NetDiagram Programmer's Guide
TopologicalLayout Class
Remarks See Also

Applies topological ordering to the graph. This layout makes it easy to discern graph features such as overall flow direction, cycles and nested cycles.

Namespace: MindFusion.Graphs
Package: TopologicalLayout.js


JavaScript  Copy Code

// class
TopologicalLayout.prototype = {}


Topological ordering of graph nodes is one where link's origin node is placed before link's destination. TopologicalLayout arranges nodes in a row or a column (depending on the value of the direction property) in such a way that there are no backward links when the graph is acyclic. If the graph contains cycles, the algorithms selects ordering with as few backward links as possible.

Links that connect non-adjacent nodes are rendered as arcs. Links connecting adjacent nodes can be rendered either as arcs or as straight lines, depending on the bendAdjacentLinks property. The amplitude of link arcs is proportional to the distance between respective connected nodes. All forward links are rendered at one side of the nodes and all back links are rendered at the opposite side. Thus, all bent links follow the same rotation direction.


The following example applies TopologicalLayout to the diagram:

JavaScript  Copy Code
var layout = new MindFusion.Graphs.TopologicalLayout();
layout.direction = MindFusion.Graphs.LayoutDirection.LeftToRight;

 Inheritance Hierarchy

 See Also

TopologicalLayout Members
MindFusion.Graphs Namespace