Figure Asymptote animations -- 004

Posted on 2011-01-01 Edited on 2025-06-30 In EN , Tech , Programming , Asymptote , Animation

An Asymptote code and the generated picture animations--004.

🔗This picture comes from the Asymptote gallery of topic animations

Show animations/fig0040.asy on Github.
Generated with Asymptote 3.00-0.
Categories : Animation
Tags : #Geometry | #Animation | #Triangle | #Circle | #Locus

import geometry;
import animate;
animation Anim;

size(12cm);

circle C=circle(origin, 1);
draw(C);
point A=point(C, 0), B, M;
guide locus;

for (real a=0.001; a < 360; a += 5) {
  save();
  B=angpoint(C,a);
  triangle t=triangle(origin, A, B);
  draw(t);
  draw(incircle(t), bp+0.8*blue);
  triangle intouch=intouch(t);
  draw(intouch, dot);
  M=intouch(t.AC);
  label("$N$", Label("$M$", 0.8*red), "$P$", intouch);
  dot(M, 0.8*red);
  locus=locus..M;
  draw(locus, bp+0.8*red);
  Anim.add();
  restore();
}

Anim.movie();