bresenham画线算法_Bresenham的C和C ++线条画算法

雨点打透心脏的1/2处 2022-12-08 04:48 156阅读 0赞

![89e2f5abdcccb1183b0a19e51fb47803.png][]

bresenham画线算法

Here you will get program for bresenham’s line drawing algorithm in C and C++.

在这里，您将获得用于使用C和C ++的bresenham的线条绘制算法的程序。

This algorithm is used in computer graphics for drawing line.

该算法在计算机图形学中用于画线。

The program will work in Turbo C or Turbo C++ compiler as it uses graphics.h header file.

该程序将使用graphics.h头文件在Turbo C或Turbo C ++编译器中运行。

Make sure to change the path of BGI folder inside initgraph() function according to your system. Otherwise the program will not work.

确保根据您的系统更改initgraph()函数中BGI文件夹的路径。 否则，该程序将无法运行。

**Also Read: [Bresenham’s Midpoint Circle Algorithm in C and C++][Bresenham_s Midpoint Circle Algorithm in C and C]**

**另请参阅： [Bresenham的C和C ++中点圆算法][Bresenham_s Midpoint Circle Algorithm in C and C]**

## Bresenham的C语言画线算法程序 **(**Program for Bresenham’s Line Drawing Algorithm in C**)** ##

#include<stdio.h>
    #include<graphics.h>
     
    void drawline(int x0, int y0, int x1, int y1)
    {
        int dx, dy, p, x, y;
     
    	dx=x1-x0;
    	dy=y1-y0;
     
    	x=x0;
    	y=y0;
     
    	p=2*dy-dx;
     
    	while(x<x1)
    	{
    		if(p>=0)
    		{
    			putpixel(x,y,7);
    			y=y+1;
    			p=p+2*dy-2*dx;
    		}
    		else
    		{
    			putpixel(x,y,7);
    			p=p+2*dy;
    		}
    		x=x+1;
    	}
    }
     
    int main()
    {
    	int gdriver=DETECT, gmode, error, x0, y0, x1, y1;
    	initgraph(&gdriver, &gmode, "c:\\turboc3\\bgi");
     
    	printf("Enter co-ordinates of first point: ");
    	scanf("%d%d", &x0, &y0);
     
    	printf("Enter co-ordinates of second point: ");
    	scanf("%d%d", &x1, &y1);
    	drawline(x0, y0, x1, y1);
     
    	return 0;
    }

## Bresenham的C ++线条画算法程序 **(**Program for Bresenham’s Line Drawing Algorithm in C++**)** ##

#include<iostream.h>
    #include<graphics.h>
     
    void drawline(int x0, int y0, int x1, int y1)
    {
        int dx, dy, p, x, y;
     
    	dx=x1-x0;
    	dy=y1-y0;
     
    	x=x0;
    	y=y0;
     
    	p=2*dy-dx;
     
    	while(x<x1)
    	{
    		if(p>=0)
    		{
    			putpixel(x,y,7);
    			y=y+1;
    			p=p+2*dy-2*dx;
    		}
    		else
    		{
    			putpixel(x,y,7);
    			p=p+2*dy;
    		}
    		x=x+1;
    	}
    }
     
    int main()
    {
    	int gdriver=DETECT, gmode, error, x0, y0, x1, y1;
    	initgraph(&gdriver, &gmode, "c:\\turboc3\\bgi");
     
    	cout<<"Enter co-ordinates of first point: ";
    	cin>>x0>>y0;
     
    	cout<<"Enter co-ordinates of second point: ";
    	cin>>x1>>y1;
    	drawline(x0, y0, x1, y1);
     
    	return 0;
    }

**Output**

**输出量**

![Bresenham's Line Drawing Algorithm in C and C++][Bresenham_s Line Drawing Algorithm in C and C]

> 翻译自: [https://www.thecrazyprogrammer.com/2017/01/bresenhams-line-drawing-algorithm-c-c.html][https_www.thecrazyprogrammer.com_2017_01_bresenhams-line-drawing-algorithm-c-c.html]

bresenham画线算法

[89e2f5abdcccb1183b0a19e51fb47803.png]: /images/20221123/016ef35b0919404581c04b4bc7da4402.png
[Bresenham_s Midpoint Circle Algorithm in C and C]: https://www.thecrazyprogrammer.com/2016/12/bresenhams-midpoint-circle-algorithm-c-c.html
[Bresenham_s Line Drawing Algorithm in C and C]: /images/20221123/fc23309a1fc2474fb620942861384ef9.png
[https_www.thecrazyprogrammer.com_2017_01_bresenhams-line-drawing-algorithm-c-c.html]: https://www.thecrazyprogrammer.com/2017/01/bresenhams-line-drawing-algorithm-c-c.html