mycpp.cpp

Visual_C++.NET实用编程百例

#include "windows.h"
#include "gl/gl.h"
#include "gl/glu.h"
#include "gl/glaux.h"
#include "conio.h"
#include "math.h"

void main(void)
{
	//窗口显示单缓存和RGB模式
	auxInitDisplayMode(AUX_SINGLE|AUX_RGBA);
	auxInitPosition(0,0,200,200);
	//初始化窗口
	auxInitWindow("简单图形");
	//将窗口设置为白色
	glClearColor(255.0,255.0,255.0,0.0);
	glClear(GL_COLOR_BUFFER_BIT);
	//选择红色
	glColor3f(1.0,0.0,0.0);
	//绘图模式为直线
	glPolygonMode(GL_FRONT,GL_LINE);
	//绘制矩形
	glRectf(-0.7,-0.9,-0.3,-0.2);
	//绘图模式为填充
	glPolygonMode(GL_FRONT,GL_FILL);
	//绘制填充矩形
	glRectf(0.2,0.4,0.9,0.95);
	glEnd();
	//选择绿色，填充
	glColor3f(0.0,1.0,0.0);
	glPolygonMode(GL_FRONT,GL_FILL);
	//绘制圆形
	glBegin(GL_POLYGON);
	for(int i=0;i<100;i++)
	{
		double cosin=0.5*cos(i*2*3.14/100.0);
		double sine=0.5*sin(i*2*3.14/100.0);
		glVertex2d(cosin-0.5,sine+0.5);
	}
	glEnd();
	//填充三角形
	glBegin(GL_TRIANGLE_STRIP);
	glColor3f(0.0,0.0,1.0);
	glVertex3f(0.7,-0.3,1.0);
	glColor3f(0.0,1.0,0.0);
	glVertex3f(0.2,-0.3,-0.5);
	glColor3f(1.0,0.0,0.0);
	glVertex3f(0.5,-0.9,0.5);
	glEnd();
	glFlush();
	getch();
}