[Plplot-general] Re: plplot_canvas_use_pixmap

[Thomas J. D. <to...@fi...>]

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Hi Joe,

     I can't quite remember why I took the use_pixmap functionality out.
I will look into it, and see if we can put it back in (I can't think of
any obvious reasons why not).  Thanks for your continued interest in the
new gcw/plplotcanvas driver.

Cheers,
Tom

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Quoth Joe Conway:

> Hi,
>
> I was using plplot 5.3.1 with plplotcanvas until a few days ago. In that
> configuration I found that I needed to use plplot_canvas_use_pixmap() --
> otherwise the memory footprint of my application would peak out at about
> 2 GB and rendering would be very slow. With plplot_canvas_use_pixmap()
> memory usage never exceeded about 45 MB and rendering was reasonably
> fast. (The plot is a 3d surface with 350 x 512 grid points -- it is a
> profile of a high quality laser beam, and the detail is desired by the
> optical scientists).
>
> With the release of plplot 5.5.0 I see that plplotcanvas is now directly
> incorporated. That was great news to me. However,
> plplot_canvas_use_pixmap() seems to have been removed. I found
> plplot_canvas_use_fast_rendering(), but my app is back to using ~815MB
> memory and rendering very slowly. Without
> plplot_canvas_use_fast_rendering() the situation is even worse -- about
> 1.6GB memory use.
>
> So my question -- is there any plan to replace
> plplot_canvas_use_pixmap()? Or am I just plain doing something wrong?
>
> Thanks for any answers or insights.
>
> Joe

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Thomas J. Duck <to...@fi...>

  Department of Physics and Atmospheric Science, Dalhousie University,
    Halifax, Nova Scotia, Canada, B3H 3J5.
  Tel: (902)494-1456 | Fax: (902)494-5191 | Lab: (902)494-3813
  Web: http://aolab.phys.dal.ca/~tomduck/
  Public key: http://pgp.mit.edu:11371/pks/lookup?op=get&search=0x17D965DB
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