63

size(400,100);
background(255,0,100);
float offset = 50;
float scaleVal = 30.0;
float angleInc = PI/56.0;
float angle =0.0;
beginShape(TRIANGLE_STRIP);
for(int x = 4; x <= width+5; x += 5){
float y = sin(angle) * scaleVal;
if((x % 2) == 0){
vertex(x,offset+y);
}else{
vertex(x,offset -y);
}
angle += angleInc;
}
endShape();