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I am looking for a charts library to be displayed on a website. I will use intensively this library (for area, line and bar charts mainly), so I prefer to secure my choice before starting implementing. The list of website chart libraries that I have initially considered are: Plotkit Emprise JS Charts Sparkline Protochart gRaphael Bluff YUI Charts : However after some researches on this forum and investigations on the web, I have reduced my candidate list to these two libraries: Flot jQuery plugin Google Visualization Which one do you advise me to use and why (if you have worked with one or two of them, please tell me your feedback)? How do they compare one to each other regarding ease of use, performance and features? Thank you EDIT: Based-Flash Chart libraries were not eligible with my constraints Source: Tips4all

I'm currently looking for a Swing component that will allow me to draw about 5000 points per sequence for at least 3 sequences with an update frequency greater or equal to 100 Hz (and preferably pretty looks). A clean API is definitely a plus and another plus is the possibility of having two (or more) vertical axes. The targets are java 6 and 7. Solutions which are not 100% java should support at least Windows 7 and Mac OS X Lion. Commercial and F/OSS solutions equally welcome. Thanks in advance

I'm relatively new to flex, and I'm developing a web app that needs to plot relatively large data sets (e.g. 20,000 pts divided among 8 separate curves) in a line chart. Flex built-in chart components render too slowly. Two part question: Would javascript line chart render faster than Flex line chart? If so, is it possible to use a javascript-based charting solution instead of flex component, within the Flex application? Or, is this an impractical (or crazy) idea? Anyone doing this out there? How simple or complex is it? I'm hoping it's relatively easy to integrate a pre-developed solution like EST JS, HighCharts, etc. to simplify development.

I want to get an Excel chart and convert it to image. Is there any way to do that using Java, JXL, POI or any other Java library?