<div dir="ltr">So I have done the following test. I have created a xmf file of a grid in cylindrical coordinates &quot;grid3d_cyl.xmf&quot; specified as Topology Type 3DSMesh and Geometry Type XYZ. That is a full 3D array is written:<div>
<br></div><div><div>&lt;?xml version=&quot;1.0&quot; ?&gt;</div><div>&lt;!DOCTYPE Xdmf SYSTEM &quot;Xdmf.dtd&quot; []&gt;</div><div>&lt;Xdmf Version=&quot;2.2&quot;&gt;</div><div>&lt;Domain&gt;</div><div>&lt;Grid GridType=&quot;Uniform&quot;&gt;</div>
<div>&lt;Topology TopologyType=&quot;3DSMesh&quot; Dimensions=&quot;    30    70    40&quot;/&gt;</div><div>&lt;Geometry GeometryType=&quot;XYZ&quot;&gt;</div><div>&lt;DataItem Dimensions=&quot;84000 3&quot; NumberType=&quot;Float&quot; Precision=&quot;4&quot; Format=&quot;XML&quot;&gt;</div>
</div><div>....</div><div>....</div><div>....</div><div><div>&lt;/DataItem&gt;</div><div>&lt;/Geometry&gt;</div><div>&lt;/Grid&gt;</div><div>&lt;/Domain&gt;</div><div>&lt;/Xdmf&gt;</div></div><div><br></div><div style>The grid is 30x70x40 and the file &quot;grid3d_cyl.xmf&quot; is 15.8 MB large. When I read this into Paraview the information windows shows it uses 0.98MB of memory.</div>
<div style><br></div><div style>I then create a grid in cartesian coordinates &quot;grid3d_car&quot; specified as Topology Type 3DRectMesh and Geometry Type VXVYVZ. Here instead of the full 3D array I write thee 1D arrays, one for each coordinates. The file looks like:</div>
<div style><br></div><div style><div>&lt;?xml version=&quot;1.0&quot; ?&gt;</div><div>&lt;!DOCTYPE Xdmf SYSTEM &quot;Xdmf.dtd&quot; []&gt;</div><div>&lt;Xdmf Version=&quot;2.2&quot;&gt;</div><div>&lt;Domain&gt;</div><div>
&lt;Grid GridType=&quot;Uniform&quot;&gt;</div><div>&lt;Topology TopologyType=&quot;3DRectMesh&quot; Dimensions=&quot;    30    70    40&quot;/&gt;</div><div>&lt;Geometry GeometryType=&quot;VXVYVZ&quot;&gt;</div><div>&lt;DataItem Dimensions=&quot;   40&quot; NumberType=&quot;Float&quot; Precision=&quot;4&quot; Format=&quot;XML&quot;&gt;</div>
<div>   0.0000   1.0000   2.0000   3.0000   4.0000   5.0000   6.0000   7.0000   8.0000   9.0000  10.0000  11.0000  12.0000  13.0000  14.0000  15.0000  16.0000  17.0000  18.0000  19.0000  20.0000  21.0000  22.0000  23.0000  24.0000  25.0000  26.0000  27.0000  28.0000  29.0000  30.0000  31.0000  32.0000  33.0000  34.0000  35.0000  36.0000  37.0000  38.0000  39.0000</div>
<div>&lt;/DataItem&gt;</div><div>&lt;DataItem Dimensions=&quot;   70&quot; NumberType=&quot;Float&quot; Precision=&quot;4&quot; Format=&quot;XML&quot;&gt;</div><div>   0.0000   0.0911   0.1821   0.2732   0.3642   0.4553   0.5464   0.6374   0.7285   0.8195   0.9106   1.0017   1.0927   1.1838   1.2748   1.3659   1.4570   1.5480   1.6391   1.7302   1.8212   1.9123   2.0033   2.0944   2.1855   2.2765   2.3676   2.4586   2.5497   2.6408   2.7318   2.8229   2.9139   3.0050   3.0961   3.1871   3.2782   3.3692   3.4603   3.5514   3.6424   3.7335   3.8245   3.9156   4.0067   4.0977   4.1888   4.2799   4.3709   4.4620   4.5530   4.6441   4.7352   4.8262   4.9173   5.0083   5.0994   5.1905   5.2815   5.3726   5.4636   5.5547   5.6458   5.7368   5.8279   5.9189   6.0100   6.1011   6.1921   6.2832</div>
<div>&lt;/DataItem&gt;</div><div>&lt;DataItem Dimensions=&quot;   30&quot; NumberType=&quot;Float&quot; Precision=&quot;4&quot; Format=&quot;XML&quot;&gt;</div><div>   1.0000   2.0000   3.0000   4.0000   5.0000   6.0000   7.0000   8.0000   9.0000  10.0000  11.0000  12.0000  13.0000  14.0000  15.0000  16.0000  17.0000  18.0000  19.0000  20.0000  21.0000  22.0000  23.0000  24.0000  25.0000  26.0000  27.0000  28.0000  29.0000  30.0000</div>
<div>&lt;/DataItem&gt;</div><div>&lt;/Geometry&gt;</div><div>&lt;/Grid&gt;</div><div>&lt;/Domain&gt;</div><div>&lt;/Xdmf&gt;</div><div><br></div><div style>The gris is still 30x70x40 but the file &quot;grid3d_car.xmf&quot; is more compact, it is only 2.2 KB in size. When I read it into Paraview the information windows shows it uses only 0.003MB. So far so good, I end up saving space both on the hard drive and in memory.</div>
<div style><br></div><div style>I then convert the cartesian grid to cylindrical coordinates using the CleantoGrid Filter and also a programmable Filter:</div><div style><br></div><div style>
<p style="margin:0px">pdi = self.GetInput()</p>
<p style="margin:0px">pdo = self.GetOutput()</p>
<p style="margin:0px">newPoints = vtk.vtkPoints()</p>
<p style="margin:0px">numPoints = pdi.GetNumberOfPoints()</p>
<p style="margin:0px">for i in range(0, numPoints):</p>
<p style="margin:0px">  coord = pdi.GetPoint(i)</p>
<p style="margin:0px">  x, y, z = coord[:3]</p>
<p style="margin:0px">  r = x * cos(y)</p>
<p style="margin:0px">  t = x * sin(y)</p>
<p style="margin:0px">  newPoints.InsertPoint(i, r, t, z)</p>
<p style="margin:0px">pdo.SetPoints(newPoints)</p><p style="margin:0px"><br></p><p style="margin:0px">The information window in Paraview shows that The CleanToGrid Filter uses 7.2 MB and the ProgrammableFilter another 7.1MB so in total the cartesian to cylindrical conversion uses 14.3 MB. That&#39;s a huge memory penalty. Here&#39;s a summary:</p>
<p style="margin:0px"><br></p><p style="margin:0px">File                     Size       Memory</p><p style="margin:0px">grid3d_cyl.xmf   15.8MB    0.98MB</p></div></div><div style>grid3d_car.xmf    2.2KB     0.003MB</div>
