【计算机图形学】二、椭圆的生成

1. 算法

2. 源代码

#include "stdafx.h"


#include "GL/glut.h"
#include "stdlib.h"

void init()
{
	glClearColor(1.0,1.0,1.0,0.0);
	
	glMatrixMode(GL_PROJECTION);
	gluOrtho2D(0.0,600.0,0.0,400.0);
}

inline int round(int x)
{
	return int(x+0.5);
}

void setPixel(int x, int y)
{
	glBegin(GL_POINTS);
	glVertex2i(x,y);
	glEnd();