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<div class="moz-cite-prefix">look at the "Dealing with composite
Datasets" on :<br>
<br>
<a class="moz-txt-link-freetext" href="http://www.paraview.org/Wiki/Python_Programmable_Filter">http://www.paraview.org/Wiki/Python_Programmable_Filter</a><br>
<br>
<br>
Felipe<br>
<br>
Le 04/04/2013 19:57, Nikolaos Beratlis a écrit :<br>
</div>
<blockquote
cite="mid:CALdMxnyQZ1pyW64rhSVicfppC3yCQw5qr+8Luv648wYa2dnUgA@mail.gmail.com"
type="cite">
<div dir="ltr">When I try to transform the "Collection" grid from
cartesian coordinates to cylindrical coordinates using the
following script:
<div><br>
</div>
<div>
<div class="im"
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">I
get the following error:</div>
<div
style="font-family:arial,sans-serif;font-size:13px;margin:0px">
<br>
</div>
Traceback (most recent call last):<br>
File "<string>", line 26, in <module><br>
File "<string>", line 7, in RequestData<br>
AttributeError: GetPoint
<div><br>
</div>
<div style="">The script works well if the grid is not of
GridType Collection.</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 Thu, Apr 4, 2013 at 3:57 AM, Felipe
Bordeu <span dir="ltr"><<a moz-do-not-send="true"
href="mailto:felipe.bordeu@ec-nantes.fr" target="_blank">felipe.bordeu@ec-nantes.fr</a>></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 put the attributes inside each grid:<br>
<br>
Felipe
<div class="im"><br>
<br>
<?xml version="1.0" ?><br>
<!DOCTYPE Xdmf SYSTEM "Xdmf.dtd" []><br>
<Xdmf Version="2.2"><br>
<Domain><br>
<Grid GridType="Collection"><br>
<Grid GridType="Uniform"><br>
<Topology TopologyType="3DRectMesh"
Dimensions=" 2 4 3"/><br>
<Geometry GeometryType="VXVYVZ"><br>
<DataItem Dimensions=" 3"
NumberType="Float" Precision="4" Format="XML"><br>
0.0000 1.0000 2.0000<br>
</DataItem><br>
<DataItem Dimensions=" 4"
NumberType="Float" Precision="4" Format="XML"><br>
0.0000 2.0944 4.1888 6.2832<br>
</DataItem><br>
<DataItem Dimensions=" 2"
NumberType="Float" Precision="4" Format="XML"><br>
1.0000 2.0000<br>
</DataItem><br>
</Geometry><br>
</div>
<div class="im"> <Attribute Name="var"
AttributeType="Scalar" Center="Node"><br>
</div>
<DataItem Dimensions="24 1 1"
NumberType="Float" Precision="4" Format="XML">
<div class="im"><br>
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18
19 20 21 22 23<br>
</div>
</DataItem><br>
</Attribute>
<div class="im"><br>
</Grid><br>
<Grid GridType="Uniform"><br>
<Topology TopologyType="3DRectMesh"
Dimensions=" 2 4 3"/><br>
<Geometry GeometryType="VXVYVZ"><br>
<DataItem Dimensions=" 3" NumberType="Float"
Precision="4" Format="XML"><br>
1.0000 2.0000 3.0000<br>
</DataItem><br>
<DataItem Dimensions=" 4" NumberType="Float"
Precision="4" Format="XML"><br>
0.0000 2.0944 4.1888 6.2832<br>
</DataItem><br>
<DataItem Dimensions=" 2" NumberType="Float"
Precision="4" Format="XML"><br>
2.0000 3.0000<br>
</DataItem><br>
</Geometry><br>
</div>
<div class="im"> <Attribute Name="var"
AttributeType="Scalar" Center="Node"><br>
</div>
<DataItem Dimensions="24 1 1" NumberType="Float"
Precision="4" Format="XML">
<div class="im"><br>
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
21 22 23<br>
</div>
</DataItem><br>
</Attribute><br>
</Grid><br>
</Grid><br>
</Domain><br>
</Xdmf><br>
<br>
