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<DIV><SPAN class=704511411-25062004><FONT face=Arial color=#0000ff
size=2>Hi,</FONT></SPAN></DIV>
<DIV><SPAN class=704511411-25062004><FONT face=Arial color=#0000ff
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=704511411-25062004><FONT face=Arial color=#0000ff
size=2>I may be able to help you a little bit. First, you have to let
paraview know that </FONT></SPAN></DIV>
<DIV><SPAN class=704511411-25062004><FONT face=Arial color=#0000ff size=2>you
want to use the vtkDelaunay2D or 3D filter. This is done permanently (there are
</FONT></SPAN></DIV>
<DIV><SPAN class=704511411-25062004><FONT face=Arial color=#0000ff size=2>some
instances in the mailing list where people talk about this) for example
</FONT></SPAN></DIV>
<DIV><SPAN class=704511411-25062004><FONT face=Arial color=#0000ff size=2>by
creating a xml-file with the content (below) in a directory called e.g.
"extensions"</FONT></SPAN></DIV>
<DIV><SPAN class=704511411-25062004><FONT face=Arial color=#0000ff size=2>in
your paraview installation directory. Then you have to point the
environment</FONT></SPAN></DIV>
<DIV><SPAN class=704511411-25062004><FONT face=Arial color=#0000ff
size=2>variable PV_INTERFACE_PATH to that file location. If you only want to use
this</FONT></SPAN></DIV>
<DIV><SPAN class=704511411-25062004><FONT face=Arial color=#0000ff size=2>filter
sporadically, then I think it is enough to "import package" the
xml-file.</FONT></SPAN></DIV>
<DIV><SPAN class=704511411-25062004><FONT face=Arial color=#0000ff size=2>This
should make the filter available in paraview (given the right data format, I
think).</FONT></SPAN></DIV>
<DIV><SPAN class=704511411-25062004><FONT face=Arial color=#0000ff size=2>I am
not sure what the structure of your VRML point cloud is, I use polydata such as
this example</FONT></SPAN></DIV>
<DIV><SPAN class=704511411-25062004><FONT face=Arial color=#0000ff
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=704511411-25062004><FONT face=Arial color=#0000ff size=2># vtk
DataFile Version 2.0<BR>Example data<BR>ASCII <BR>DATASET POLYDATA<BR>POINTS
1000 float<BR>11.71441 -0.29446 -0.06840<BR>11.51223 -0.26540
-0.00054<BR>11.31058 -0.24298 0.00603<BR>11.10758 -0.28167 0.00724<BR>10.90453
-0.27109 0.00207</FONT></SPAN></DIV>
<DIV><SPAN class=704511411-25062004><FONT face=Arial color=#0000ff
size=2>.....</FONT></SPAN></DIV>
<DIV><SPAN class=704511411-25062004><FONT face=Arial color=#0000ff
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=704511411-25062004><FONT face=Arial color=#0000ff
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=704511411-25062004><FONT face=Arial color=#0000ff size=2>and it
works fine for me. If you consult the vtk description of the Delaunay
filter, that might help.</FONT></SPAN></DIV>
<DIV><SPAN class=704511411-25062004><FONT face=Arial color=#0000ff size=2>You
can then play around with the parameters in the usual way.</FONT></SPAN></DIV>
<DIV><SPAN class=704511411-25062004><FONT face=Arial color=#0000ff
size=2>Alternatively, I sometimes use MayaVi, where you simply enter
vtkDelaunay2D in the </FONT></SPAN></DIV>
<DIV><SPAN class=704511411-25062004><FONT face=Arial color=#0000ff
size=2>UserDefined Filter window pop-up. Worth trying. </FONT></SPAN></DIV>
<DIV><SPAN class=704511411-25062004><FONT face=Arial color=#0000ff
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=704511411-25062004><FONT face=Arial color=#0000ff size=2>Hope
that helps.</FONT></SPAN></DIV>
<DIV><SPAN class=704511411-25062004><FONT face=Arial color=#0000ff
