Practical-5 || CG || Boundary and Flood Fill Algorithm Ma'am's Edit.cpp

#include <iostream.h>
#include <graphics.h>
#include <dos.h>
#include <conio.h>
//!Boundary Fill Algorithm with 4 points checking
int boundaryFill(int x, int y, int fillcolor, int backgroundcolor)
{
	int current = getpixel(x, y);
	if (current != backgroundcolor && current != fillcolor)
	{
		putpixel(x, y, fillcolor);
		boundaryFill(x + 1, y, fillcolor, backgroundcolor);
		boundaryFill(x, y + 1, fillcolor, backgroundcolor);
		boundaryFill(x - 1, y, fillcolor, backgroundcolor);
		boundaryFill(x, y - 1, fillcolor, backgroundcolor);
	}
	return fillcolor; //returning temp to get a reference of fill colour (Not a necessary step now)
}

//!Flood Fill Algorithm function with 4 points filling
int floodFill(int x, int y, int fillcolor, int oldcolor)
{

	//*flood filling starting cordinates

	if (getpixel(x, y) == oldcolor)
	{
		putpixel(x, y, fillcolor);
		floodFill(x + 1, y, fillcolor, oldcolor);
		floodFill(x, y + 1, fillcolor, oldcolor);
		floodFill(x - 1, y, fillcolor, oldcolor);
		floodFill(x, y - 1, fillcolor, oldcolor);
	}
	return fillcolor;
}
//!main Function
int main()
{
	clrscr();
	int gm, gd = DETECT, radius;
	int x, y;
	int x1, y1;
	cout << "Enter X and Y Co-Ordinates of the Circle : ";
	cin >> x >> y;
	x1 = x;
	y1 = y;
	cout << "\nEnter the Radius of The Circle : ";
	cin >> radius;
	int option;

	initgraph(&gd, &gm, "c:\\turboc3\\bgi");
	circle(x, y, radius);

	do
	{
		cout << "\n1) Boundary Fill\n2) Flood Fill (White)\n3) Flood Fill (Orange)\n4) Exit";
		cout << "\nEnter Your Option : ";
		cin >> option;

		switch (option)
		{
		case 1:
			cout << "\nBOUNDARY FILL ALGORITHM\n";
			int t;
			t = boundaryFill(x, y, 1, 15);
			x = x1; //to give center coordiantes for other algorithms
			y = y1;
			getch();
			break;
		case 2:
			cout << "\nFLOOD FILL ALGORITHM\n";
			t = floodFill(x, y, 15, t);
			x = x1; //to give center coordiantes for other algorithms
			y = y1;
			getch();
			break;
		case 3:
			cout << "\nFLOOD FILL ALGORITHM\n";
			t=floodFill(x, y, 12, t);
			x = x1; //to give center coordiantes for other algorithms
			y = y1;
			getch();
			break;
		case 4:
			cout << "\nThe Program ended\n";
			break;

		default:
			cout << "\nInvalid Option is pressed\n";
			break;
		}

	} while (option != 4);
	closegraph();
	return 0;
}

Practical-5 || CG || Boundary and Flood Fill Algorithm.cpp

#include <iostream.h>
#include <graphics.h>
#include <dos.h>
#include <conio.h>
//!Boundary Fill Algorithm with 4 points checking
void boundaryFill(int x, int y, int fillcolor, int backgroundcolor)
{
	int current = getpixel(x, y);
	if (current != backgroundcolor && current != fillcolor)
	{
		putpixel(x, y, fillcolor);
		boundaryFill(x + 1, y, fillcolor, backgroundcolor);
		boundaryFill(x, y + 1, fillcolor, backgroundcolor);
		boundaryFill(x - 1, y, fillcolor, backgroundcolor);
		boundaryFill(x, y - 1, fillcolor, backgroundcolor);
	}
}
//! Boundary Fill Algorithm with 8 points checking***** Uncomment to use***
/*
void boundaryFill(int x, int y, int fill_color,int boundary_color)
{
    if(getpixel(x, y) != boundary_color && getpixel(x, y) != fill_color)
    {
	putpixel(x, y, fill_color);
	boundaryFill(x + 1, y, fill_color, boundary_color);
	boundaryFill(x, y + 1, fill_color, boundary_color);
	boundaryFill(x - 1, y, fill_color, boundary_color);
	boundaryFill(x, y - 1, fill_color, boundary_color);
	boundaryFill(x - 1, y - 1, fill_color, boundary_color);
	boundaryFill(x - 1, y + 1, fill_color, boundary_color);
	boundaryFill(x + 1, y - 1, fill_color, boundary_color);
	boundaryFill(x + 1, y + 1, fill_color, boundary_color);
    }
}
*/
//!Flood Fill Algorithm function
void floodFill(int x, int y, int fillcolor, int oldcolor)
{

	//*flood filling starting cordinates
	 
	if (getpixel(x, y) == oldcolor)
	{
		putpixel(x, y, fillcolor);
		floodFill(x + 1, y, fillcolor, oldcolor);
		floodFill(x, y + 1, fillcolor, oldcolor);
		floodFill(x - 1, y, fillcolor, oldcolor);
		floodFill(x, y - 1, fillcolor, oldcolor);
	}
}
//!main Function
int main()
{
	clrscr();
	int gm, gd = DETECT, radius;
	int x, y;
	cout << "Enter X and Y Co-Ordinates of the Circle : ";
	cin >> x >> y;
	cout << "\nEnter the Radius of The Circle : ";
	cin >> radius;
	int option;
	cout << "\n1) Boundary Fill Algorithm\n2) Flood Fill Algorithm\nEnter your Choice : ";
	cin >> option;
	switch (option)
	{
		case 1:
			initgraph(&gd, &gm, "c:\\turboc3\\bgi");
			circle(x, y, radius);
			cout << "\nBOUNDARY FILL ALGORITHM\n";
			boundaryFill(x, y, 1, 15);
			break;
		case 2:
			initgraph(&gd, &gm, "c:\\turboc3\\bgi");
			circle(x, y, radius);
			cout << "\nFLOOD FILL ALGORITHM\n";
			floodFill(x, y, 12, 0);
			break;
		default:
			cout << "\nInvalid option\n";
			break;
	}

	getch();
	closegraph();

	return 0;
}