<html><body><div style="color:#000; background-color:#fff; font-family:arial, helvetica, sans-serif;font-size:10pt"><div><span>Hi all,</span></div><div><span><br></span></div><div><span><br></span></div><div><span>I wanna add letter in the middle of vtkCanvas. can anyone tell me how to set the position of vtkTextActor.</span></div><div><span><br></span></div><div><span>Best Regards,</span></div><div> </div><div>El-Hassan Abdou <br>Biomedical engineering</div></div></body></html>