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<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial'>Hi to All vtkUsers,<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial'>My pipeline is : <b><span
style='font-weight:bold'>data……. > class A > class
B > class C >……renderer1 in window 1</span></b> <o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
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|<o:p></o:p></span></font></p>
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10.0pt;font-family:Arial'>
|<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
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<b><span style='font-weight:bold'> class D<o:p></o:p></span></b></span></font></p>
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|<o:p></o:p></span></font></p>
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| <o:p></o:p></span></font></p>
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<b><span style='font-weight:bold'>renderer2 in window 2<o:p></o:p></span></b></span></font></p>
<p class=MsoNormal><b><font size=2 face=Arial><span lang=EN-GB
style='font-size:10.0pt;font-family:Arial;font-weight:bold'><o:p> </o:p></span></font></b></p>
<p class=MsoNormal><b><font size=2 face=Arial><span lang=EN-GB
style='font-size:10.0pt;font-family:Arial;font-weight:bold'><o:p> </o:p></span></font></b></p>
<p class=MsoNormal><b><font size=2 face=Arial><span lang=EN-GB
style='font-size:10.0pt;font-family:Arial;font-weight:bold'>class D</span></font></b><font
size=2 face=Arial><span lang=EN-GB style='font-size:10.0pt;font-family:Arial'>
is a derived widget class containing istances of 3 different vtkwidgets sharing
the same interactor.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial'>I can manage very well the widgets events in <b><span
style='font-weight:bold'>class D</span></b> using the usual command observer
pattern and the update is correct as expected but the problem is: I cannot pass
these observed events back to the pipeline and Update the <b><span
style='font-weight:bold'>class C</span></b>….<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial'>I only obtain the execution of the pipeline once,
launching the application; the interaction events are passed only to window 2
and not back to update the window1…<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial'>where is the truble? Should I use a chain of
observers? Is there an example in the testing-example vtk documentation even if
I searched hard and did not find the proper example...<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial'>I found: /widget/Testing/Cxx/TestImageTracerWidged.cc
,but there, is used only one 3dwidget per renderer and the observers are in
main pipeline.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial'>I’m using vtk5 last cvs.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial'><o:p> </o:p></span></font></p>
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<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial'>I hope my explanation was clear enougth .<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial'>I will appreciate all the suggestions.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial'>Dr. <st1:PersonName ProductID="Gianni Lazzarato"
w:st="on">Gianni Lazzarato</st1:PersonName><o:p></o:p></span></font></p>
<p class=MsoNormal><st1:country-region w:st="on"><st1:place w:st="on"><font
size=2 face=Arial><span lang=EN-GB style='font-size:10.0pt;font-family:Arial'>Italy</span></font></st1:place></st1:country-region><font
size=2 face=Arial><span lang=EN-GB style='font-size:10.0pt;font-family:Arial'><o:p></o:p></span></font></p>
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