Calling array in function

on frame 1 of root:
//declare and fill array "mcPopups" with movie clip instance
names
var mcPopups = [ "mcAlta1", "mcAlta2", "mcAlta3", "mcAlta4",
"mcAlta5" ];
//declare function which goes to hidden label in all movie
clips from array "mcPopups"
function turnOff() {
_root.mcPopups.gotoAndStop("hidden");
then on the frame for a button in my movie clip mcAlta1 I
have the code:
stop();
//call function "turnOff();"
close_btn.onRelease = function() {
_root.turnOff();
Am I doing something wrong here as it doesn't work ie the
movie clips should all go to "hidden" when I click my "close_btn"

>> //declare and fill array "mcPopups" with movie clip
instance names
var mcPopups = [ "mcAlta1", "mcAlta2", "mcAlta3", "mcAlta4",
"mcAlta5" ];
//declare function which goes to hidden label in all movie
clips from array
"mcPopups"
function turnOff() {
_root.mcPopups.gotoAndStop("hidden");
First, you are putting strings in the array, and you probably
want your
actual instances. So change the first part to:
var mcPopups = [mcAlta1, mcAlta2, mcAlta3, mcAlta4, mcAlta5];
Next, you need to actually iterate through the array, one
item at a time.
The array contains MC references - which you can tell to
gotoAndStop - an
array does not have a gotoAndStop method so
array.gotoAndStop() makes no
sense. Change your function to:
function turnOff(){
for(var i = 0; i < mcPopups.length; i++){
mcPopups
.gotoAndStop("hidden");
Lastly, it's recommended to not use _root references as root
can change.
Better to do things like this._parent if you need to, but in
your code just
removing all _root should be fine.
Dave -
Head Developer
http://www.blurredistinction.com
Adobe Community Expert
http://www.adobe.com/communities/experts/

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Calling a library function node much faster than labview code?

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Attachments:
MultiTauAutocorrelate.vi ‏627 KB

Hi,
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For a fair comparation, posting the code in this forum was a good idea. I'm sure together we can get it to 115% or less of the C variant. (15/115 is just a guess, btw)
I'm still using LV7.1 for client compatibility, so I'll look at the code later.
Regards,
Wiebe.
"dakeddie" <[email protected]> wrote in message news:[email protected]...
Hi,  I wrote a labview routine to perform a multiple tau autocorrelation on a large array of integers.  A multi tau autocorrelation is a way to reduce the computation time of the correlation but at the expense of resolution.  You can taylor the multitau correlation to give you good resolution where you need it.  For instance, I require good resolution near the middle (the peak) of the correlation, so I do a linear autocorrelation for the first 64 channels from the peak, then I skip every second channel for the next 32, then skip every 4th channel for 32 more, then skip every 8th for 32 channels... etc. Originally, I wrote my own multitau calculation, but it took several hours to perform for just 1024 channels of the correlation of around 2million points of data.  I need to actually do the the correlation on probably 2 billion or more points of data, which would take days.  So then I tried using labview's AutoCorrelation.vi which calls a library function.  It could do a linear autocorrelation with 4 million points in less than a minute.  I figured that writing my code in C and calling it using a call library function node would be faster, but that much faster?Finally, I wrote some code that extracts the correlation data points that I would've got from my multitau code from the linear correlation function that I get from the AutoCorrelation.vi.  Clearly this is not optimal, since I spend time calculating all those channels of the correlation function just to throw them away in the end, but I need to do this because the final step of my procedure is to fit the correlation function to a theoretical one.  With say 2million points, the fit would take too long.  The interesting thing here is that simply extracting the 1024 point from the linear autocorrelation function takes a significant amount of time.  Is labview really that slow?So, my questions are...  if I rewrite my multitau autocorrelation function in C and call it using a call library function node, will it run that much faster?  Can I achieve the same efficiency if I use a formula node structure?  Why does it take so long just to extract 1024 points from an array?I've tried hiding indicators and this speeds things up a little bit, but not very much.I'll attach my code if you're interested in taking a look.  There is a switch on the front panel called 'MultiTau'... if in the off position, the code performs the linear autocorrelation with the AutoCorrelation.vi, if in the on position, it performs a multitau autocorrelation using the code I wrote.  Thanks for any help.
MultiTauAutocorrelate.vi:
http://forums.ni.com/attachments/ni/170/185730/1/MultiTauAutocorrelate.vi

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Kenchu1 wrote:
> Patrick B,
> exactly! Something like that is what im looking for. I
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> simple system right now with listeners and classes
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> dont know how to call a private function, i had to make
all the listening
> classes functions public - something id rather avoid.
Exactly how did your
> event broadcasting system work? Oh, and we're talking
AS3 btw.
>
> How do i call a function via a reference? (to the
function? To what?)
>
http://www.baynewmedia.com
Faster, easier, better...ActionScript development taken to
new heights.
Download the BNMAPI today. You'll wonder how you ever did
without it!
Available for ActionScript 2.0/3.0.

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Edited by: Suhas Saha on Jun 26, 2010 8:52 AM

Calling array in function

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