<div style>CleanToGrid          -           7.2MB</div><div style>Programmable       -           7.1MB</div><div style><br></div><div style>Since both grids contain the exact same coordinate information I would expect the approach of converting the grid from cartesian to cylindrical to not take more than 0.98MB of memory, instead it takes 14.3MB. Does it make any sense? Am I doing sth wrong? Can I avoid the memory penalty?</div>
<div style><br></div><div style>Thank you,</div><div style><br></div><div style>Nikos</div></div><div class="gmail_extra"><br><br><div class="gmail_quote">On Fri, Apr 5, 2013 at 3:48 AM, Felipe Bordeu <span dir="ltr">&lt;<a href="mailto:felipe.bordeu@ec-nantes.fr" target="_blank">felipe.bordeu@ec-nantes.fr</a>&gt;</span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
  
    
  
  <div bgcolor="#FFFFFF" text="#000000">
    <div>By &quot;pipelines&quot;, I think you want to say
      &quot;filters&quot;. I do not know how to delete intermediary results. <br>
      One way is to apply a filter and then save the result (&quot;File&quot;-&gt;
      &quot;Save Data&quot;). So you can open it later without the deed to
      recreate the hole pipeline.<br>
      <br>
      Felipe<br>
      <br>
      Le 04/04/2013 19:51, Nikolaos Beratlis a écrit :<br>
    </div><div><div class="h5">
    <blockquote type="cite">
      <div dir="ltr">Hi Felipe,
        <div><br>
        </div>
        <div>When I try this script to transform from cartesian to
          cylindrical coordinates after I have applied the CleantoGrid
          Filter:</div>
        <div><br>
        </div>
        <div>
          <div style="font-family:arial,sans-serif;font-size:13px">
            <div style="margin:0px">pdi = self.GetInput()</div>
            <div style="margin:0px">pdo = self.GetOutput()</div>
            <div style="margin:0px">newPoints = vtk.vtkPoints()</div>
            <div style="margin:0px">numPoints = pdi.GetNumberOfPoints()</div>
            <div style="margin:0px">for i in range(0, numPoints):</div>
            <div style="margin:0px">coord = pdi.GetPoint(i)</div>
            <div style="margin:0px">x, y, z = coord[:3]</div>
            <div style="margin:0px">r = x * cos(y)</div>
            <div style="margin:0px">
              t = x * sin(y)</div>
            <div style="margin:0px">newPoints.InsertPoint(i, r, t, z)</div>
            <div style="margin:0px">pdo.SetPoints(newPoints)</div>
          </div>
          <div style="font-family:arial,sans-serif;font-size:13px;margin:0px">pdo.GetPointData().AddArray(pdi.GetPointData().GetArray(0))</div>
          <div style="font-family:arial,sans-serif;font-size:13px;margin:0px">pdo.GetPointData().AddArray(pdi.GetPointData().GetArray(1))</div>
          <div style="font-family:arial,sans-serif;font-size:13px;margin:0px">pdo.GetPointData().AddArray(pdi.GetPointData().GetArray(2))</div>
        </div>
        <div style="font-family:arial,sans-serif;font-size:13px;margin:0px"><br>
        </div>
        <div style="font-family:arial,sans-serif;font-size:13px;margin:0px">it
          creates two more pipelines, one for CleantoGrid and one for
          Programmable Filter. Both pipelines are linked to the original
          pipeline and both pipelines require the same memory as the
          original pipeline. Is there a way to to delete the previous
          two pipelines (original with cartesian coordinates and
          cleantoGrid) so that I only use one memory amount and not
          three?</div>
        <div style="font-family:arial,sans-serif;font-size:13px;margin:0px"><br>
        </div>
        <div style="font-family:arial,sans-serif;font-size:13px;margin:0px">Nikos</div>
      </div>
      <div class="gmail_extra"><br>
        <br>
        <div class="gmail_quote">
          On Wed, Apr 3, 2013 at 12:05 PM, Felipe Bordeu <span dir="ltr">&lt;<a href="mailto:felipe.bordeu@ec-nantes.fr" target="_blank">felipe.bordeu@ec-nantes.fr</a>&gt;</span>
          wrote:<br>
          <blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
            <div bgcolor="#FFFFFF" text="#000000">
              <div>you need to copy the point data: add this line to the
                end of your script:<br>
                <br>
                <p style="margin-top:0px;margin-bottom:0px;margin-left:0px;margin-right:0px;text-indent:0px">pdo.GetPointData().AddArray(pdi.GetPointData().GetArray(0))</p>
                <br>
                this will work only for one field, you can put this line
                inside a loop to add all the pointdata.<br>
                <br>
                Felipe<br>
                <br>
                Le 03/04/2013 17:59, Nikolaos Beratlis a écrit :<br>
              </div>
              <div>
                <div>
                  <blockquote type="cite">
                    <div dir="ltr">I did and it shows me the transformed
                      grid, but the ProgrammableFilter doesn&#39;t contain
                      the variable var. I cannot plot contours. Should I
                      change the script?</div>
                    <div class="gmail_extra"><br>
                      <br>
                      <div class="gmail_quote"> On Wed, Apr 3, 2013 at
                        11:48 AM, Felipe Bordeu <span dir="ltr">&lt;<a href="mailto:felipe.bordeu@ec-nantes.fr" target="_blank">felipe.bordeu@ec-nantes.fr</a>&gt;</span>
                        wrote:<br>
                        <blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
