Revision: 68876
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at March 10, 2015 03:16 by ZeusEm
Initial Code
//Shubham Mehta, Write a program to implement Bresenham's Line Algorithm.
#include<stdio.h>
#include<conio.h>
#include<graphics.h>
void main()
{
int gd, gm;
float x1, x2, y1, y2, dx, dy, p, xk, yk, slope;
clrscr();
printf("%s", "Please enter x1: ");
scanf("%f", &x1);
printf("%s", "Please enter y1: ");
scanf("%f", &y1);
printf("%s", "Please enter x2: ");
scanf("%f", &x2);
printf("%s", "Please enter y2: ");
scanf("%f", &y2);
gd=DETECT, gm;
initgraph(&gd, &gm, "C:\\TC\\BGI");
putpixel(x1, y1, RED);
slope=(y2-y1)/(x2-x1);
dx=x2-x1;
dy=y2-y1;
xk=x1;
yk=y1;
if(slope<1)
{
p=(2*dy)-dx;
for( ; x1<=x2; x1++)
{
if(p<0)
{
putpixel(++xk, yk, RED);
p+=(2*dy);
}
else
{
putpixel(++xk, ++yk, RED);
p=p+(2*dy)-(2*dx);
}
}
}
else
{
p=(2*dx)-dy;
for( ; y1<=y2; y1++)
{
if(p<0)
{
putpixel(xk, ++yk, RED);
p+=(2*dx);
}
else
{
putpixel(++xk, ++yk, RED);
p=p+(2*dx)-(2*dy);
}
}
}
getch();
closegraph();
}
Initial URL
Initial Description
This is an implementation of the Bresenham's Line Algorithm in Computer Graphics Design in the C programming language.
Initial Title
Graphic Design | Bresenham's Line Algorithm
Initial Tags
Initial Language
C