C Program for Reflection And Sharing

Program /* This program is for the reflection and sharing of triangle. Here the lower first quadrant triangle is reflected to upper fir...

Program

/*
This program is for the reflection and sharing of triangle.
Here the lower first quadrant triangle is reflected to upper first quadrant, the resultant triangle is again reflected to upper second quadrant similarly the process is continue.
In case of sharing two option are shown sharing on x-axis and y-axis. But the sharing is only for positive axis only.

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*/


#include<conio.h>
#include<stdio.h>
#include<stdlib.h>
#include<graphics.h>
void main()
{
int gd=DETECT, gm, n, midx, midy, a, b, m;
clrscr();
initgraph(&gd,&gm,"..\\bgi");
midx=getmaxx()/2;
midy=getmaxy()/2;
a:line(midx,0,midx,getmaxy());
line(midx-midy,midy,midx+midy,midy);
rectangle(midx-midy,0,midx+midy,getmaxy());
line(midx-midy,0,midx+midy,getmaxy());
line(midx+midy,0,midx-midy,getmaxy());
printf("Program for reflection and sharing\n");
printf("Enter choice\n1. Reflection\n2. Sharing\n3. Exit\n");
printf("Choice : ");
scanf("%d",&n);
switch(n)
{
 case 1:
 //codes for triangle
 line(midx+20,midy-10,midx+100,midy-10);
 line(midx+100,midy-10,midx+100,midy-50);
 line(midx+100,midy-50,midx+20,midy-10);

 // reflection (x,y)=(-x,-y)
 setcolor(2);
 line(midx-20,midy+10,midx-100,midy+10);
 line(midx-100,midy+10,midx-100,midy+50);
 line(midx-100,midy+50,midx-20,midy+10);

 // reflection (x,y)=(-x,y)
 setcolor(4);
 line(midx-20,midy-10,midx-100,midy-10);
 line(midx-100,midy-10,midx-100,midy-50);
 line(midx-100,midy-50,midx-20,midy-10);

 // reflection (x,y)=(x,-y)
 setcolor(6);
 line(midx+20,midy+10,midx+100,midy+10);
 line(midx+100,midy+10,midx+100,midy+50);
 line(midx+100,midy+50,midx+20,midy+10);

 // reflection (x,y)=(-y,-x)
 setcolor(8);
 line(midx-10,midy+20,midx-10,midy+100);
 line(midx-10,midy+100,midx-50,midy+100);
 line(midx-50,midy+100,midx-10,midy+20);

 // reflection (x,y)=(-y,x)
 setcolor(10);
 line(midx-10,midy-20,midx-10,midy-100);
 line(midx-10,midy-100,midx-50,midy-100);
 line(midx-50,midy-100,midx-10,midy-20);

 // reflection (x,y)=(y,-x)
 setcolor(12);
 line(midx+10,midy+20,midx+10,midy+100);
 line(midx+10,midy+100,midx+50,midy+100);
 line(midx+50,midy+100,midx+10,midy+20);

 // reflection (x,y)=(y,x)
 setcolor(14);
 line(midx+10,midy-20,midx+10,midy-100);
 line(midx+10,midy-100,midx+50,midy-100);
 line(midx+50,midy-100,midx+10,midy-20);
 getch();
 cleardevice();
 break;

 case 2:
 printf("Enter choice\n1. x-axis Sharing\n2. y-axis Sharing\n3. Exit");
 s:printf("Choice : ");
 scanf("%d",&m);
 switch(m)
 {
  case 1:
  printf("Enter value for sharing : ");
  scanf("%d",&a);
  //triangle formation
 line(midx+20,midy-10,midx+100,midy-10);
 line(midx+100,midy-10,midx+100,midy-50);
 line(midx+100,midy-50,midx+20,midy-10);

  //sharing on x-axis
 setcolor(YELLOW);
 line(midx+20,midy-10,midx+100,midy-10);
 line(midx+100,midy-10,midx+100+(a*50),midy-50);
 line(midx+100+(a*50),midy-50,midx+20,midy-10);
  break;

  case 2:
  printf("Enter value for sharing : ");
  scanf("%d",&b);
  //triangle formation
 line(midx+20,midy-10,midx+100,midy-10);
 line(midx+100,midy-10,midx+100,midy-50);
 line(midx+100,midy-50,midx+20,midy-10);

  //sharing on y-axis
 setcolor(RED);
 line(midx+20,midy-10,midx+100,midy-10-(b*100));
 line(midx+100,midy-10-(b*100),midx+100,midy-50-(b*100));
 line(midx+100,midy-50-(b*100),midx+20,midy-10);
  break;

  case 3:
  exit(0);

  default:
  printf("Enter choice correctly\n");
  }
  goto s;
 break;

 case 3:
 exit(0);

 default:
 printf("Enter choice again\n");
 }
 goto a;
getch();
}

Output