We closed this forum 18 June 2010. It has served us well since 2005 as the ALPHA forum did before it from 2002 to 2005. New discussions are ongoing at the new URL http://forum.processing.org. You'll need to sign up and get a new user account. We're sorry about that inconvenience, but we think it's better in the long run. The content on this forum will remain online.
Index › Programming Questions & Help › Syntax Questions › img.length cannot be resolved or is not a field
‹ Previous Topic | Next Topic ›
Page Index Toggle Pages: 1
img.length cannot be resolved or is not a field (Read 1372 times)
clankill3r
img.length cannot be resolved or is not a field
Jan 18th, 2010, 5:18am  
I got this function in a class, before i used:

//    for(int y = 0; y < img.height; y++){
//      for(int x = 0; x < img.width; x++){

which worked fine, now i changed to img.length but now i get the error img.length cannot be resolved or is not a field.
why's that?

Code:
    void calculate2d(PImage img, boolean[] ar){
    img.loadPixels();
    println(img.length);
    for(int i = 0; i < img.length; i++){
	  if(img.pixels[i] != -1){//als het niet wit is
	    ar[i] = true;
	}
    }
  }
Back to top
 
 
JR
Re: img.length cannot be resolved or is not a field
Reply #1 - Jan 18th, 2010, 5:23am  
An image does not have a length.

You could try:

for(int i = 0; i < img.pixels.length; i++){
Back to top
 
 
clankill3r
Re: img.length cannot be resolved or is not a field
Reply #2 - Jan 18th, 2010, 10:44am  
how could i forget.

thx
Back to top
 
 
Page Index Toggle Pages: 1
‹ Previous Topic | Next Topic ›