in reply to GDGraph for many data points?

I havn't tried that many data points on a Tk or Gtk2 canvas, but I will guess that it will start to bog down, unless you break the datapoints into smaller sets, of say 1000 points, then graph them as separate bezier curve segments. See Tk Realtime data aquisition if you are interested. You also should look at PDL, but I have no idea how well that works on win32, especially getting all the extra graphics output modules compiled right. The PDL maillist is full of guys that plot millions of points for space exploration, so you might want to look at it, and join in.
I'm not really a human, but I play one on earth My Petition to the Great Cosmic Conciousness

Replies are listed 'Best First'.
Re^2: GDGraph for many data points?
by syphilis (Archbishop) on Feb 17, 2009 at 13:11 UTC
    You also should look at PDL, but I have no idea how well that works on win32, especially getting all the extra graphics output modules compiled right.

    I can provide some details in that regard. The PGPLOT and GD graphics capabilities are certainly available, and come with the PDL ppm package available from the Uwinnipeg repository.

    OpenGL access is also available to PDL via PDL::Graphics::OpenGL::Perl::OpenGL. It builds fine for me on Win32, though it's still in the development stage. I don't personally use any of this stuff, so I don't know what sort of milage is provided. All I know is that 'dmake test' (or 'nmake test', as the case may be) works fine.

    Cheers,
    Rob
[reply]

In Section Seekers of Perl Wisdom