Cytoscape WikiCytoscape version 2.2 has a set of editors that enable the user to build and modify networks interactively by dragging and dropping nodes and edges from a palette onto the main network view window. The palette contains a set of shapes (for nodes) and arrows (for edges). The shapes on the palette are defined by the current Visual Style, with Node Shape and Node Color mapping into the shape and color of a node, and Edge Target Arrow mapping into the target arrow of an edge.
In Cytoscape version 2.3, the set of classes for the CytoscapeEditor is will be extensible by both developers and end users. End users will be able to extend the editor by defining a new visual style in which Node Shape, Node Color, and Edge Target Arrow are associated with a controlling attribute, defaulting to NODE_TYPE and EDGE_TYPE, respectively. Developers will be able to extend the editor framework by plugging in semantic callback methods that are invoked when editor operations, such as adding and deleting Nodes and Edges, are performed.