graphic-processing-site-examples-Basics-Structure-Functions-Functions.pde / pde
Functions. The drawTarget() function makes it easy to draw many distinct targets. Each call to drawTarget() specifies the position, size, and number of rings for each target.
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);
}
}
(C) Æliens 20/2/2008
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