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<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Dear All,<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>I have been using VTK a while now… I have the user
guide (but not currently in my possession). <o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>I am visualising a finite element mesh. I can currently do
lots with it – visualise according to materials, according to pressure
etc. However, I have a new variable associated with each element (cell) that is
error and I want to visualise it. My code (C++) for visualising the materials
and pressure looks like this:<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>void CMeshviewDoc::CreateMeshActor()<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>{<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'> if (CreateLookUpTable)
pPressureMapper->SetLookupTable(pLut) ;<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>
pPressureMapper->SetInput(pGeometry->GetOutput());<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'> pPressureMapper->SetResolveCoincidentTopologyToShiftZBuffer()
;<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'> pPressureMapper->SetResolveCoincidentTopologyZShift(0.02)
;<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>
pMeshPressureActor->SetMapper(pPressureMapper);<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'> if (CreateLookUpTable)
pMaterialMapper->SetLookupTable(pMatLut) ;<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>
pMaterialMapper->SetInput(pGeometry->GetOutput());<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'> pMaterialMapper->SetResolveCoincidentTopologyToShiftZBuffer()
;<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'> pMaterialMapper->SetResolveCoincidentTopologyZShift(0.02)
;<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'> pMaterialMapper->SetScalarModeToUseCellData()
;<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>
pMeshMaterialActor->SetMapper(pMaterialMapper);<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>// Apply the default opacity<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>
(pMeshPressureActor->GetProperty())->SetOpacity(VTK_FULLYOPAQUE) ;<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>
(pMeshMaterialActor->GetProperty())->SetOpacity(VTK_DEFAULT_OPACITY) ;<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>}<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>I initialise the doc/view by creating a VTK file and reading
it in as the window is opened. I use a vtkUnstructuredGridReader and then a vtkGeometryFilter
(pGeometry) to extract the information. In the file I create a dummy pressure
at each point list that I can manipulate and a real list of the materials for
each cell (which I can then colour using the pMatLut). However, I also want to
be able to associate a double precision scalar with each cell (and subsequently
manipulate it). Has anybody any ideas how this can be done?<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Many thanks,<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<div>
<p class=MsoNormal><b><font size=3 color=navy face=Arial><span lang=FR
style='font-size:12.0pt;font-family:Arial;color:navy;font-weight:bold'>James C
Robinson</span></font></b><b><font size=2 color=navy face=Arial><span lang=FR
style='font-size:10.0pt;font-family:Arial;color:navy;font-weight:bold'>, </span></font></b><b><font
color=navy><span lang=FR style='color:navy;font-weight:bold'><o:p></o:p></span></font></b></p>
<p class=MsoNormal><b><font size=3 color=navy face=Wingdings><span
style='font-size:12.0pt;font-family:Wingdings;color:navy;font-weight:bold'>+</span></font></b><b><font
color=navy><span lang=FR style='color:navy;font-weight:bold'> 42
Rivergrove</span></font></b><b><font size=2 color=navy face=Arial><span
lang=FR style='font-size:10.0pt;font-family:Arial;color:navy;font-weight:bold'>,</span></font></b><b><font
color=navy><span lang=FR style='color:navy;font-weight:bold'><o:p></o:p></span></font></b></p>
<p class=MsoNormal><b><font size=2 color=navy face=Arial><span lang=FR
style='font-size:10.0pt;font-family:Arial;color:navy;font-weight:bold'>
</span></font></b><b><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial;font-weight:bold'><ns0:City w:insAuthor="Jim"
