#include"3dframe.cpp"
#include<iostream.h>
void circleMidpoint(int ,int ,int,int );
void circlePlotpoint(int ,int ,int ,int,int ) ;
   
void main()
{
     int gd=DETECT,gm;
     
initgraph(&gd,&gm,"c:\\tc\\bgi");
     int
x_center=0,y_center=0,z_center=0,radius=700;
     DRAW3DFRAME();
     cleardevice();
     outtextxy(0,0,"Circle
before Sweep");
     
circleMidpoint(x_center,y_center,z_center,radius);
     getch();
     outtextxy(0,50,"Now look
at the Translational Sweep");
     getch();
     for(int i=0;i<=1000;i=i+1)
     {
        
translate_point(x_center,y_center,z_center,0,0,1);
        x_center=P1[0][0];
        y_center=P1[0][1];
        z_center=P1[0][2];
        circleMidpoint(P1[0][0],P1[0][1],P1[0][2],radius);
     }
     getch();
     cleardevice();
     moveto(0,0);
     outtextxy(0,0,"Now look
at the Rotational Sweep");
     getch();
     cleardevice();
     radius=200;
     for(float  j=0;j<=360;j=j+1)
     {
        
rotate_point_X(x_center,y_center,z_center,j);
        x_center=P1[0][0];
        y_center=P1[0][1];
        z_center=P1[0][2];
        
circleMidpoint(P1[0][0],P1[0][1],P1[0][2],radius);
     }
     getch();
     cleardevice();
     outtextxy(0,0,"Now look at
another the Rotational Sweep");
     getch();
     cleardevice();
     radius=1500;
     for(  i=0;i<=300;i=i+1)
     {
        
rotate_point_X(-x_center,-y_center,-z_center,-1);
        x_center=P1[0][0];
        y_center=P1[0][1];
        z_center=P1[0][2];
        
circleMidpoint(P1[0][0],P1[0][1],P1[0][2],radius);
        
rotate_point_Y(-x_center,-y_center,-z_center,-1);
        x_center=P1[0][0];
        y_center=P1[0][1];
        z_center=P1[0][2];
        
circleMidpoint(P1[0][0],P1[0][1],P1[0][2],radius);
        rotate_point_Z(-x_center,-y_center,-z_center,-1);
        x_center=P1[0][0];
        y_center=P1[0][1];
        z_center=P1[0][2];
        
circleMidpoint(P1[0][0],P1[0][1],P1[0][2],radius);
     }
     getch();
     cleardevice();
     getch();
     closegraph();
}
   
void circleMidpoint(int xcenter,int ycenter,int zcenter,int radius)
{
      int x=0;
      int y=radius;
      int p=1-radius;
      //plot for first set of
points
      
circlePlotpoint(xcenter,ycenter,zcenter,x,y);
      while(x<y)
      {
      x=x+1;
      if(p<0)
           p += 2*x + 1;
      else
      {
           y=y-1;
           p +=2*(x-y)+1;
      }
      
circlePlotpoint(xcenter,ycenter,zcenter,x,y);
      }
}
   
void circlePlotpoint(int xcenter,int ycenter,int zcenter,int x,int y)
{
      int arr[4];
      
putxyz(xcenter+x,ycenter+y,zcenter,arr,RED);
      
putxyz(xcenter-x,ycenter+y,zcenter,arr,LIGHTRED);
      
putxyz(xcenter+x,ycenter-y,zcenter,arr,MAGENTA);
      
putxyz(xcenter-x,ycenter-y,zcenter,arr,BROWN);
      
putxyz(xcenter+y,ycenter+x,zcenter,arr,BLUE);
      
putxyz(xcenter-y,ycenter+x,zcenter,arr,YELLOW);
      
putxyz(xcenter+y,ycenter-x,zcenter,arr,GREEN);
      
putxyz(xcenter-y,ycenter-x,zcenter,arr,LIGHTGREEN);
}