Architectural pattern: Using C/C++ and graphics

Hey guys its very simple but beautiful architectural pattern using C/C++ with graphics.  I don't know its name, if you guys know then please leave a comment below. Here's the screen shot of the output.

Now, let us see the codes. Here by changing the value of the n we can create different pattern. For this program I have choosen value as 15 but do try with other values also. Here's the code.

/*
    Programmer: Ashok Kumar Shrestha (ak007)
    Program Details: Generates Awesome Circular pattern 3.1
*/


#include<graphics.h>
#include<conio.h>
#include<dos.h>
#include<stdio.h>

main()
{
   int gd = DETECT, gm, x, y, color, angle = 0,i,j;
  
    char sstr[20];
   int pat[2][200]={0};
   int n=15;
   struct arccoordstype a, b;

   initgraph(&gd, &gm, "..\\BGI");
   delay(200);

for(i=0;i<n;i++)
   {
    setcolor(11);
    arc(getmaxx()/2,getmaxy()/2,i*360/n,(i+1)*360/n,225);
    getarccoords(&a);
    pat[0][i]=a.xstart;
    pat[1][i]=a.ystart;
   }

   for(i=0;i<n;i++)
   {
    for(j=i;j<n;j++)
    {
        line(pat[0][i],pat[1][i],pat[0][(j+1)%n],pat[1][(j+1)%n]);
        delay(80);
    }
   }

   getch();
   closegraph();
   return 0;
}
//End of the program