On Oct 30, 2009, at 11:01 AM, Richard Gaskin wrote:
Jacque wrote:
Richard Gaskin wrote:
This is not only cool, but this type of zooming can be
instructionally
useful:
<http://learn.genetics.utah.edu/content/begin/cells/scale/>
Anyone here pull off something like that in Rev?
I haven't, but I don't think it would be hard. It's just a
high-resolution image that is continually scaled. I'd put a scrollbar
under the image, scripted to reset the scale of the image object, and
that should do it. If you want smooth scaling, you'd need to
continually
rescale in a loop, in very small increments, until the target scale
is
reached.
I'm attracted to the idea that it could be easy, but I think in
practice
it may be quite harder than it looks.
Pretty easy to do as a simple, medium-res example (but don't set the
image's resizeQuality to "Best", or it gets really slow):
Try my crude test from the message box:
go stack url "http://asay.byu.edu/testZoom.rev";
Can anyone improve on this? (A low standard, I know. :) )
For starters, it loads really fast so it's gotta be vector objects
rather than a large scaled bitmap image.
And given its size when you're zoomed in all the way, it would almost
certainly exceed Rev's 4095-pixel limit on image size (do I have that
limit correct?).
I think it would require some nifty scaling algorithms, and with Flash
doing this almost automatically and with us needing to do this in
script, I'm having a hard time figuring out how one could do that as
gracefully.
What about taking lots of snapshots of the image at different scales
and making it into a movie, then just using a slide to scrub through
the movie? Maybe that's cheating, but you work with what you've got.
Devin
Devin Asay
Humanities Technology and Research Support Center
Brigham Young University
_______________________________________________
use-revolution mailing list
[email protected]
Please visit this url to subscribe, unsubscribe and manage your subscription
preferences:
http://lists.runrev.com/mailman/listinfo/use-revolution