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=704511411-25062004><FONT face=Arial color=#0000ff
size=2>Axel</FONT></SPAN></DIV>
<DIV><SPAN class=704511411-25062004><FONT face=Arial color=#0000ff
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=704511411-25062004><FONT face=Arial color=#0000ff
size=2>------------------------------------------------------------------------------put
this in your xml file------------------------</FONT></SPAN></DIV>
<DIV><SPAN class=704511411-25062004><FONT face=Arial color=#0000ff
size=2><ModuleInterfaces><BR><Module name="Delaunay3D"
root_name="Delaunay3D" module_type="Filter"><BR> <Filter
class="vtkDelaunay3D"><BR> <Input name="Input"
class="vtkPointSet"/><BR> </Filter><BR> <InputMenu
label="Input" help="Delaunay Triangulation"/><BR> <VectorEntry
variable="Tolerance" trace_name="Tolerance" type="float" help="The tolerance"
default_value="0.001" data_range="0. 10.0"/><BR> <VectorEntry
variable="Alpha" trace_name="Alpha" type="float" help="The Alpha value"
default_value="2.0" data_range="0. 10.0"/><BR> <VectorEntry
variable="Offset" trace_name="Offset" type="float" help="The Offset value"
default_value="2.5" data_range="0. 10.0"/><BR> <LabeledToggle
variable="BoundingTriangulation" trace_name="BoundingTriangulation"
help="controls whether bounding <BR> triangulation points (and associated
triangles) are included in the output"
default_value="0"/><BR></Module><BR><Module name="Delaunay2D"
root_name="Delaunay2D" module_type="Filter"><BR> <Filter
class="vtkDelaunay2D"><BR> <Input name="Input"
class="vtkPointSet"/><BR> </Filter><BR> <InputMenu
label="Input" help="Delaunay Triangulation"/><BR> <VectorEntry
variable="Tolerance" trace_name="Tolerance" type="float" help="The tolerance"
default_value="0.001" data_range="0. 10.0"/><BR> <VectorEntry
variable="Alpha" trace_name="Alpha" type="float" help="The Alpha value"
default_value="2.0" data_range="0. 10.0"/><BR> <VectorEntry
variable="Offset" trace_name="Offset" type="float" help="The Offset value"
default_value="2.5" data_range="0. 10.0"/><BR> <LabeledToggle
variable="BoundingTriangulation" trace_name="BoundingTriangulation"
help="controls whether bounding <BR> triangulation points (and associated
triangles) are included in the output"
default_value="0"/><BR></Module><BR></ModuleInterfaces><BR></FONT></SPAN></DIV>
<DIV><SPAN class=704511411-25062004><FONT face=Arial color=#0000ff
size=2>--------------------------------------------------------------------------------------------------------------------------------------</FONT></SPAN></DIV>
<DIV><SPAN class=704511411-25062004><FONT face=Arial color=#0000ff
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=704511411-25062004><FONT face=Arial color=#0000ff
size=2></FONT></SPAN> </DIV>
<BLOCKQUOTE dir=ltr style="MARGIN-RIGHT: 0px">
<DIV></DIV>
<DIV class=OutlookMessageHeader lang=en-us dir=ltr align=left><FONT
face=Tahoma size=2>-----Original Message-----<BR><B>From:</B>
paraview-bounces@paraview.org [mailto:paraview-bounces@paraview.org] <B>On
Behalf Of </B>Roberto Angeletti<BR><B>Sent:</B> 25 June 2004
13:02<BR><B>To:</B> paraview@paraview.org<BR><B>Subject:</B> [Paraview] Tin
creation from Vrml PointSet Cloud<BR><BR></FONT></DIV>
<DIV><FONT face=Arial size=2>I need to perform a Delaunay triangulation on my
Vrml PointSet Cloud Data,</FONT></DIV>
<DIV><FONT face=Arial size=2>to obtain a Tin surface.</FONT></DIV>
<DIV><FONT face=Arial size=2>What are the steps to do this with ParaView
?</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Best Regards</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Roberto
Angeletti</FONT></DIV></BLOCKQUOTE></BODY></HTML>