计算机图形学实验报告一.doc

计算机图形学实验报告一、 实验要求1、 练习使用GDI函数绘出基本几何元素，如点、线、矩形、圆、椭圆、多边形、圆弧等、并能够用颜色填充2、练习使用GDI函数显示图像3、使用opengl函数写一个控制台程序，要求输出一些简单的二维图形：如线（实线、虚线）、四边形、多边形、圆、六面体、球、圆锥、茶壶等。二、 实验目的1.掌握Window图形编程的基本方法；2.学会使用基本绘图函数和Window GDI对象；三、 实验环境Windows系统,vs2017四、 实验内容与步骤1、 练习使用GDI函数绘出基本几何元素，如点、线、矩形、圆、椭圆、多边形、圆弧等、并能够用颜色填充/线pDC-MoveTo(100, 50);pDC-LineTo(200, 100);pDC-SelectObject(&pOldPen1);/矩形pDC-Rectangle(250, 50, 550,175);pDC-SelectObject(&pOldPen2);pDC-SelectObject(&pOldBrush);pen2.DeleteObject();/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 lpPoint5;lpPoint0 = CPoint(200,200);lpPoint1 = CPoint(100, 300);lpPoint2 = CPoint(150, 400);lpPoint3 = CPoint(250, 400);lpPoint4 = 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3.使用opengl函数写一个控制台程序，要求输出一些简单的二维图形：如线（实线、虚线）、四边形、多边形、圆、六面体、球、圆锥、茶壶等。void display(void)glClearColor(1.0f, 1.0f, 1.0f, 1.0f);glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);glColor3f(1.0, 0.0, 0.0);glLineWidth(3.0);/线glBegin(GL_LINES);glVertex2f(-0.75, 0.9);glVertex2f(-0.25, 0.9);glEnd();/虚线glLineStipple(1, 0x00FF);glEnable(GL_LINE_STIPPLE);glBegin(GL_LINES);glVertex2f(-0.75, 0.8);glVertex2f(-0.25, 0.8);glEnd();glLineStipple(2, 0x00FF);glBegin(GL_LINES);glVertex2f(-0.75, 0.7);glVertex2f(-0.25, 0.7);glEnd();glLineStipple(1, 0x0C0F);glBegin(GL_LINES);glVertex2f(-0.75, 0.6);glVertex2f(-0.25, 0.6);glEnd();glLineStipple(3, 0x0C0F);glBegin(GL_LINES);glVertex2f(-0.75, 0.5);glVertex2f(-0.25, 0.5);glEnd();glLineStipple(1, 0xAAAA);glBegin(GL_LINES);glVertex2f(-0.75, 0.4);glVertex2f(-0.25, 0.4);glEnd();glLineStipple(2, 0xAAAA);glBegin(GL_LINES);glVertex2f(-0.75, 0.3);glVertex2f(-0.25, 0.3);glEnd();glLineStipple(3, 0xAAAA);glBegin(GL_LINES);glVertex2f(-0.75, 0.2);glVertex2f(-0.25, 0.2);glEnd();glLineStipple(4, 0xAAAA);glBegin(GL_LINES);glVertex2f(-0.75, 0.1);glVertex2f(-0.25, 0.1);glEnd();glDisable(GL_LINE_STIPPLE);glRectf(-0.25, -0.25, -0.75, -0.75);glPolygonMode(GL_FRONT, GL_FILL);glPolygonMode(GL_BACK, GL_LINE);glBegin(GL_POLYGON);glVertex3f(0.2, 0.1, 0.0);glVertex3f(0.6, 0.3, 0.0);glVertex3f(0.7, 0.45, 0.0);glVertex3f(0.4, 0.75, 0.0);glVertex3f(0.1, 0.6, 0.0);glEnd();glBegin(GL_POLYGON);for (int i = 0; in; i+)glVertex2f(R*cos(2 * Pi / n*i) + 0.5, R*sin(2 * Pi / n*i) - 0.5);glEnd();glFlush();/主程序void main(int argc, char * *argv)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)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glutWireCube(3);/绘制立方体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,