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It draws graphs and charts using the HTML5 canvas tag, now available in mostly all modern browsers.
Here are some key features of "RGraph":
Supported graphs:
· Bar chart
· Bi-polar chart
· Donut chart
· Funnel chart
· Gantt chart
· Gauge chart
· Horizontal Bar chart
· Horizontal Progress bar
· LED grid
· Line chart
· Meter
· Odometer
· Pie chart
· Rose chart
· Radial scatter chart
· Scatter chart
· Thermometer chart
· Traditional radar chart
· Vertical Progress bar
General features:
· Annotating graphs
· Combining charts
· Integrating RGraph with external libraries (ModalDialog)
· Animating graphs
· A basic example
· Available CSS classes
· About canvas color definitions
· About context menus
· Setting the width and height of a graph
· The RGraph.SetConfig() function
· Examples of keys
· Updating graphs dynamically
· Retrieving a PNG of the graph
· The DOMContentLoaded event
· Custom RGraph events
· Adjusting graphs interactively
· Using tooltips
· Resizing graphs
· Microsoft Internet Explorer support
· Asynchronous processing
· Zooming the graph
Requirements:
· JavaScript enabled on client side
· HTML 5 enabled browser
What's New in This Release: [ read full changelog ]
· The RGraph.DrawXAxis() and RGraph.DrawYAxis() functions now support an axis.linewidth option
· Added range inputs (sliders) to the 3D example. For best results use Chrome or Safari to view the page: http://www.rgraph.net/docs/howto-3d-effect.html
· Added the Contract effect which is the opposite of the Expand effect
· Added chart.bevel to the HProgress chart
· You can now turn the bounce effect off in the Expand() effect
· The Line chart chart.backdrop option now supports splines
· The minify PHP script has been removed - the jsmin C program should be used instead.
· The Radar chart default for chart.axes.color has changed from black to rgba(0,0,0,0)
· The Radar chart default for chart.background.circles.poly has changed to true
· The Radar chart can now have a Trace effect
· Added ability to set the density and the color of the Rose chart background concentric circles
· Added chart.bevel to the VProgress bar

Via: RGraph 2012-12-31-stable / 2013-01-13-beta






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