Tag: how to fill polygon in c++

Computer Graphics

Flood Fill Algorithm (C++)

#include <iostream.h> #include <conio.h> #include <graphics.h> #include <dos.h> void ffill(int x,int y,int o_col,int n_col){ int current = getpixel(x,y); if(current==o_col){ delay(1); putpixel(x,y,n_col); ffill(x+1,y,o_col,n_col); ffill(x-1,y,o_col,n_col); ffill(x,y+1,o_col,n_col); ffill(x,y-1,o_col,n_col); } } void main(){ int xc,yc,r; int gdriver = DETECT,gmode; initgraph(&gdriver,&gmode,”C:\TC\BGI”); cout<<“Enter co-ordinates of the centre: “; cin>>xc>>yc; cout<<“Enter radius of circle: “; cin>>r; circle(xc,yc,r); cout<<“Press any key to fill circle…”; getch(); ffill(xc,yc,BLACK,RED); getch(); closegraph(); } Continue reading Flood Fill Algorithm (C++)

Darshan Gajara4 Comments
Computer Graphics

Boundary Fill Algorithm (C++)

#include <iostream.h> #include <conio.h> #include <graphics.h> #include <dos.h> void bfill(int x,int y,int f_col,int b_col){ int current = getpixel(x,y); if(current!=f_col&&current!=b_col){ delay(1); putpixel(x,y,f_col); bfill(x+1,y,f_col,b_col); bfill(x-1,y,f_col,b_col); bfill(x,y+1,f_col,b_col); bfill(x,y-1,f_col,b_col); } } void main(){ int xc,yc,r; int gdriver = DETECT,gmode; initgraph(&gdriver,&gmode,”C:\TC\BGI”); cout<<“Enter co-ordinates of the centre: “; cin>>xc>>yc; cout<<“Enter radius of circle: “; cin>>r; circle(xc,yc,r); cout<<“Press any key to fill circle…”; getch(); bfill(xc,yc,RED,WHITE); getch(); closegraph(); } Continue reading Boundary Fill Algorithm (C++)

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