                          <div bgcolor="#FFFFFF" text="#000000">
                            <div>You must apply the programmablefilter
                              to the cleantoGrid not to the var3d.xmf. <br>
                              <br>
                              look at the screenshot.<br>
                              <br>
                              Felipe<br>
                              <br>
                              <img src="cid:part3.09070304.06020303@ec-nantes.fr" alt=""><br>
                              <br>
                              Le 03/04/2013 17:43, Nikolaos Beratlis a
                              écrit :<br>
                            </div>
                            <div>
                              <div>
                                <blockquote type="cite">
                                  <div dir="ltr">Hi Felipe,
                                    <div><br>
                                    </div>
                                    <div>I applied the CleanToGrid
                                      Filter first and then applied the
                                      following script:</div>
                                    <div>
                                      <p style="margin:0px"><br>
                                      </p>
                                      <p style="margin:0px">pdi =
                                        self.GetInput()</p>
                                      <p style="margin:0px">pdo =
                                        self.GetOutput()</p>
                                      <p style="margin:0px">newPoints =
                                        vtk.vtkPoints()</p>
                                      <p style="margin:0px">numPoints =
                                        pdi.GetNumberOfPoints()</p>
                                      <p style="margin:0px">for i in
                                        range(0, numPoints):</p>
                                      <p style="margin:0px">  coord =
                                        pdi.GetPoint(i)</p>
                                      <p style="margin:0px">  x, y, z =
                                        coord[:3]</p>
                                      <p style="margin:0px">  r = x * <span style="background-color:rgb(243,243,243)"><font color="#ff0000">cos</font></span>(y)</p>
                                      <p style="margin:0px">  t = x * <font color="#ff0000">sin</font>(y)</p>
                                      <p style="margin:0px"> 
                                        newPoints.InsertPoint(i, r, t,
                                        z)</p>
                                      <p style="margin:0px">pdo.SetPoints(newPoints)</p>
                                    </div>
                                    <div><br>
                                    </div>
                                    <div>Notice the indentation and also
                                      the change of the cos(y) and
                                      sin(y) assignments. </div>
                                    <div><br>
                                    </div>
                                    <div>but I got this error:</div>
                                    <br>
                                    Traceback (most recent call last):<br>
                                    <br>
                                    File &quot;&lt;string&gt;&quot;, line 26, in
                                    &lt;module&gt;<br>
                                    <br>
                                    File &quot;&lt;string&gt;&quot;, line 12, in
                                    RequestData<br>
                                    <br>
                                    AttributeError: SetPoints
                                    <div>
                                      <p style="margin:0px"> </p>
                                    </div>
                                    <div><br>
                                    </div>
                                    <div>What am I doing wrong?</div>
                                  </div>
                                  <div class="gmail_extra"><br>
                                    <br>
                                    <div class="gmail_quote">On Wed, Apr
                                      3, 2013 at 11:13 AM, Felipe Bordeu
                                      <span dir="ltr">&lt;<a href="mailto:felipe.bordeu@ec-nantes.fr" target="_blank">felipe.bordeu@ec-nantes.fr</a>&gt;</span>
                                      wrote:<br>
                                      <blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
                                        <div bgcolor="#FFFFFF" text="#000000">
                                          <div>apply a CleanToGrid
                                            filter before  the python
                                            programmable filter and this
                                            is a corrected version of
                                            your script:<br>
                                            <br>
                                            <p style="margin-top:0px;margin-bottom:0px;margin-left:0px;margin-right:0px;text-indent:0px">pdi



                                              = self.GetInput()</p>
