计算机图形学实验报告一

《计算机图形学》实验报告

//圆

pDC->SelectObject(&pen2);

pDC->Ellipse(50,120,150,220);

pDC->SelectObject(&pOldBrush);

//椭圆

pDC->SelectObject(&pen2);

pDC->Ellipse(600, 100, 1025, 325);

pDC->SelectObject(&pOldBrush);

//多边形

pDC->SelectObject(&pen2);

pDC->SelectObject(&pen2);

CPoint lpPoint[5];

lpPoint[0] = CPoint(200,200);

lpPoint[1] = CPoint(100, 300);

lpPoint[2] = CPoint(150, 400);

lpPoint[3] = CPoint(250, 400);

lpPoint[4] = CPoint(300, 300);

pDC->Polygon(lpPoint,5);

//圆弧

pDC->SelectObject(&pen2);

pDC->SelectObject(&pen2);

pDC->Arc(450,200,650,550,50,50,600,900);

2、练习使用GDI函数显示图像

glutInit(&argc, argv);

glutInitDisplayMode(GLUT_SINGLE | GLUT_RGB);

glutInitWindowSize(1000, 1000);

glutInitWindowPosition(0, 0);

glutCreateWindow("实验一");

glutDisplayFunc(&display);

glutMainLoop();

}

茶壶

void display(void)

{

glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);

glColor3f(0.0, 1.0, 0.0);//绿色绘制

glEnable(GL_DEPTH_TEST);//深度缓冲区

glutWireTeapot(2);//绘制茶壶

glFlush();

glutSwapBuffers();

}

void reshape(int w, int h)

{

glViewport(0, 0, w, h); //设置视口

glMatrixMode(GL_PROJECTION); //将当前矩阵指定为投影模式glLoadIdentity();

gluPerspective(60, (GLfloat)w / (GLfloat)h, 1.0, 20); //创建透视投影矩阵glMatrixMode(GL_MODELVIEW);

glLoadIdentity();

gluLookAt(0, 5, 5, 0, 0, 0, 0, 1, 0);//观测点

}

球

void display(void)

{

glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);

glColor3f(0.0, 1.0, 0.0);//绿色绘制

glEnable(GL_DEPTH_TEST);//深度缓冲区

glutWireSphere(1, 20, 16);//绘制球体

glFlush();

glutSwapBuffers();

}

void reshape(int w, int h)

{

glViewport(0, 0, w, h); //设置视口

glMatrixMode(GL_PROJECTION); //将当前矩阵指定为投影模式

glLoadIdentity();

gluPerspective(60, (GLfloat)w / (GLfloat)h, 1.0, 20); //创建透视投影矩阵glMatrixMode(GL_MODELVIEW);

glLoadIdentity();

gluLookAt(0, 3, 3, 0, 0, 0, 1, 1, 0);//观测点

}

六面体

void display(void)