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Index › Programming Questions & Help › Syntax Questions › Simple question about functions
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Simple question about functions (Read 323 times)
allovernetwork
Simple question about functions
Jul 6th, 2008, 10:54pm  
Hey I'm new to both programming and Processing and was going through the examples in the 'learning' section and had a question I was hoping someone could answer:

During the learning examples, the two examples involving functions (entitled 'functions', and 'recursion') use commands that aren't listed anywhere in the reference section, these being drawCircle and drawTarget.

Is there part of the reference page I'm just not seeing or what?

Thanks
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JohnG
Re: Simple question about functions
Reply #1 - Jul 6th, 2008, 11:25pm  
The functions are defined on those learning pages, immediately after they're used...

Quote:
void setup()
{
 size(200, 200);
 background(51);
 noStroke();
 smooth();
 noLoop();
}

void draw()
{
 drawTarget(68, 34, 200, 10);
 drawTarget(152, 16, 100, 3);
 drawTarget(100, 144, 80, 5);
}

void drawTarget(int xloc, int yloc, int size, int num)
{
 float grayvalues = 255/num;
 float steps = size/num;
 for(int i=0; i<num; i++) {
   fill(i*grayvalues);
   ellipse(xloc, yloc, size-i*steps, size-i*steps);
 }
}
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