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  • Render 2D charts using OpenGL/VTK
  • Scalable to large data sets
  • Simple, flexible API
  • Enable server side rendering of charts with VTK compositing
  • Proper handling of IEEE Not-A-Number (NaN) values in plots of both experimental and simulation data.

Open Questions

  • Alternate backend to produce publication quality output?
  • Possibility to extend the API to 3D charts in the future?
  • Maybe real-time charting? (just-in-time visualization of data sets)

Further Details on API

Please see VTK/2DAPI and VTK/Charts/ChartAPI for details about the 2D API and chart API, along with proposed class relationships. VTK/Marks discusses options for a protovis-like API in VTK, that would build on the 2D API. The VTK/CanvasAPI details the canvas API that both the chart and marks API build on.

Chart Types

  • XY plot
  • Scatter
  • Bar chart
  • Histogram
  • Stack chart
  • Pie chart
  • Parallel axes
  • Tree map
  • Bubble chart

Existing Applications/Libraries

Below is a summary of different libraries or applications that produce 2D charts and plots. Those listed either provide both screen and publication quality rendering, or just screen rendering.

Optimized for Screen Rendering

Multiple Backends (Publication Quality)