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Often as a result of several simulations which are themselves intensive a huge amount of information i.e., points/line/plane depending to the subject of investigation are available. Although there are extensive list of multivariate analysis and data-mining techniques to summarize the results however I am often amazed by a simple visualization giving the most of the information in one shot.
Being familiar with some techniques in visualization e.g., application of OpenGL etc I would like to ask: 1- Is there any software/technique/framework/etc providing ability to visualize several million particles (points/lines/...)?
2- What is the most favorite application in the community of statistics? I'm not fan of R! What else?

Note:
Let consider 3D data to be visualized interactively, so rotation and selection (slicing) being available realtime.

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    $\begingroup$ (1) What are you a fan of? (2) How many dimensions do your "points/lines/..." have? $\endgroup$
    – whuber ♦
    Commented Oct 17, 2011 at 13:38
  • $\begingroup$ Python is my favorite programming language even having less comprehensive statistical packages compared to R. The question was updated with dimension info. $\endgroup$
    – Developer
    Commented Oct 18, 2011 at 10:56

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ParaView and VisIt are two tools designed for such uses, visualizing large and high dimensional scientific data sets with interactive slicing and manipulation.

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