Current semester i have a Computer Graphics as a subject. Here is my first program that implements the bresenham's circle drawing algorithm to draw a circle and with some lines i created a smiley : ) #include "stdio.h" #include "graphics.h" void brecircle(xc,yc,r) { int x,y,p; x=0; y=r; putpixel(xc+x,yc-y,1); p=3-(2*r); for(x=0;x<=y;x++) { if (p<0) { y=y; p=(p+(4*x)+6); } else { y=y-1; p=p+((4*(x-y)+10)); } putpixel(xc+x,yc-y,15); putpixel(xc-x,yc-y,15); putpixel(xc+x,yc+y,15); putpixel(xc-x,yc+y,15); putpixel(xc+y,yc-x,15); putpixel(xc-y,yc-x,15); putpixel(xc+y,yc+x,15); putpixel(xc-y,yc+x,15); } } int main() { int x,y; int gd = DETECT, gm=0; initgraph(&gd,&gm,""); x=getmaxx()/2; y=getmaxy()/2; brecircle(x,y,150); brecircle(x-50,y-50,19); brecircle(x+50,y-50,19); line(x,y,x+20,y+20); line(x,y,x-20,y+20); line(x-20,y+20,x+20,y+20); line(x-40,y+50,x+40,y+50); getch(); closegraph(); return 0; }