Download this file : 2d.c
program:
#include"stdio.h"
#include"conio.h"
#include"graphics.h"
#include"math.h"
int gd=0,gm,theta,xf,yf,x1,y1,x2,y2,xa1,xa2,ya1,ya2,a;
int midx,midy,tx,ty,choice,sx,sy,sh,xa[10],ya[10],first;
int i,n=5;
int xf,yf;
int xb[10],yb[10];
void main()
{
do
{
first=0;
org();
getch();
printf("\n1.translation\n2.rotation\n3.scaling\n4.reflection\n5.shear\n6.exit\nenter ur choice\n");
scanf("%d",&choice);
switch(choice)
{
case 1:
printf("Enter the translation factor (x,y) :");
scanf("%d%d",&tx,&ty);
org();
rectangle(midx+tx,midy-100+ty,midx+100+tx,midy+ty);
getch();
closegraph();
break;
case 2:
printf("Enter the angle :");
scanf("%d",&a);
org();
rotation();
break;
case 3:
printf("Enter the scaling factor (x,y):");
scanf("%d%d",&sx,&sy);
org();
x1=0;
y1=-100;
x2=100;
y2=0;
xa1=x1*sx+midx;
ya1=y1*sy+midy;
xa2=x2*sx+midx;
ya2=y2*sy+midy;
rectangle(xa1,ya1,xa2,ya2);
getch();
closegraph();
break;
case 4:
org();
rectangle(midx,midy,midx+100,midy+100);
getch();
closegraph();
break;
case 5:
printf("enter the shear value");
scanf("%d",&sh);
cleardevice();
org();
for(i=0;i < n;i++)
{
xb[i]=xa[i]+sh*(ya[i]-yf);
yb[i]=ya[i];
}
for(i=0;i < n;i++)
line(xb[i],yb[i],xb[(i+1)%n],yb[(i+1)%n]);
getch();
}
}while(choice<6);
getch();
}
org()
{
initgraph(&gd,&gm,"");
midx=getmaxx()/2;
midy=getmaxy()/2;
xf=midx;
yf=midy;
xa[0]=midx;
ya[0]=midy-100;
xa[1]=midx+100;
ya[1]=midy-100;
xa[2]=midx+100;
ya[2]=midy;
xa[3]=midx;
ya[3]=midy;
xa[4]=midx;
ya[4]=midy-100;
cleardevice();
setcolor(WHITE);
line(0,midy,2*midx,midy);
line(midx,0,midx,2*midy);
setcolor(4);
if(first==0)
{
setlinestyle(SOLID_LINE,1,1);
first=1;
}
else
{
setlinestyle(DASHED_LINE,1,1);
}
rectangle(midx,midy-100,midx+100,midy);
setlinestyle(SOLID_LINE,1,1);
return;
}
rotation()
{
theta=(a*2*3.14)/180;
for(i=0;i < n;i++)
{
xb[i]=xf+(xa[i]-xf)*cos(theta)-(ya[i]-yf)*sin(theta);
yb[i]=yf+(xa[i]-xf)*sin(theta)-(ya[i]-yf)*cos(theta);
}
for(i=0;i < n;i++)
line(xb[i],yb[i],xb[(i+1)%n],yb[(i+1)%n]);
getch();
cleardevice();
return;
}
Download this file : 2d.c
Output:
