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<div class="moz-cite-prefix">Hi Bill,<br>
Thanks, this looks pretty much like what I was looking for.<br>
My mistake... I should have mentioned that I am using vtk5.10.0,
in which apparently this method does not exist.<br>
Is there any equivalent method in vtk5.10.0 ?<br>
Thanks<br>
Pof<br>
<br>
Le 30/11/2013 14:15, Bill Lorensen a écrit :<br>
</div>
<blockquote
cite="mid:CADZJ4hNK29yb=-1hegDKkpGZbc9DtwgxtXxsUXo92RFDKSwZcg@mail.gmail.com"
type="cite">
<div dir="ltr">You can set the precision of the output points:
<div><br>
</div>
<div>deci->SetOutputPointsPrecision(vtkAlgorithm::DOUBLE_PRECISION);</div>
<div><br>
</div>
</div>
<div class="gmail_extra"><br>
<br>
<div class="gmail_quote">
On Sat, Nov 30, 2013 at 5:11 AM, pof <span dir="ltr"><<a
moz-do-not-send="true" href="mailto:jd379252@gmail.com"
target="_blank">jd379252@gmail.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0
.8ex;border-left:1px #ccc solid;padding-left:1ex">
<div text="#000000" bgcolor="#FFFFFF"> No answer yet on this
question.<br>
<br>
Just to mention this is a problem for me as I'm working on
meshes expressed in geographical coordinates, i.e.
sometimes having large values (typically over 1e7) which
are unaccurately represented by float variables.<br>
<div><br>
Any idea / comment ?<br>
<br>
<br>
-------- Message original --------
<table cellpadding="0" cellspacing="0" border="0">
<tbody>
<tr>
<th valign="BASELINE" align="RIGHT"
nowrap="nowrap">Sujet: </th>
<td>vtkDecimatePro not fully working with
vtkDouble polydata</td>
</tr>
<tr>
<th valign="BASELINE" align="RIGHT"
nowrap="nowrap">Date : </th>
<td>Wed, 27 Nov 2013 18:58:52 +0100</td>
</tr>
<tr>
<th valign="BASELINE" align="RIGHT"
nowrap="nowrap">De : </th>
<td>pof <a moz-do-not-send="true"
href="mailto:jd379252@gmail.com"
target="_blank"><jd379252@gmail.com></a></td>
</tr>
<tr>
<th valign="BASELINE" align="RIGHT"
nowrap="nowrap">Pour : </th>
<td><a moz-do-not-send="true"
href="mailto:vtkusers@vtk.org" target="_blank">vtkusers@vtk.org</a></td>
</tr>
</tbody>
</table>
<div>
<div class="h5"> <br>
<br>
<pre>Hi vtk'ers,
I have a mesh with points defined as vtkDouble:
vtkPoints *MeshPoints = vtkPoints::New(VTK_DOUBLE);
and with a regular vtkCellArray:
vtkCellArray *MeshCells = vtkCellArray::New();
The mesh is build as usual with:
vtkPolyData *MeshPolyData;
MeshPolyData->SetPoints(MeshPoints);
MeshPolyData->SetPolys(MeshCells);
Now I need to perform a mesh decimation of this mesh, and I'm doing
nothing special:
vtkDecimatePro *deci = vtkDecimatePro::New();
deci->SetInput(MeshPolyData);
deci->SetTargetReduction(DecimationFactor);
deci->PreserveTopologyOn();
deci->BoundaryVertexDeletionOn();
deci->SetMaximumError(VTK_DOUBLE_MAX);
deci->Update();
The problem I am facing is that the resulting decimated mesh is actually
based on vtkFloat:
int type = deci->GetOutput()->GetPoints()->GetDataType();
i.e. type = 10 (VTK_FLOAT), wheras I would have expected 11 (VTK_DOUBLE)
as for the original mesh.
I would have though that the data type of the decimated mesh should have
been the same as the input mesh, which is not the case.
Is this a bug? Or have I missed something?
Thanks in advance for your help/advice.
Pof
</pre>
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