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<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>Hi Users,</span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'> </span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>I have subsequently noticed that the quads
did not use the same point id’s as the hexes but different point id’s
with identical coordinates. Sorry for any inconvenience – I will park
this problem for the moment.</span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'> </span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>John.</span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'> </span></font></p>
<p class=MsoNormal style='margin-left:36.0pt'><font size=2 face=Tahoma><span
style='font-size:10.0pt;font-family:Tahoma'>-----Original Message-----<br>
<b><span style='font-weight:bold'>From:</span></b> vtkusers-bounces@vtk.org
[mailto:vtkusers-bounces@vtk.org] <b><span style='font-weight:bold'>On Behalf
Of </span></b>John Platt<br>
<b><span style='font-weight:bold'>Sent:</span></b> 25 May 2004 23:19<br>
<b><span style='font-weight:bold'>To:</span></b> vtkusers@vtk.org<br>
<b><span style='font-weight:bold'>Subject:</span></b> [vtkusers]
vtkDataSetSurfaceFilter 1.30 - 1.35 : undesired sideeffects with 2-d cells on
3-d faces</span></font></p>
<p class=MsoNormal style='margin-left:36.0pt'><font size=3
face="Times New Roman"><span style='font-size:12.0pt'> </span></font></p>
<p class=MsoNormal style='margin-left:36.0pt'><font size=2 face=Arial><span
lang=EN-GB style='font-size:10.0pt;font-family:Arial'>Hi users,</span></font></p>
<p class=MsoNormal style='margin-left:36.0pt'><font size=2 face=Arial><span
lang=EN-GB style='font-size:10.0pt;font-family:Arial'> </span></font></p>
<p class=MsoNormal style='margin-left:36.0pt'><font size=2 face=Arial><span
lang=EN-GB style='font-size:10.0pt;font-family:Arial'>The changes to
vtkDataSetSurfaceFilter from 1.30 to 1.35 have had some undesired side effects
with the display of quads attached to hex faces (quads coincident with faces
using the same point id’s). In version 1.30 it appears that all the 2-d
cells were drawn after the 3-d cells so the quads were never hidden by the
hex’s. In version 1.35 this discipline appears to have changed with some
of the 2-d cells shown but others obscured by the 3-d cells.</span></font></p>
<p class=MsoNormal style='margin-left:36.0pt'><font size=2 face=Arial><span
lang=EN-GB style='font-size:10.0pt;font-family:Arial'> </span></font></p>
<p class=MsoNormal style='margin-left:36.0pt'><font size=2 face=Arial><span
lang=EN-GB style='font-size:10.0pt;font-family:Arial'>Does anybody know how I
can arrange to draw the faces of all the 3-d cells first, followed by all the
2-d cells? Should this be the responsibility of the application developer or
VTK?</span></font></p>
<p class=MsoNormal style='margin-left:36.0pt'><font size=2 face=Arial><span
lang=EN-GB style='font-size:10.0pt;font-family:Arial'> </span></font></p>
<p class=MsoNormal style='margin-left:36.0pt'><font size=2 face=Arial><span
lang=EN-GB style='font-size:10.0pt;font-family:Arial'>For those who are
interested, this is important for checking FE-models where boundary elements
are connected to finite elements or where there is a transition from 3-d to 2-d
elements.</span></font></p>
<p class=MsoNormal style='margin-left:36.0pt'><font size=2 face=Arial><span
lang=EN-GB style='font-size:10.0pt;font-family:Arial'> </span></font></p>
<p class=MsoNormal style='margin-left:36.0pt'><font size=2 face=Arial><span
lang=EN-GB style='font-size:10.0pt;font-family:Arial'>Thanks in advance for
your comments and suggestions.</span></font></p>
<p class=MsoNormal style='margin-left:36.0pt'><font size=2 face=Arial><span
lang=EN-GB style='font-size:10.0pt;font-family:Arial'> </span></font></p>
<p class=MsoNormal style='margin-left:36.0pt'><font size=2 face=Arial><span
lang=EN-GB style='font-size:10.0pt;font-family:Arial'>John.</span></font></p>
<p class=MsoNormal style='margin-left:36.0pt'><font size=2 face=Arial><span
lang=EN-GB style='font-size:10.0pt;font-family:Arial'> </span></font></p>
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face="Times New Roman"><span lang=EN-GB style='font-size:12.0pt'> </span></font></p>
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