Figure Asymptote tube -- 011

Posted on 2011-01-01 Edited on 2025-04-20 In Tech , Programming , Asymptote , Examples 3D , Tube.asy

An Asymptote code and the generated picture tube--011.

🔗This picture comes from the Asymptote gallery of topic tube

Figure tube 011 Generated with Asymptote

Show tube/fig0110.asy on Github.
Generated with Asymptote 3.00-0.
Categories : Examples 3D | Tube.asy
Tags : #Tube

import tube;
import graph3;
size(12cm,0);
currentprojection=orthographic(4,3,4);

real x(real t) {return sin(t);}
real y(real t) {return 0.5*sin(2*t);}

path g=graph(x,y,0,2pi,50,operator ..);
path3 p=path3(scale(5)*g);

pen pen(real t){
  return interp(red,blue,1-2*abs(t-0.5));
}

draw(tube(p,coloredpath(subpath(unitcircle,1,3),pen)));
draw(p);