w:insDate="2005-08-05T11:50:00Z" w:endInsAuthor="Jim"
w:endInsDate="2005-08-05T11:50:00Z"><ns0:place w:insAuthor="Jim"
w:insDate="2005-08-05T11:50:00Z" w:endInsAuthor="Jim"
w:endInsDate="2005-08-05T11:50:00Z"><ns0:City w:insAuthor="Jim"
w:insDate="2005-08-05T11:50:00Z" w:endInsAuthor="Jim"
w:endInsDate="2005-08-05T11:50:00Z"><ns0:place w:insAuthor="Jim"
w:insDate="2005-08-05T11:50:00Z" w:endInsAuthor="Jim"
w:endInsDate="2005-08-05T11:50:00Z"><font color=navy><span lang=FR
style='color:navy'>Glanmire</span></font></ns0:place></ns0:City></ns0:place></ns0:City></span></font></b><b><font
size=2 color=navy face=Arial><span lang=FR style='font-size:10.0pt;font-family:
Arial;color:navy;font-weight:bold'>,</span></font></b><b><font color=navy><span
lang=FR style='color:navy;font-weight:bold'><o:p></o:p></span></font></b></p>
<p class=MsoNormal><b><font size=2 color=navy face=Arial><span lang=FR
style='font-size:10.0pt;font-family:Arial;color:navy;font-weight:bold'>
</span></font></b><b><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy;font-weight:bold'>Co. </span></font></b><b><font
size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial;font-weight:
bold'><ns0:City w:insAuthor="Jim" w:insDate="2005-08-05T11:50:00Z"
w:endInsAuthor="Jim" w:endInsDate="2005-08-05T11:50:00Z"><ns0:place
w:insAuthor="Jim" w:insDate="2005-08-05T11:50:00Z" w:endInsAuthor="Jim"
w:endInsDate="2005-08-05T11:50:00Z"><ns0:City w:insAuthor="Jim"
w:insDate="2005-08-05T11:50:00Z" w:endInsAuthor="Jim"
w:endInsDate="2005-08-05T11:50:00Z"><ns0:place w:insAuthor="Jim"
w:insDate="2005-08-05T11:50:00Z" w:endInsAuthor="Jim"
w:endInsDate="2005-08-05T11:50:00Z"><st1:City w:st="on"><st1:place w:st="on"><font
color=navy><span style='color:navy'>Cork</span></font></st1:place></st1:City></ns0:place></ns0:City></ns0:place></ns0:City><font
color=navy><span style='color:navy'>,</span></font></span></font><font
color=navy><span style='color:navy'><o:p></o:p></span></font></b></p>
<p class=MsoNormal><b><font size=2 color=navy face=Arial><span
style='font-size:10.0pt;font-family:Arial;color:navy;font-weight:bold'>
</span></font></b><b><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial;font-weight:bold'><ns0:place w:insAuthor="Jim"
w:insDate="2005-08-05T11:50:00Z" w:endInsAuthor="Jim"
w:endInsDate="2005-08-05T11:50:00Z"><ns0:place w:insAuthor="Jim"
w:insDate="2005-08-05T11:50:00Z" w:endInsAuthor="Jim"
w:endInsDate="2005-08-05T11:50:00Z"><st1:place w:st="on"><font color=navy><span
style='color:navy'>Eire</span></font></st1:place></ns0:place></ns0:place></span></font><font
color=navy><span style='color:navy'><o:p></o:p></span></font></b></p>
<p class=MsoNormal><b><font size=3 color=navy face="Wingdings 2"><span
style='font-size:12.0pt;font-family:"Wingdings 2";color:navy;font-weight:bold'>'</span></font></b><b><font
color=navy face=Arial><span style='font-family:Arial;color:navy;font-weight:
bold'> +353 21 4822028</span></font><font
color=navy><span style='color:navy'><o:p></o:p></span></font></b></p>
<p class=MsoNormal><b><font size=3 color=navy face="Times New Roman"><span
style='font-size:12.0pt;color:navy;font-weight:bold'>
+353 87 2393010<o:p></o:p></span></font></b></p>
<p class=MsoNormal><b><font size=3 color=navy face=Wingdings><span
style='font-size:12.0pt;font-family:Wingdings;color:navy;font-weight:bold'>-</span></font></b><b><font
color=navy face=Arial><span style='font-family:Arial;color:navy;font-weight:
bold'> </span></font><ns0:PersonName w:insAuthor="Jim"
w:insDate="2005-08-05T11:50:00Z" w:endInsAuthor="Jim"
w:endInsDate="2005-08-05T11:50:00Z"><ns0:PersonName w:insAuthor="Jim"
w:insDate="2005-08-05T11:50:00Z" w:endInsAuthor="Jim"
w:endInsDate="2005-08-05T11:50:00Z"></ns0:PersonName><font color=blue><span
style='color:blue'><a href="mailto:jrobinson@eircom.net">jrobinson@eircom.net<font
color=black><span style='color:windowtext;text-decoration:none'></ns0:PersonName></span></font><font
color=black><span style='color:windowtext;text-decoration:none'>></span></font></a></span></font><font
color=navy face=Arial><span style='font-family:Arial;color:navy'> </span></font><font
size=2 color=navy face=Arial><span style='font-size:10.0pt;font-family:Arial;
color:navy;font-weight:normal'><o:p></o:p></span></font></b></p>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>
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