When comparing Raphael vs ZoomCharts, the Slant community recommends Raphael for most people. In the question“What are the best JavaScript libraries for creating visualisations of data as charts/graphs?” Raphael is ranked 6th while ZoomCharts is ranked 12th. The most important reason people chose Raphael is:
Because Raphael supports rendering VML + SVG, it is one of the few drawing libraries that is backwards compatible with older browsers that do not support canvas.
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Pros
Pro Works with older browsers
Because Raphael supports rendering VML + SVG, it is one of the few drawing libraries that is backwards compatible with older browsers that do not support canvas.
Pro Built in animations
Several built-in animations (such as ways of easing) are provided for you out of the box, but Raphael also allows cubic beziers for more complicated easing functions. Any drawing object property can be modified making it similar to css animations in jQuery.
Pro Every object is interactive with events
Everything that is drawn in Raphael is an object which means it is easy to manipulate any part of the rendered image after it is processed. It uses an event handler system for user inputs which makes it easy to learn for JavaScript developers used to event based libraries.
This style of handling objects makes Raphael a good fit for rendering interactive diagrams and charts that can also interact with other parts of the page.
Pro Easy creation of charts with extension
gRaphael is a Raphael extension to help you easily create graphs and charts.
Pro Charts-on-Charts
ZoomCharts patented technology called Charts-on-Charts, which allows to dynamically build multiple interactive charts inside one canvas object.
Pro Multi-touch
ZoomCharts is built for mobile devices. All native multi-touch gestures are built in. Data navigation and exploration is as native as it could ever be.
Pro Interactivity
All ZoomCharts products have high level of interactivity available.
Pro Speed & Performance
ZoomCharts are canvas based, as tested with default settings, more than 20 times faster as svg based competitor with same data and default settings. Video available on ZoomCharts youtube channel.
Pro Extensive documentation
Most of ZoomCharts customers do comment that ZoomCharts Documentation is one of the best that they have seen
Pro Fantastic Support
They responded to my issue/question really amazingly fast and that means I didn't have to halt my project development. Also the attitude was great.
Cons
Con Complicated, confusing documentation
The documentation is often not clear and lacks practical examples.
Con Can be difficult to get support
Online communities for Raphael are small and inactive compared to other drawing libraries, and many issues opened on github are never addressed.
Con Very expensive
