Processing 1.0 - Processing Discourse - void draw ()

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Index › Programming Questions & Help › Syntax Questions › void draw () - must contain a method body

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void draw () - must contain a method body? (Read 526 times)

peta-clair

void draw () - must contain a method body?
Sep 27^th, 2007, 12:35am

Hi
When I play the following code, the statement ;
the declaration of the non-abstract and non-native method "void draw()" must contain a method body.

What does this mean>?
The code is below;

PImage polarfleece;
void setup (){
size (600,600);
loadImage("polarfleece.JPG");
image(polarfleece, 0, 0);
filter(GRAY);
filter(POSTERIZE, 2);

}

void draw ();
{
polarfleece.loadPixels ();
for (int x = 0; x< polarfleece.width; x++)
{
for (int y=0; y< polarfleece.height; y++)
{
int i = (y * polarfleece.width + x);
if (polarfleece.pixels [i] == color(0) ) {
ellipse (x,y,40,40) ;
}
else if (polarfleece.pixels [i] == color(1) ) {
}
}
}
}

Any help would be great, thanks

JohnG Ex Member	Re: void draw () - must contain a method bod Reply #1 - Sep 27^th, 2007, 12:58am You just need to remove the ; at the end of your "void draw();" line.

peta-clair YaBB Newbies Offline Posts: 16	Re: void draw () - must contain a method body? Reply #2 - Sep 27^th, 2007, 1:02am thanks... now image (polarfleece,0,0); is saying null pointer exception?

JohnG Ex Member	Re: void draw () - must contain a method bod Reply #3 - Sep 27^th, 2007, 1:11am in setup, loadImage("polarfleece.JPG"); needs to be polarfleece=loadImage("polarfleece.JPG");

peta-clair YaBB Newbies Offline Posts: 16	Re: void draw () - must contain a method body? Reply #4 - Sep 27^th, 2007, 1:13am Thanks for your help... i think i may finally be getting somewhere!

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