Tim,
I was thinking of letting Google Desktop do it for you. 2 ideas:
1) Do you know the paths to the images ahead of time? If you do, you
could just put them into a DIV tag, and hide all but the active one:
<view width="500" height="500">
<div name="animationDiv" width="500" height="500">
<img name="frame1" src="someFolder/image1.png" opacity="255" />
<img name="frame2" src="someFolder/image2.png" opacity="0" />
<img name="frame3" src="someFolder/image3.png" opacity="0" />
...
</div>
</view>
...which makes Google Desktop load them for you, without any effort on
your part. Then you could write a loop that successively fades in
each item in sequence, and fades out the previous one. I can show you
that code if you like.
2) If you DON'T know the images ahead of time, you can write some code
which generates the "img" tags above -- e.g.,
var frame1string = "<img src='somefolder\image1.png'>";
var frame2string = "<img src='somefolder\image2.png'>";
var frame3string = "<img src='somefolder\image3.png'>";
and then use appendElement() to load them into some container, such as
my "animationDiv" tag above:
var frame1pointer = animationDiv.appendElement (frame1string);
var frame2pointer = animationDiv.appendElement (frame2string);
var frame3pointer = animationDiv.appendElement (frame3string);
...which, again, happens as quickly as Google Desktop can make it
happen (in my experience). Then you're in the same situation you were
in for #1, and you can write a loop which successively animates those
loaded images.
Does this make any sense at all?
ron
On Fri, Jan 22, 2010 at 5:56 PM, Timmaah! <[email protected]> wrote:
> Hi Ron,
>
> Thanks for your reply. The length of the animations isn't such a big
> problem - they are around 5-20 frames each, and they animate quite
> slowly (approx. 1 frame per second). The animations are guides showing
> how to write complex symbols.
>
> So, no - the problem isn't with the quantity of images that need to be
> loaded at any one time. The problem is with this part:
>
>> - load a batch of images (say, a few hundred) into an array
>
> How would you go about doing this part? Are you suggesting multiple
> simultaneous XMLHttpRequests? Because I've seen it stated by several
> sources that no more than 2 such requests should be carried out at any
> one time. How would you load a batch of images into your gadget? I've
> now approached this problem with several different methods (detailed
> above), and have not yet found a workable solution.
>
> Any help you'd be able to give me with regards to the loading in of
> the images would be greatly appreciated.
>
> Thanks a lot,
>
> - Tim
>
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