                                            <p style="margin-top:0px;margin-bottom:0px;margin-left:0px;margin-right:0px;text-indent:0px">pdo


                                              = self.GetOutput()</p>
                                            <div>
                                              <p style="margin-top:0px;margin-bottom:0px;margin-left:0px;margin-right:0px;text-indent:0px">newPoints



                                                = vtk.vtkPoints()</p>
                                              <p style="margin-top:0px;margin-bottom:0px;margin-left:0px;margin-right:0px;text-indent:0px">numPoints



                                                =
                                                pdi.GetNumberOfPoints()</p>
                                              <p style="margin-top:0px;margin-bottom:0px;margin-left:0px;margin-right:0px;text-indent:0px">for


                                                i in range(0,
                                                numPoints):</p>
                                              <p style="margin-top:0px;margin-bottom:0px;margin-left:0px;margin-right:0px;text-indent:0px">
                                                coord = pdi.GetPoint(i)</p>
                                              <p style="margin-top:0px;margin-bottom:0px;margin-left:0px;margin-right:0px;text-indent:0px">
                                                x, y, z = coord[:3]</p>
                                              <p style="margin-top:0px;margin-bottom:0px;margin-left:0px;margin-right:0px;text-indent:0px">
                                                r = x * sin(y)</p>
                                              <p style="margin-top:0px;margin-bottom:0px;margin-left:0px;margin-right:0px;text-indent:0px">
                                                t = x * cos(y)</p>
                                              <p style="margin-top:0px;margin-bottom:0px;margin-left:0px;margin-right:0px;text-indent:0px">
                                                newPoints.InsertPoint(i,
                                                r, t, z)</p>
                                              <p style="margin-top:0px;margin-bottom:0px;margin-left:0px;margin-right:0px;text-indent:0px">pdo.SetPoints(newPoints)</p>
                                              <br>
                                              <br>
                                            </div>
                                            Felipe<br>
                                            <br>
                                            Le 03/04/2013 04:55,
                                            Nikolaos Beratlis a écrit :<br>
                                          </div>
                                          <blockquote type="cite">
                                            <div>
                                              <div>
                                                <div dir="ltr">
                                                  <div>Hi,</div>
                                                  <div><br>
                                                  </div>
                                                  I am reading the
                                                  following xmf file
                                                  (attached as
                                                  var3d.xmf) into
                                                  Paraview:
                                                  <div><br>
                                                  </div>
                                                  <div>
                                                    <div>&lt;?xml
                                                      version=&quot;1.0&quot;
                                                      ?&gt;</div>
                                                    <div>&lt;!DOCTYPE
                                                      Xdmf SYSTEM
                                                      &quot;Xdmf.dtd&quot; []&gt;</div>
                                                    <div>&lt;Xdmf
                                                      Version=&quot;2.2&quot;&gt;</div>
                                                    <div>&lt;Domain&gt;</div>
                                                    <div>&lt;Grid
                                                      GridType=&quot;Uniform&quot;&gt;</div>
                                                    <div>&lt;Topology
                                                      TopologyType=&quot;3DRectMesh&quot;
                                                      Dimensions=&quot;     2
                                                          4     3&quot;/&gt;</div>
                                                    <div>&lt;Geometry
                                                      GeometryType=&quot;VXVYVZ&quot;&gt;</div>
                                                    <div>&lt;DataItem
                                                      Dimensions=&quot;    3&quot;
                                                      NumberType=&quot;Float&quot;
                                                      Precision=&quot;4&quot;
                                                      Format=&quot;XML&quot;&gt;</div>
                                                    <div>   0.0000  
