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<div class=Section1>
<p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>It should be easier if you build directly a polydata …<o:p></o:p></span></p>
<p class=MsoNormal><span class=apple-style-span><span lang=EN-US
style='font-size:7.5pt;font-family:"Monaco","serif"'># Create an unstructured
grids containing a triangle cell.</span></span><span lang=EN-US><o:p></o:p></span></p>
<p class=MsoNormal><span class=apple-style-span><span lang=EN-US
style='font-size:7.5pt;font-family:"Monaco","serif"'>vtkPoints trianglePoints</span></span><span
lang=EN-US><o:p></o:p></span></p>
<p class=MsoNormal><span class=apple-style-span><span lang=EN-US
style='font-size:7.5pt;font-family:"Monaco","serif"'> trianglePoints
SetNumberOfPoints 3</span></span><span lang=EN-US><o:p></o:p></span></p>
<p class=MsoNormal><span class=apple-style-span><span lang=EN-US
style='font-size:7.5pt;font-family:"Monaco","serif"'> trianglePoints
InsertPoint 0 0 0 0</span></span><span lang=EN-US><o:p></o:p></span></p>
<p class=MsoNormal><span class=apple-style-span><span lang=EN-US
style='font-size:7.5pt;font-family:"Monaco","serif"'> trianglePoints
InsertPoint 1 1 0 0</span></span><span lang=EN-US><o:p></o:p></span></p>
<p class=MsoNormal><span class=apple-style-span><span lang=EN-US
style='font-size:7.5pt;font-family:"Monaco","serif"'> trianglePoints
InsertPoint 2 .5 .5 0</span></span><span lang=EN-US><o:p></o:p></span></p>
<p class=MsoNormal><span class=apple-style-span><span lang=EN-US
style='font-size:7.5pt;font-family:"Monaco","serif"'>vtkTriangle aTriangle</span></span><span
lang=EN-US><o:p></o:p></span></p>
<p class=MsoNormal><span class=apple-style-span><span lang=EN-US
style='font-size:7.5pt;font-family:"Monaco","serif"'> [aTriangle
GetPointIds] SetId 0 0</span></span><span lang=EN-US><o:p></o:p></span></p>
<p class=MsoNormal><span class=apple-style-span><span lang=EN-US
style='font-size:7.5pt;font-family:"Monaco","serif"'> [aTriangle
GetPointIds] SetId 1 1</span></span><span lang=EN-US><o:p></o:p></span></p>
<p class=MsoNormal><span class=apple-style-span><span lang=EN-US
style='font-size:7.5pt;font-family:"Monaco","serif"'> [aTriangle
GetPointIds] SetId 2 2</span></span><span lang=EN-US><o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>vtkPolyData aTrianglePoly<o:p></o:p></span></p>
<p class=MsoNormal><span class=apple-style-span><span lang=EN-US
style='font-size:7.5pt;font-family:"Monaco","serif"'> aTrianglePoly
Allocate 1 1</span></span><span lang=EN-US><o:p></o:p></span></p>
<p class=MsoNormal><span class=apple-style-span><span lang=EN-US
style='font-size:7.5pt;font-family:"Monaco","serif"'> aTrianglePoly
InsertNextCell [aTriangle GetCellType] [aTriangle GetPointIds]</span></span><span
lang=EN-US><o:p></o:p></span></p>
<p class=MsoNormal><span class=apple-style-span><span lang=EN-US
style='font-size:7.5pt;font-family:"Monaco","serif"'> </span></span><span
class=apple-style-span><span style='font-size:7.5pt;font-family:"Monaco","serif"'>aTrianglePoly
SetPoints trianglePoints</span></span><o:p></o:p></p>
<p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'> <o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Fred.<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<div>
<div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0cm 0cm 0cm'>
<p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>De :</span></b><span
style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>
vtkusers-bounces@vtk.org [mailto:vtkusers-bounces@vtk.org] <b>De la part de</b>
Elvis Dowson<br>
