1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 | #include #include #include #include<math> void main() { int Xs,Ys,Xe,Ye; float X,Y,m; int gd=DETECT,gm ; initgraph(&gd,&gm,"C:\\tc\\bgi"); printf ("Enter the value of (Xs , Xs ) & (Xe , Ye)\n"); scanf ("%d%d%d%d", &Xs ,&Ys , &Xe , &Ye); X = abs(Xs); Y = abs(Ys); m=(Ye-Ys)/(Xe-Xs); cleardevice( ); if(m<1) { putpixel (X,Y,RED); while(Y!=Ye) { X=X+1; Y=abs(Y+m); putpixel (X,Y,RED) ; } } else { putpixel(X,Y,RED); while(X!=Xe) { Y=Y+1; X=abs(X+(1/m)); putpixel(X,Y,RED); } } getch ( ); closegraph ( ); } |