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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Looks like you just need to do an initial render before starting your interactor.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">From:</span></b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif""> vtkusers-bounces@vtk.org [mailto:vtkusers-bounces@vtk.org]
<b>On Behalf Of </b>LOUIS-JORDAN DEERING (RIT Student)<br>
<b>Sent:</b> Thursday, March 10, 2011 8:23 PM<br>
<b>To:</b> vtkusers@vtk.org<br>
<b>Subject:</b> [vtkusers] vtkGenericRenderWindowInteractor<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
<p><span style="font-size:10.0pt">Hello All,<br>
<br>
When I try to link the vtkGenericRenderWindowInteractor to the renWin, the window doesn't render until I click inside of it. How do I fix this? I need the Interactor to perform certain functions, but I need the window to render. If don't link the two together,
the window renders correctly. They commented out block below is where I'm having trouble. Any suggestions? Thank you!<br>
<br>
Luzjadi<br>
<br>
---------------------<br>
<br>
package require vtk<br>
package require vtkinteraction<br>
<br>
#Create the window to place the rendering object in.<br>
vtkRenderWindow renWin<br>
toplevel .top<br>
wm title .top "Impeller Analyzer"<br>
<br>
frame .top.frame<br>
<br>
vtkTkRenderWidget .top.frame.r1<br>
pack .top.frame.r1 -side left -padx 1 -pady 1 -fill both -expand t<br>
pack .top.frame -fill both -expand t<br>
<br>
# Create and bind renderer to the widget window.<br>
set renWin [.top.frame.r1 GetRenderWindow]<br>
vtkRenderer ren1<br>
$renWin AddRenderer ren1<br>
::vtk::bind_tk_render_widget .top.frame.r1<br>
<br>
# Set rendering window properties.<br>
ren1 SetBackground 1 1 1<br>
renWin SetSize 500 500<br>
<br>
#Create a toolbar menu.<br>
menu .tbar<br>
.top config -menu .tbar<br>
<br>
#Create menu bar buttons.<br>
.tbar add cascade -label "File"<br>
.tbar add cascade -label "Help"<br>
<br>
# Set the mouse interaction mode to trackball.<br>
vtkGenericRenderWindowInteractor iren<br>
iren SetRenderWindow $renWin<br>
vtkInteractorStyleTrackballCamera tball<br>
iren SetInteractorStyle tball<br>
iren Initialize<br>
<br>
<br>
# Import the impeller object data files.<br>
vtkDataSetReader impReader<br>
impReader SetFileName "Data/bladeDataXYZ.vtk"<br>
impReader Update<br>
vtkDataSetReader hubReader<br>
hubReader SetFileName "Data/hubData.vtk"<br>
hubReader Update<br>
vtkDataSetReader shroudReader<br>
shroudReader SetFileName "Data/shroudData.vtk"<br>
shroudReader Update<br>
<br>
# Create the outline of the impeller blade.<br>
vtkStructuredGridOutlineFilter impOutline<br>
impOutline SetInputConnection [impReader GetOutputPort]<br>
vtkPolyDataMapper impOutlineMapper<br>
impOutlineMapper SetInputConnection [impOutline GetOutputPort]<br>
vtkActor impOutlineActor<br>
impOutlineActor SetMapper impOutlineMapper<br>
[impOutlineActor GetProperty] SetColor 0 0 0<br>
<br>
# Create the outline of the hub.<br>
vtkStructuredGridOutlineFilter hubOutline<br>
hubOutline SetInputConnection [hubReader GetOutputPort]<br>
vtkPolyDataMapper hubOutlineMapper<br>
hubOutlineMapper SetInputConnection [hubOutline GetOutputPort]<br>
vtkActor hubOutlineActor<br>
hubOutlineActor SetMapper hubOutlineMapper<br>
[hubOutlineActor GetProperty] SetColor 0 0 0<br>
<br>
# Create the outline of the shroud.<br>
vtkStructuredGridOutlineFilter shroudOutline<br>
shroudOutline SetInputConnection [shroudReader GetOutputPort]<br>
vtkPolyDataMapper shroudOutlineMapper<br>
shroudOutlineMapper SetInputConnection [shroudOutline GetOutputPort]<br>
vtkActor shroudOutlineActor<br>
shroudOutlineActor SetMapper shroudOutlineMapper<br>
[shroudOutlineActor GetProperty] SetColor 0 0 0<br>
<br>
# Create the solid geometry of the impeller blade.<br>
vtkStructuredGridGeometryFilter impSolid<br>
impSolid SetInputConnection [impReader GetOutputPort]<br>
vtkPolyDataMapper impSolidMapper<br>
impSolidMapper SetInputConnection [impSolid GetOutputPort]<br>
vtkActor impSolidActor<br>
impSolidActor SetMapper impSolidMapper<br>
[impSolidActor GetProperty] SetColor 0.8 0.8 0.8<br>
<br>
# Create the solid geometry of the hub.<br>
vtkStructuredGridGeometryFilter hubSolid<br>
hubSolid SetInputConnection [hubReader GetOutputPort]<br>
vtkPolyDataMapper hubSolidMapper<br>
hubSolidMapper SetInputConnection [hubSolid GetOutputPort]<br>
vtkActor hubSolidActor<br>
hubSolidActor SetMapper hubSolidMapper<br>
[hubSolidActor GetProperty] SetColor 0.8 0.8 0.8<br>
[hubSolidActor GetProperty] SetOpacity 0.1<br>
<br>
# Create the solid geometry of the shroud.<br>
vtkStructuredGridGeometryFilter shroudSolid<br>
shroudSolid SetInputConnection [shroudReader GetOutputPort]<br>
vtkPolyDataMapper shroudSolidMapper<br>
shroudSolidMapper SetInputConnection [shroudSolid GetOutputPort]<br>
vtkActor shroudSolidActor<br>
shroudSolidActor SetMapper shroudSolidMapper<br>
[shroudSolidActor GetProperty] SetColor 0.8 0.8 0.8<br>
[shroudSolidActor GetProperty] SetOpacity 0.1<br>
<br>
# Add impeller objects to the rendering window.<br>
#ren1 AddActor impOutlineActor<br>
ren1 AddActor impSolidActor<br>
#ren1 AddActor hubOutlineActor<br>
ren1 AddActor hubSolidActor<br>
#ren1 AddActor shroudOutlineActor<br>
ren1 AddActor shroudSolidActor<br>
ren1 ResetCamera<br>
<br>
#Tell the window manager to completely close the program.<br>
wm protocol .top WM_DELETE_WINDOW ::vtk::cb_exit<br>
<br>
#Remove the VTK window upon startup.<br>
wm withdraw .</span><span style="color:#1F497D"><o:p></o:p></span></p>
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