KLay Force is an implementation of the force-based layout approach where edges are regarded as springs pulling together the nodes they connect, while unconnected nodes are pushed apart from one another. The objective is to compute a state where this physical system reaches an equilibrium.

This page describes the available layout options as well as the general architecture of the algorithm.

Contents

• Layout Options
• Architecture
  • Graph Model
  • Algorithm

Downloads - KIELER Layout Algorithms

Layout Options

Architecture

The architecture basically consists of two chunks: the graph model and the actual implementation of the algorithm.

Graph Model

KLay Force uses a custom, lightweight graph model whose root is the FGraph class. FNode instances are connected through FEdge instances that, to be routed properly, can have FBendpoint instances. Edges and nodes can have a number of FLabel instances. Nodes, labels, and bend points are considered FParticles since they exert forces on each other. The following is a class diagram of the basic graph model:

Algorithm