Scan Convert a circle using polynomial method C++ code

Learn here Scan Convert a circle using polynomial method C++ code.

#include<graphics.h>

#include<stdio.h>

#include<conio.h>

#include<math.h>

void plotcircle(int,int,int,int);

int main()

{

int gd = DETECT, gm;;

int xc,yc,x,y,xend,r,d;

initgraph(&gd, &gm, "");

printf("\n\n Enter xc:");

scanf("%d",&xc);

printf("\n\n Enter yc:");

scanf("%d",&yc);

printf("\n\n Enter r:");

scanf("%d",&r);

x=0;

xend=r/sqrt(2);

plotcircle(xc,yc,x,y);

while(x<xend)

{

x=x+1;

y=sqrt((r*r)-(x*x));

plotcircle(xc,yc,x,y);

}

getch();

}

void plotcircle(int xc,int yc,int x,int y)

{

putpixel(xc+x,yc+y,2);

putpixel(xc-x,yc+y,2);

putpixel(xc+x,yc-y,2);

putpixel(xc+y,yc+x,2);

putpixel(xc-y,yc-x,2);

putpixel(xc-y,yc+x,2);

putpixel(xc+y,yc-x,2);

putpixel(xc-x,yc-y,2);

}

Thanks for watching this C++ code about computer graphics.

Educative Site Free Online Academic Courses Tutorials, Books with enough questions and answers