Directed Graph Example

The following example shows a SWIG generated extension for the Tcl/Tk Netscape plugin. The interface is written in Tcl/Tk, but the underlying functionality has been implemented entirely in C. (Ok, the interface is a little lame, but this example was only cooked up in an afternoon).

Instructions

Left mouse button creates a node
Middle mouse button creates a link. Works as follows :
- Click on starting node
- Move mouse to end node
- Click middle mouse button again
Right mouse button will show which nodes are connected or the shortest path between two nodes (if selected).
The "More edges" button adds more edges to the graph using a transitive closure algorithm.