Thursday, August 16, 2012
Bresenham's Circle Drawing Algorithm Using C Programming
#include<stdio.h>#include<conio.h>#include<graphics.h>void main(){ int gd=DETECT,gm; int x,y,r; void cir(int,int,int); printf("Enter the Mid points and Radious:"); scanf("%d%d%d",&x,&y,&r); initgraph(&gd,&gm,""); cir(x,y,r); getch(); closegraph();}void cir(int x1,int y1,int r){ int x=0,y=r,p=1-r; void cliplot(int,int,int,int); cliplot(x1,y1,x,y); while(x<y) { x++; if(p<0) p+=2*x+1; else { y--; p+=2*(x-y)+1; } cliplot(x1,y1,x,y); } }void cliplot(int xctr,int yctr,int x,int y){ putpixel(xctr +x,yctr +y,1); putpixel(xctr -x,yctr +y,1); putpixel(xctr +x,yctr -y,1); putpixel(xctr -x,yctr -y,1); putpixel(xctr +y,yctr +x,1); putpixel(xctr -y,yctr +x,1); putpixel(xctr +y,yctr -x,1); putpixel(xctr -y,yctr -x,1); getch();} |
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