]].<ref>{{Cite web|url=https://github.com/Microsoft/automatic-graph-layout.git|title = Microsoft Automatic Graph Layout| website=[[GitHub]] |date = 17 October 2021}}</ref>

MSAGL is distributed in a binary form only. A [http://www.windowsmarketplace.com/details.aspx?view=info&itemid=6002737 commercial license] has to be bought.

== See also ==

{{Portal|Free and open-source software}}

* [[graph layout]]

* [[Graph algorithms]]

; Related software :

* [[Graphviz]], an open-source graph drawing system from [[AT&T]]

== References ==

{{Reflist}}

== External links ==

* [http://rise4funresearch.microsoft.com/aglen-us/projects/msagl/ try MSAGL in yourhome browserpage]

* [http://research.microsoftrise4fun.com/en-us/projects/msaglagl/ the MSAGL homein pagea browser] {{dead link|date=August 2025}}

* [https://patents.google.com/patent/US7932907 US Patent 7932907]

{{Graph Analysis Software}}

{{Microsoft FOSS}}

{{Microsoft Research}}

[[Category:WindowsGraph drawing software]]

[[Category:Free and open-source software]]

[[Category:Microsoft free software|Automatic Graph Layout]]

[[Category:Microsoft Research]]

[[Category:GraphProgramming drawingtools for Windows]]

[[Category:Software using the MIT license]]

[[Category:Windows-only free software]]