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</o:shapelayout></xml><![endif]--></head><body lang=DE link=blue vlink=purple><div class=WordSection1><p class=MsoNormal><span lang=EN-US style='font-family:"Calibri","sans-serif";color:#1F497D'>Hi,<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-family:"Calibri","sans-serif";color:#1F497D'>I do not know about a Zooming Event, but with an interactor style like e.g. vtkInteractorStyleRubberBandZoom (maybe also with interactor styles without rubber band – have not tried this) you can query the vtkCommand::SelectionChangedEvent event via the usual callback/observer pattern used in vtk. I use this to achieve similar effects when the user wants to zoom into a 2D image or plot.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-family:"Calibri","sans-serif";color:#1F497D'>Best,<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-family:"Calibri","sans-serif";color:#1F497D'>Daniel<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><div><div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0cm 0cm 0cm'><p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>Von:</span></b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> vtkusers-bounces@vtk.org [mailto:vtkusers-bounces@vtk.org] <b>Im Auftrag von </b>Boehm, Lukas<br><b>Gesendet:</b> Montag, 1. Oktober 2012 15:35<br><b>An:</b> vtkusers@vtk.org<br><b>Betreff:</b> [vtkusers] Zoom changed event<o:p></o:p></span></p></div></div><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><span lang=EN-US>Hello,<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US>I have to recognize if the user has changed the zooming factor of my render window. I was wondering if there’s a zoom changed event, but I didn’t find anything. <o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US>Could you please help me?<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US>Thank you very much!<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>Lukas<o:p></o:p></span></p></div><P style="FONT-SIZE: 13px"><span style="FONT-FAMILY: Arial">------------------------------------------------------------------------------------------------------ <br>Registergericht: Traunstein / Registry Court: HRB 275 - Sitz / Head Office: Traunreut <br>Aufsichtsratsvorsitzender / Chairman of Supervisory Board: Rainer Burkhard <br>Geschäftsführung / Management Board: Thomas Sesselmann (Vorsitzender / Chairman),<br>Michael Grimm, Matthias Fauser, Sebastian Tondorf</span></P>
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