/* -*-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; } picture(P(-4,-4), P(4,4), "5 x 5in"); begin(); revolutions(); grid(1,1); P ctr(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()), "$\\theta$"); // a cube :) domain R(P(-2,-2,-2), P(2,2,2), mesh(1,1,1)); camera.at(sph(10,tix(),-0.05)); plain(Cyan()); plot(xyz, R); // draw cube; xyz = Cartesian pt constructor camera.at(sph(10,0.01 + tix(),-0.05)); // 3.6 degrees away red(1.4); // slightly lightened red plot(xyz, R); end(); }