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Index › Programming Questions & Help › Syntax Questions › Sequential loading

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Sequential loading (Read 609 times)

badiou

Sequential loading
Mar 20^th, 2007, 10:46am

Hello !

I just began Proce55ing and I try several exercices. The example Sequential (http://processing.org/learning/examples/sequential.html) makes a loop with 12 pictures.
However, I try to do that with 3000 pictures with following naming : 0001, 0002....

That doesn't work. Here's my code, many thanks !

int numFrames = 3000; // The number of frames in the animation
int frame = 0;
PImage[] images = new PImage[numFrames];

void setup()
{
size(800, 600);
frameRate(30);

for(int i=0; i<numFrames; i++) {
String imageName = "00"+ i + ".jpg";
images[i] = loadImage(imageName);
}
}

void draw()
{
frame = (frame+1)%numFrames; // Use % to cycle through frames
image(images[frame], 0, 0);
}

JohnG

Re: Sequential loading
Reply #1 - Mar 20^th, 2007, 11:49am

I think the problem is that when your number is less than 10 it's just used to mean (e.g.) "1" not "01", what you need to use is the Number Format functions http://processing.org/reference/nf_.html and related.

So you'd use something like:
Code:

String imageName = nf(i,4) + ".jpg";

However, loading 3000 images in setup will kill your sketch, you'll run out of memory a long time before you've finished loading them all.

I'd suggest putting the images into a .mov movie (either with an external program, or with a different sketch that uses the MovieMaker library) and using that.

badiou YaBB Newbies Offline Posts: 8	Re: Sequential loading Reply #2 - Mar 20^th, 2007, 8:43pm ok... Many thanks for your answer. The formating function will help me ! SO I'll try in a different way...

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