cube.flx

/* -*-ePiX-*- */
#include "epix.h"
using namespace ePiX;

int main(int argc, char* argv[])
{
  if (argc == 3)
    {
      char* arg;
      double temp1, temp2;
      temp1=strtod(argv[1], &arg);
      temp2=strtod(argv[2], &arg);

      tix=temp1/temp2;
    }

  bounding_box(P(-4,-4),P(4,4));
  unitlength("1in");
  picture(P(5,5));

  begin();
  revolutions();

  grid(1,1);

  P ctr=P(3.25,-3.25); // "clock" center
  bold();
  ellipse(ctr, P(0.5,0.5)); // clock face

  line(ctr,ctr+polar(0.4,tix)); // hands
  label_angle(tix-0.25);
  label(ctr+polar(0.6,tix), "$\\theta$");

  plain();

  viewpoint(sph(10,0,0));
  camera.rotate_sea(0.05);
  camera.rotate_sky(tix);

  rgb(1,0.4,0.4);

  rect(P(-2,-2,-2), P(2,2,-2));
  rect(P(-2,-2, 2), P(2,2, 2));

  rect(P(-2,-2,-2), P( 2,-2,2));
  rect(P(-2, 2,-2), P( 2, 2,2));

  viewpoint(sph(10,0,0));
  camera.rotate_sea(0.05);
  camera.rotate_sky(0.01+tix);

  cyan();

  rect(P(-2,-2,-2), P(2,2,-2));
  rect(P(-2,-2, 2), P(2,2, 2));

  rect(P(-2,-2,-2), P( 2,-2,2));
  rect(P(-2, 2,-2), P( 2, 2,2));

  end();
}