Monks, I humbly approach thee with a non-perl question, thus marked OT - Off Topic: How to choose a javascript plotting framework?.

The criteria are as follows:

• Plot support: Be able to render line, pie and bar charts.
• License: Preferably free and open source.
• Cost: Preferably gratis or low-cost.
• Technology: Preferably pure javascript (not rely on Flash or similar).
• Multi browser support: Preferably a framework that works with most common browsers (e.g. Firefox 2 & 3, Internet Explorer 7 & 8, Safari, Google Chrome, Opera).
• Extensibility: Possible to extend or override functionality.
• Off line capable: Do not require internet access.

The frameworks evaluated (with shortcomings) to date are:

• YUI Charts: Fails on pure JS criteria (uses Flash).
• Protovis: Fails on Multi browser support (does not support IE).
• DyGraphs: Fails on Multi browser support (relies on html5 canvas element which is unsupported in IE prior to version 9), line chart only.
• HighCharts: Fails on license (commercial, proprietary), otherwise very rich in features.
• FusionCharts Free: Fails on pure JS criteria (uses Flash)
• Raphael Vector Graphics: Fails on (out of the box) chart support.

I seek the advise from the wider Monk crowd on options and possibilities I may have missed out on. Thank you.

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