                                                      1.0000   2.0000</div>
                                                    <div>&lt;/DataItem&gt;</div>
                                                    <div>&lt;DataItem
                                                      Dimensions=&quot;    4&quot;
                                                      NumberType=&quot;Float&quot;
                                                      Precision=&quot;4&quot;
                                                      Format=&quot;XML&quot;&gt;</div>
                                                    <div>   0.0000   <a href="tel:2.0944%20%C2%A0%204.1888" value="+12094441888" target="_blank">2.0944
                                                          4.1888</a>  
                                                      6.2832</div>
                                                    <div>&lt;/DataItem&gt;</div>
                                                    <div>&lt;DataItem
                                                      Dimensions=&quot;    2&quot;
                                                      NumberType=&quot;Float&quot;
                                                      Precision=&quot;4&quot;
                                                      Format=&quot;XML&quot;&gt;</div>
                                                    <div>   1.0000  
                                                      2.0000</div>
                                                    <div>&lt;/DataItem&gt;</div>
                                                    <div>&lt;/Geometry&gt;</div>
                                                    <div> &lt;Attribute
                                                      Name=&quot;var&quot;
                                                      AttributeType=&quot;Scalar&quot;
                                                      Center=&quot;Node&quot;&gt;</div>
                                                    <div>&lt;DataItem
                                                      Dimensions=&quot;24&quot;
                                                      NumberType=&quot;Float&quot;
                                                      Precision=&quot;4&quot;
                                                      Format=&quot;XML&quot;&gt;</div>
                                                    <div>0 1 2 3 4 5 6 7
                                                      8 9 10 11 12 13 14
                                                      15 16 17 18 19 20
                                                      21 22 23</div>
                                                    <div>&lt;/DataItem&gt;</div>
                                                    <div>&lt;/Attribute&gt;</div>
                                                    <div>&lt;/Grid&gt;</div>
                                                    <div>&lt;/Domain&gt;</div>
                                                    <div>&lt;/Xdmf&gt;</div>
                                                    <div><br>
                                                    </div>
                                                    <div> The grid is a
                                                      3D orthogonal grid
                                                      read in cartesian
                                                      coordinates (see
                                                      attached image
                                                      showing grid and
                                                      contours of
                                                      variable). I then
                                                      want to transform
                                                      the grid from
                                                      cartesian to
                                                      cylindrical
                                                      coordinates. I
                                                      tried using the
                                                      following Python
                                                      script:</div>
                                                    <div><br>
                                                    </div>
                                                    <div>
                                                      <p style="margin:0px">pdi
                                                        =
                                                        self.GetPolyDataInput()</p>
                                                      <p style="margin:0px">pdo
                                                        =
                                                        self.GetPolyDataOutput()</p>
                                                      <p style="margin:0px">newPoints

                                                        =
                                                        vtk.vtkPoints()</p>
                                                      <p style="margin:0px">numPoints

                                                        =
                                                        pdi.GetNumberOfPoints()</p>
                                                      <p style="margin:0px">for
