Hi everybody.
I cannot find a good way to draw a "tape" i.e. a thick line (stroke(30)) composed by consecutive segments that run randomly through the screen like a chain.

I want to paint each segment in a different color and surround the whole tape by a thick black perimeter. The tape begins and ends outside the screen, so it is not important if the black perimeter is not perfect at the tape extremes.

I wrote a version using rect() instead of line() but I'm searching for something more "elegant".

Any snippet or example to study?
Thx in advance,
Apok

maybe he wants it to look more dynamic, using rects would probably be a problem then. Maybe you can use a quadstrip. Although im not sure if you can color the segments different

good idea, maybe he can just add a texture to the quadstrip.

see this for help:
http://processing.org/discourse/yabb2/?board=OpenGL%3Baction=display%3Bnum=1206567685

Thank you for your quick reply!

I send you a snippet to show what I mean:

Code:

colorMode(HSB);
strokeCap(BEVEL);
size(170,170);
background(255);
smooth();

// tape
noStroke();
fill(0,255,255);
quad(0,50,60,50,80,30,0,30);
fill(25,255,255);
quad(60,50,80,30,130,50,110,70);
fill(50,255,255);
quad(130,50,110,70,180,140,200,120);

// border
stroke(0);
strokeWeight(6);
noFill();
beginShape();
vertex(0,50);
vertex(60,50);
vertex(110,70);
vertex(180,140);
endShape();
beginShape();
vertex(0,30);
vertex(80,30);
vertex(130,50);
vertex(200,120);
endShape();
 

Up to now I can draw rectangles to simulate the thick line or to use quads (the 3 zones respectively red, orange and yellow); later I draw the black border.
This is "expensive" and not so elegant.

I would prefere to find a way to draw a thick 30pt chain of lines (each segment with its own color)  on a thicker (40pt) black "shadow": this superimpose leaves the two lateral borders. This version is definitely easier to calculate  and result is more pleasant.
I tried this to change the color while drawing each segment but it doesn't work:

Code:

noFill();
beginShape();
stroke(180,255,255);
vertex(0,50);
vertex(60,50);
stroke(0,255,255);
vertex(110,70);
stroke(90,255,255);
vertex(180,140);
endShape(); 

Any idea?
Thx Apok