The yFiles Layout Algorithms for Cytoscape app brings the layout algorithms of the renowned yFiles diagramming libraries to Cytoscape!
Now one click is all you need to arrange your Cytoscape networks in a clear and concise way with the yFiles layout algorithms and edge routing algorithms at your disposal.
The yFiles diagramming libraries are world-class software components for arranging and visualizing graph structures. They come with a suite of highly sophisticated and highly customizable layout algorithms.
Use of the yFiles Layout Algorithms for Cytoscape app is subject to this Software License Agreement.
Download the app from the Cytoscape app store!
The following major yFiles layout algorithms and edge routing algorithms are available with the app:
The Circular layout algorithm portraits interconnected ring and star topologies. This algorithm produces layouts that emphasize group and tree structures within a network. It creates node partitions by analyzing the connectivity structure of the network and arranges the partitions as separate circles or disks.
The Hierarchic layout algorithm portraits the precedence relation of directed graphs. Use this algorithm to highlight the main direction or flow within a directed graph. Cyclic dependencies of nodes will be automatically detected and removed. Nodes will be placed in hierarchically arranged layers. Additionally, the ordering of nodes within each layer is chosen in such a way that the number of edge crossings is small.
Hierarchic layout (for) selected nodes is a variant of the classic hierarchic layout described above. Compared to the classic hierarchic layout which computes an all-new, fresh graph layout each time it is invoked, this variant will rearrange the sub-graph induced by selected nodes while the remainder of the graph is not, or only slightly, changed. This technique makes it possible to maintain the user's so-called "mental map" over a course of subsequent graph layout calculations.
The Organic layout algorithm is a multi-purpose layout style for undirected graphs. The algorithm is based on the force-directed layout paradigm. When arranging a graph, nodes are considered to be physical objects with mutually repulsive forces, like protons or electrons. The connections between nodes also follow the physical analogy and are considered to be metal springs attached to pairs of nodes. These springs produce repulsive or attractive forces between their endpoints if they are too short or too long. The algorithm simulates these physical forces and rearranges the positions of the nodes in such a way that the sum of the forces emitted by the nodes and the edges reaches a (local) minimum.
The Orthogonal layout algorithm is a multi-purpose layout style for undirected graphs. The algorithm is well suited for medium sized sparse graphs. It produces compact drawings with no node overlaps, few crossings, and few bends. All edges will be routed in an orthogonal style, i.e. only vertical and horizontal line segments will be used.
The organic edge routing algorithm routes edges organically to ensure that edges do not overlap nodes and keep a certain minimal distance between them. It is especially well-suited for non-orthogonal, organic, or cyclic layout styles. The algorithm is based on a force-directed layout paradigm. Nodes act as repulsive forces on edges in order to guarantee a certain minimal distance between nodes and edges. Edges themselves tend to contract themselves. Using simulated annealing this leads to edge layouts, which are calculated for each edge separately.
The yFiles diagramming software components enable you to add high-quality diagramming functionality to your own software applications: turn your data into clear diagrams with the help of unequaled automatic diagram layout, use rich visualizations for your diagram elements, and give your users an intuitive interface for smooth interaction.
yFiles is available for a wide range of platforms and technologies: from web applications to cross-platform Java(FX) to the Microsoft .NET environment.
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