#include<stdio.h> #include<conio.h> #include<graphics.h> void boundary_fill(int x, int y, int fcolor, int bcolor) { if ((getpixel(x,y) != fcolor) && (getpixel(x,y) != bcolor)) { delay(5); putpixel(x, y, fcolor); boundary_fill(x + 1, y, fcolor, bcolor); boundary_fill(x - 1, y, fcolor, bcolor); boundary_fill(x, y - 1, fcolor, bcolor); boundary_fill(x, y + 1, fcolor, bcolor); } } void main() { int x, y, fcolor, bcolor; int gd = DETECT,gm; clrscr(); printf("Enter the seed point (x,y) : "); scanf("%d%d", &x, &y); printf("Enter boundary color : "); scanf("%d", &bcolor); printf("Enter new color : "); scanf("%d", &fcolor); initgraph(&gd, &gm, "C:\\TurboC3\\BGI"); cleardevice(); setcolor(bcolor); /*Draw any Polygon */ // circle(x,y,40); rectangle(x-30,y-50,x+30,y+50); boundary_fill(x, y, fcolor, bcolor); getch(); }
Boundary Fill Algorithm program to fill a polygon
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