On Thu, Aug 11, 2011 at 11:34 AM, David Just <just.da...@mayo.edu> wrote:
> The images are usually ~ 256x256 greyscale. They vary a bit in size, but
> are not large by any shape or form.
>
> It seems interpolation is happening on each scroll. This is evident by
> changing the interpolation scheme from linear to spline36.
>
> Linear takes ~0.25 seconds to re-draw the new image
> spline36 takes ~.36 seconds to re-draw the new image
>
> Each “pile” of images ranges in size from 10-150 so scrolling from top to
> bottom of 150 images can take upwards of 30 seconds!!!!!!
> (This is on a macbook pro with a 2.53 ghz core 2 duo processor. )
>
> I’m also trying to figure out how to change the size of the canvas that I
> get since it’s overly large and seems to be stopping me from reducing the
> size of my GTK window.
>
> Thanks,
> Dave.
>
>
>
Are all of the images in a "pile" the same size? If they are different
sizes as you scroll through them, then that is what is causing the problem.
I would suggest sampling all of the images to a common resolution and
scrolling through that array of images..
Ben Root
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