Another "How to do this in a Revlet?" thread

[BNig]

When doing a repeated resize of an image you might want to consider bugzilla
Report #8302.
It describes a funny problem in Revlets and stacks that leaks memory when an
image is repeatedly resized AND the image was from a JPEG image. No leak if
image was a png or if image is still referenced via filename (referenced
JPEGs dont leak)
regards
Bernd


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.
> 
> 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.
> 
> --
>   Richard Gaskin
> 
> 

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