EEPW论坛

#include <GL/glut.h>
#include <math.h>
#include<stdio.h>
const GLfloat factor = 0.1f;
void myDisplay(void)
{
    GLfloat x;
    glClear(GL_COLOR_BUFFER_BIT);
    glBegin(GL_LINES);
        glVertex2f(-1.0f, 0.0f);
        glVertex2f(1.0f, 0.0f);        //x轴
        glVertex2f(0.0f, -1.0f);
        glVertex2f(0.0f, 1.0f);    //y轴   
    glEnd();
    glBegin(GL_LINE_STRIP);
    for(x=-1.0f/factor; x<1.0f/factor; x+=0.01f)
    {
        glVertex2f(x*factor, sin(x)*factor);
    }
    glEnd();
    glFlush();
    printf("ID:2013304136");
    
}
int main(int argc, char *argv[])
{
    glutInit(&argc, argv);
    glutInitDisplayMode(GLUT_RGB | GLUT_SINGLE);
    glutInitWindowPosition(100, 100);
    glutInitWindowSize(400, 400);
    glutCreateWindow("第一个OpenGL程序");
    glutDisplayFunc(&myDisplay);
    glutMainLoop();
    return 0;
}