<br>
Le 04/04/2013 04:36, Nikolaos Beratlis a écrit :<br>
</div>
<blockquote type="cite">
<div>
<div class="h5">
<div dir="ltr">I have a domain that consists of
patches of orthogonal cartesian grids in the
following XDMF file:
<div><br>
</div>
<div>
<div><?xml version="1.0" ?></div>
<div><!DOCTYPE Xdmf SYSTEM "Xdmf.dtd" []></div>
<div><Xdmf Version="2.2"></div>
<div><Domain></div>
<div><Grid GridType="Collection"></div>
<div><Grid GridType="Uniform"></div>
<div><Topology TopologyType="3DRectMesh"
Dimensions=" 2 4 3"/></div>
<div><Geometry GeometryType="VXVYVZ"></div>
<div><DataItem Dimensions=" 3"
NumberType="Float" Precision="4"
Format="XML"></div>
<div> 0.0000 1.0000 2.0000</div>
<div></DataItem></div>
<div><DataItem Dimensions=" 4"
NumberType="Float" Precision="4"
Format="XML"></div>
<div> 0.0000 2.0944 4.1888 6.2832</div>
<div></DataItem></div>
<div><DataItem Dimensions=" 2"
NumberType="Float" Precision="4"
Format="XML"></div>
<div> 1.0000 2.0000</div>
<div></DataItem></div>
<div></Geometry></div>
<div> </Grid></div>
<div><Grid GridType="Uniform"></div>
<div><Topology TopologyType="3DRectMesh"
Dimensions=" 2 4 3"/></div>
<div><Geometry GeometryType="VXVYVZ"></div>
<div><DataItem Dimensions=" 3"
NumberType="Float" Precision="4"
Format="XML"></div>
<div> 1.0000 2.0000 3.0000</div>
<div></DataItem></div>
<div><DataItem Dimensions=" 4"
NumberType="Float" Precision="4"
Format="XML"></div>
<div> 0.0000 2.0944 4.1888 6.2832</div>
<div></DataItem></div>
<div><DataItem Dimensions=" 2"
NumberType="Float" Precision="4"
Format="XML"></div>
<div> 2.0000 3.0000</div>
<div></DataItem></div>
<div></Geometry></div>
<div></Grid></div>
<div><Attribute Name="var"
AttributeType="Scalar" Center="Node"></div>
<div><DataItem Dimensions="48"
NumberType="Float" Precision="4"
Format="XML"></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>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></DataItem></div>
<div></Attribute></div>
<div></Grid></div>
<div></Domain></div>
<div></Xdmf></div>
</div>
<div><br>
</div>
<div>The grid is declared as GridType Collection.
When I read it in Paraview the grid is read
correctly as shown in the attached picture,
however I don't get the values for the
attribute. I think the attribute is not read at
all. Is there sth wrong with this file? How
should the attribute be specified for GridType
Collection?</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
-------------------------------------
Tél. : <a moz-do-not-send="true" href="tel:33%20%280%292%2040%2037%2016" value="+13302403716" target="_blank">33 (0)2 40 37 16</a> 57
Fax. : <a moz-do-not-send="true" href="tel:33%20%280%292%2040%2074%2074" value="+13302407474" target="_blank">33 (0)2 40 74 74</a> 06
<a moz-do-not-send="true" 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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<pre class="moz-signature" cols="72">--
Felipe Bordeu Weldt
Ingénieur de Recherche
-------------------------------------
Tél. : 33 (0)2 40 37 16 57
Fax. : 33 (0)2 40 74 74 06
<a class="moz-txt-link-abbreviated" href="mailto:Felipe.Bordeu@ec-nantes.fr">Felipe.Bordeu@ec-nantes.fr</a>
Institut GeM - UMR CNRS 6183
École Centrale Nantes
1 Rue de La Noë, 44321 Nantes, FRANCE
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