Figure Asymptote generalities -- 177

Posted on 2011-01-01 Edited on 2025-06-30 In EN , Tech , Programming , Asymptote , Examples 2D , Generalities

An Asymptote code and the generated picture generalities--177.

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Figure generalities 177 Generated with Asymptote

Show generalities/fig1780.asy on Github.
Generated with Asymptote 3.00-0.
Categories : Examples 2D | Generalities
Tags : #Basis | #Geometry | #Intersection

size(6cm,0);

import math;

pair A=(0,0), B=(1,.5), C=(.25,1);

pair project(pair pt, pair A, pair B)
  {
    return extension(pt,pt-dir(90+degrees(A-B,false)),A,B);
  }

pair ocenter(pair A, pair B, pair C)
  {
    return extension(A, project(A,B,C), B, project(B,A,C));
  }

draw(A--B--C--cycle);

pair orth=ocenter(A,B,C);
pair Ap=project(A,B,C);
pair Bp=project(B,A,C);
pair Cp=project(C,A,B);

dot(orth, red);
dot(Ap^^Bp^^Cp);
drawline(A, orth, dotted);
drawline(B, orth, dotted);
drawline(C, orth, dotted);