#include <gl/glut.h>
void Draw()
{ float s[6][2];
  s[0][0]=-0.3; s[0][1]=-0.2; /* initialize Matrix */
    s[1][0]=0.3; s[1][1]=-0.2;
    s[2][0]=0.3; s[2][1]=0.0;
    s[3][0]=-0.3; s[3][1]=0.0;
    s[4][0]=-0.3; s[4][1]=0.2;
    s[5][0]=0.3; s[5][1]=0.2;
int nrPoints=6;
glClear(GL_COLOR_BUFFER_BIT);
glColor3f(1.0, 0.0, 0.0);
glBegin(GL_LINES);
    for(int i=0;i<nrPoints-1;i++){
      glVertex2f(s[i][0],s[i][1]);
      glVertex2f(s[i+1][0],s[i+1][1]);
    }
    glEnd();
      glFlush();
}
void Initialize()
{
  glClearColor(0.0, 0.0, 0.0, 0.0);
  glMatrixMode(GL_PROJECTION);
  glLoadIdentity();
  glOrtho(1.0, 1.0, 0.0, 1.0, -1.0, 1.0);
}
int main(int iArgc, char** cppArgv)
{
  glutInit(&iArgc, cppArgv);
  glutInitDisplayMode(GLUT_SINGLE | GLUT_RGB);
  glutInitWindowSize(200, 200);
  glutInitWindowPosition(200, 200);
  glutCreateWindow("UIST Line");
  Initialize();
  glutDisplayFunc(Draw);
  glutMainLoop();
return 0;
}