C Graphics Program For Boundary Fill in C
Source Code:-
1: //Program to implement Boundary Fill Algorithm 2: #include <graphics.h>
3: #include <stdlib.h>
4: #include <stdio.h>
5: #include <conio.h>
6: #include "grplib.h"
7: int bfill(int x,int y,int f,int b)
8: {
9: if(getpixel(x,y) !=b && getpixel(x,y)!=f)
10: {
11: putpixel(x,y,f);
12: bfill(x+1,y,f,b);
13: bfill(x-1,y,f,b);
14: bfill(x,y+1,f,b);
15: bfill(x,y-1,f,b);
16: }
17: return 0;
18: }
19: int main(void)
20: {
21: int gdriver = DETECT, gmode;
22: int x,y;
23: int bx,by;
24: int vert[10],n,i;
25: int left, top, right, bottom;
26: initgraph(&gdriver, &gmode, "");
27: printf(" Boundary fill :\n");
28: printf(" Enter the no. of vertices .. ? ");
29: scanf("%d",&n);
30: printf(" Select the vertices >>");
31: initmouse();
32: showmouse();
33: for(i=0;i<n*2;i+=2)
34: {
35: getposOnClick(&x,&y);
36: hidemouse();
37: putpixel(x,y,10);
38: showmouse();
39: vert[i]=x;
40: vert[i+1]=y;
41: }
42: hidemouse();
43: dpoly(n,vert);
44: showmouse();
45: gotoxy(10,23);
46: printf("Click on a point to fill .. ");
47: getposOnClick(&x,&y);
48: hidemouse();
49: bx=x;
50: by=y;
51: showmouse();
52: hidemouse();
53: bfill(bx,by,10,15);
54: gotoxy(10,24);
55: printf(" all done !");
56: getch();
57: closegraph();
58: return 0;
59: }
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