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I've looked at Microsoft GLEE (non-commerical use) and other libraries for drawing graphs, but I need a good commercial use graph API to show complex routes through the Internet.
I need to be able to show a large number of nodes and vertexes. Any Ideas?
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Bar charts are one of the most common data visualizations. You can use them to quickly compare data across categories, highlight differences, show trends and outliers, and reveal historical highs and lows at a glance. Bar charts are especially effective when you have data that can be split into multiple categories.
Avoid using pattern lines or fills. Use border only for highlights. Only use column charts to show trends if there are a reasonably-low number of data points (less than 20) and if every data point has a clearly-visible value.
Pies and doughnuts fail because: Quantity is represented by slices; humans aren't particularly good at estimating quantity from angles, which is the skill needed. Matching the labels and the slices can be hard work. Small percentages (which might be important) are tricky to show.
A pie chart is one of the most popular and easiest ways of representing figures graphically. Such diagrams are easy to read and understand because it is clearly visible how parts relate to the whole. Pie charts are ideal for promptly letting you grasp the idea of the proportions of the data segments.
The Graphviz resources page lists a project, QuickGraph, which may solve your problem.
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