GLE (Graphics Layout Engine) is a graphics scripting language designed for creating publication quality figures (e.g., a chart, plot, graph, or diagram). GLE supports various chart types (including function plot, histogram, bar chart, scatter plot, contour plot, color map, and surface plot) through a simple but flexible set of graphing commands. More complex output can be created by relying on GLE's scripting language, which is full featured with subroutines, variables, and logic control. GLE relies on LaTeX for text output and supports mathematical formulae in graphs and figures.
yEd is a powerful diagram editor which can be used to quickly create diagrams manually or import external data for analysis and auto-magically arrange even large data sets by just pressing a button. You can use yEd to quickly create flow charts, BPMN and UML diagrams, organization charts, mind maps, Entity Relationship diagrams, and many other kinds of diagrams, graphs, and networks. Choose from a wide range of highly sophisticated layout algorithms to automatically arrange diagrams in no time. An intuitive and visually appealing user interface makes creating diagrams fun. Once a diagram has been created, it's easy to save, print, or export it to popular formats like PDF, SWF, EMF, SVG, JPEG, GIF, PNG, or HTML image maps.
Self-Adjusting Top Tree Implementation maintains a forest that changes over time through edge insertions and deletions. This implementation focuses on the simplified Top Tree interface, which allows you to solve a number of interesting graph problems like finding common ancestors, the heaviest edge, maintaining the diameter, center, or median and other (mostly network flow) problems. Using Top Tree interfaces, all outline problems can be solved in a clean declarative way. This implementation uses adapting ST-trees as the underlying data structure, achieving O(log n) time per expose(v,w) operation. There is also a demo that shows an easy way to integrate the toptree library and the host application.