XTextPrinter Class

public XTextPrinter m_TextPrinter;

private void FormPlanetView_Load(object sender, EventArgs e)
{
  m_TextPrinter = new XTextPrinter();
  Font myFont = new Font("Gulim", 12, FontStyle.Strikeout | FontStyle.Underline | FontStyle.Bold);
  m_TextPrinter.Initialize(myFont);
}

private bool nxPlanetLayer1_OnRender(object sender, Pixoneer.NXDL.NXPlanet.NXPlanetDrawArgs e)
{
    XVertex3d pt1 = e.ViewArea.GeographicToWorld(XGeoPoint.FromDegree(127.0, 37.0, 0));
    XVertex3d pt2 = e.ViewArea.GeographicToWorld(XGeoPoint.FromDegree(127.0, 38.0, 0));

    e.Graphics.glDisable(XGraphics.GL_DEPTH_TEST);
    e.Graphics.glPushMatrix();
   // Changes World coordinate to Vertex coordinate.
    e.Graphics.glTranslated(-e.WOS.x, -e.WOS.y, -e.WOS.z);

   // Draws line.
    e.Graphics.glColor3f(1.0f, 0.0f, 0.0f);
    e.Graphics.glBegin(XGraphics.GL_LINES);
    e.Graphics.glVertex3d(pt1.x, pt1.y, pt1.z);
    e.Graphics.glVertex3d(pt2.x, pt2.y, pt2.z);
    e.Graphics.glEnd();

   // Prints text.
    e.Graphics.glColor3f(1.0f, 1.0f, 1.0f);  
   e.Graphics.glEnable(XGraphics.GL_DEPTH_TEST);
    XVertex2d posOffset = new XVertex2d(0, 0);
    XVertex2d align = new XVertex2d(0, 0);
    m_TextPrinter.Print("127.0, 37.0", pt1, posOffset, align, Color.Black, true, Color.Gray);
    m_TextPrinter.Print("127.0, 38.0", pt2, posOffset, align, Color.Black, true, Color.Gray);

    e.Graphics.glPopMatrix();
    return default(bool);
}