Cricle Using Midpoint Drowing Algorithm

Cricle Using Midpoint  Drowing Algorithm

Aim: Write a program demonstrate a Cricle Using Midpoint  Drowing                                     Algorithm.

Source Code:

#include<graphics.h>

#include<iostream.h>

#include<coino.h>

#include<math.h>

void midcirc(int x,int y,int rad);

void display(int,int,int,int);

void main()

{

int x,y,r;

int gd=DETECT,gm;

intigraph(&gd,&gm,"C\\TURBOC3\\BGI")'

cleardevice();

cout<<"Midpoint circle drwing algorithm");

cout<<"/n Enter the Starting co-ordinate of a Circle"");

cin>>x>>y;

cout<<\n Enter the radius of the Cirle:");

cin>>r;

mid cir (x,y,r);

getch();

closegraph();

}

void midcirc(int x,int y,int rad)

{

int x1,y1;

float pk;

x1=0;

y1=rad;

pk=1-rad;

While(x1<=y1)

{

if(pk=<=0)

{

x1++;

pk=pk+(2*1)+1;

}

else

{

x1++;

y1--;

pk=pk=2*(x1-y1)+1;

}

display(x1,y1,x,y);

}

}

void display(int x1,int y1,int x,int y)

{
Putpixel(x1+x,y1+y,WHITE);

Putpixel(x1+x,y-y1,WHITE);

Putpixel(x-x1,y1+y,WHITE);

Putpixel(x-x1,y1-y,WHITE);

Putpixel(x+y1,y+x1,WHITE);

Putpixel(x+y1,y1-x1,WHITE);

Putpixel(x-y1,y+x1,WHITE);

Putpixel(x-y1,y-x1,WHITE);

}

YOUTUBE LINK: https://www.youtube.com/watch?v=fSqDmydWdbg