<b>Envoyé :</b> jeudi 9 octobre 2008 07:13<br>
<b>À :</b> VTK Users<br>
<b>Objet :</b> [vtkusers] How to extract poly data from an unstructured
grid<o:p></o:p></span></p>
</div>
</div>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>Hi,<o:p></o:p></p>
<div>
<p class=MsoNormal> I have an example code
fragment shown below. How can I extract vtkPolyData from the
vtkUnstructuredGrid?<o:p></o:p></p>
</div>
<div>
<p class=MsoNormal><o:p> </o:p></p>
</div>
<div>
<div>
<p class=MsoNormal><span class=apple-style-span><span style='font-size:7.5pt;
font-family:"Monaco","serif"'># Create an unstructured grids containing a
triangle cell.</span></span><o:p></o:p></p>
</div>
<div>
<p class=MsoNormal><span class=apple-style-span><span style='font-size:7.5pt;
font-family:"Monaco","serif"'>vtkPoints trianglePoints</span></span><o:p></o:p></p>
</div>
<div>
<p class=MsoNormal><span class=apple-style-span><span style='font-size:7.5pt;
font-family:"Monaco","serif"'> trianglePoints SetNumberOfPoints 3</span></span><o:p></o:p></p>
</div>
<div>
<p class=MsoNormal><span class=apple-style-span><span style='font-size:7.5pt;
font-family:"Monaco","serif"'> trianglePoints InsertPoint 0 0 0 0</span></span><o:p></o:p></p>
</div>
<div>
<p class=MsoNormal><span class=apple-style-span><span style='font-size:7.5pt;
font-family:"Monaco","serif"'> trianglePoints InsertPoint 1 1 0 0</span></span><o:p></o:p></p>
</div>
<div>
<p class=MsoNormal><span class=apple-style-span><span style='font-size:7.5pt;
font-family:"Monaco","serif"'> trianglePoints InsertPoint 2 .5 .5 0</span></span><o:p></o:p></p>
</div>
<div>
<p class=MsoNormal><span class=apple-style-span><span style='font-size:7.5pt;
font-family:"Monaco","serif"'>vtkTriangle aTriangle</span></span><o:p></o:p></p>
</div>
<div>
<p class=MsoNormal><span class=apple-style-span><span style='font-size:7.5pt;
font-family:"Monaco","serif"'> [aTriangle GetPointIds] SetId 0 0</span></span><o:p></o:p></p>
</div>
<div>
<p class=MsoNormal><span class=apple-style-span><span style='font-size:7.5pt;
font-family:"Monaco","serif"'> [aTriangle GetPointIds] SetId 1 1</span></span><o:p></o:p></p>
</div>
<div>
<p class=MsoNormal><span class=apple-style-span><span style='font-size:7.5pt;
font-family:"Monaco","serif"'> [aTriangle GetPointIds] SetId 2 2</span></span><o:p></o:p></p>
</div>
<div>
<p class=MsoNormal><span class=apple-style-span><span style='font-size:7.5pt;
font-family:"Monaco","serif"'>vtkUnstructuredGrid aTriangleGrid</span></span><o:p></o:p></p>
</div>
<div>
<p class=MsoNormal><span class=apple-style-span><span style='font-size:7.5pt;
font-family:"Monaco","serif"'> aTriangleGrid Allocate 1 1</span></span><o:p></o:p></p>
</div>
<div>
<p class=MsoNormal><span class=apple-style-span><span style='font-size:7.5pt;
font-family:"Monaco","serif"'> aTriangleGrid InsertNextCell
[aTriangle GetCellType] [aTriangle GetPointIds]</span></span><o:p></o:p></p>
</div>
<div>
<p class=MsoNormal><span class=apple-style-span><span style='font-size:7.5pt;
font-family:"Monaco","serif"'> aTriangleGrid SetPoints
trianglePoints</span></span><o:p></o:p></p>
</div>
<div>
<p class=MsoNormal><o:p> </o:p></p>
</div>
<div>
<p class=MsoNormal>I want to get a vtkPolyData object so that I can pass it
along to vtkPolyDataNormals.<o:p></o:p></p>
</div>
<div>
<p class=MsoNormal><o:p> </o:p></p>
</div>
<div>
<p class=MsoNormal>Best regards,<o:p></o:p></p>
</div>
<div>
<p class=MsoNormal><o:p> </o:p></p>
</div>
<div>
<p class=MsoNormal>Elvis Dowson<o:p></o:p></p>
</div>
</div>
</div>
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