                                                        i in range(0,
                                                        numPoints):</p>
                                                      <p style="margin:0px">
                                                        coord =
                                                        pdi.GetPoint(i)</p>
                                                      <p style="margin:0px">
                                                        x, y, z =
                                                        coord[:3]</p>
                                                      <p style="margin:0px">
                                                        r = x * sin(y)</p>
                                                      <p style="margin:0px">
                                                        t = x * cos(y)</p>
                                                      <p style="margin:0px">
                                                        newPoints.InsertPoint(i,
                                                        r, t, z)</p>
                                                      <p style="margin:0px">pdo.SetPoints(newPoints)</p>
                                                      <p style="margin:0px"><br>
                                                      </p>
                                                      <p style="margin:0px">with

                                                        Output Data Set
                                                        Type chosen to
                                                        be the Same as
                                                        Input, but I get
                                                        this error:</p>
                                                      <p style="margin:0px"><br>
                                                      </p>
                                                      Traceback (most
                                                      recent call last):<br>
                                                      File
                                                      &quot;&lt;string&gt;&quot;,
                                                      line 26, in
                                                      &lt;module&gt;<br>
                                                      File
                                                      &quot;&lt;string&gt;&quot;,
                                                      line 12, in
                                                      RequestData<br>
                                                      AttributeError:
                                                      &#39;NoneType&#39; object
                                                      has no attribute
                                                      &#39;SetPoints&#39;</div>
                                                  </div>
                                                  <div><br>
                                                  </div>
                                                  <div>I have no
                                                    experience with
                                                    Python scripting.
                                                    What am I doing
                                                    wrong?</div>
                                                  <div><br>
                                                  </div>
                                                  <div>Thank you,</div>
                                                  <div><br>
                                                  </div>
                                                  <div>Nikos</div>
                                                </div>
                                                <br>
                                                <fieldset></fieldset>
                                                <br>
                                              </div>
                                            </div>
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                                              <pre cols="72">-- 
Felipe Bordeu Weldt
Ingénieur de Recherche
-------------------------------------
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<a href="mailto:Felipe.Bordeu@ec-nantes.fr" target="_blank">Felipe.Bordeu@ec-nantes.fr</a>
Institut GeM - UMR CNRS 6183
École Centrale Nantes
1 Rue de La Noë, 44321 Nantes, FRANCE
-------------------------------------</pre>
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Felipe Bordeu Weldt
Ingénieur de Recherche
-------------------------------------
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Institut GeM - UMR CNRS 6183
École Centrale Nantes
1 Rue de La Noë, 44321 Nantes, FRANCE
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Ingénieur de Recherche
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Institut GeM - UMR CNRS 6183
École Centrale Nantes
1 Rue de La Noë, 44321 Nantes, FRANCE
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Ingénieur de Recherche
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Institut GeM - UMR CNRS 6183
École Centrale Nantes
1 Rue de La Noë, 44321 Nantes, FRANCE
-------------------------------------</pre>
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