简单Opengl时钟时钟源代码可以运行.doc

#pragma comment(lib, glut32.lib)#pragma comment(lib, glu32.lib)#pragma comment(lib, opengl32.lib) #include #include#define PI 3.14159GLfloatm_rotAngle=0.0;void Display(void)glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);glLineWidth(5);GLfloat i,angle;GLint circle_points = 100;GLint circle_point = 60; glBegin(GL_LINE_LOOP); /绘制闹钟的外圆 for (i = 0; i circle_points; i+) angle = 2*PI*i/circle_points; glVertex2f(100*cos(angle), 100*sin(angle); glEnd(); glBegin(GL_LINE_LOOP); /绘制原点小圆 for (i = 0; i circle_points; i+) angle = 2*PI*i/circle_points; glVertex2f(cos(angle), sin(angle); glEnd();glMatrixMode(GL_MODELVIEW);glLoadIdentity(); glPointSize(1); glBegin(GL_POINTS); /绘制秒针刻度 for (i = 0; i circle_point; i+) angle = 2*PI*i/circle_point; glVertex2f(95*cos(angle), 95*sin(angle); glEnd();glMatrixMode(GL_MODELVIEW);glLoadIdentity();glPointSize(5); glBegin(GL_POINTS); /绘制时针刻度 for (i = 0; i 216000.0f)m_rotAngle = 0.0f;glutSwapBuffers();void Init()glEnable(GL_DEPTH_TEST);/启用隐藏面移除glClearColor(0.0f, 0.0f, 0.0f, 1.0f ); void GLTimer(int value) glutPostRedisplay(); glutTimerFunc(100, GLTimer, 1);void Reshape(int w, int h) GLfloat nRange = 100.0f; if(h = 0) h = 1; glViewport(0, 0, w, h); glMatrixMode(GL_PROJECTION); glLoadIdentity(); if (w = h) glOrtho (-nRange, nRange, nRange*h/w, -nRange*h/w, -nRange*2.0f, nRange*2.0f); else glOrtho (-nRange*w/h, nRange*w/h, nRange, -nRange, -nRange*2.0f, nRange*2.0f); glMatrixMode(GL_MODELVIEW); glLoadIdentity();int main(int argc, char* argv)glutInit(&argc, argv);glutInitDisplayMode(GLUT_DOUBLE | GLUT_RGB | GLUT_DEPTH);glutInitWindowSize(800, 600);glutCreateWindow(时钟);glutReshapeFunc(Reshape);gl