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<font size="-1"><font face="Helvetica, Arial, sans-serif">Ok this was
solved.<br>
I had to use a vtkCellDataToPointData befor inputting it into the
vtkStreamLine.<br>
</font></font><br>
Am 26.03.2010 11:30, schrieb Sebastian Gatzka:
<blockquote cite="mid:4BAC8CAB.7030604@stud.tu-darmstadt.de" type="cite">
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<font size="-1"><font face="Helvetica, Arial, sans-serif">Nope, it's
not working with my data.<br>
<br>
I really need this to work: <font color="#ff0000"><b>Vector Data is on
structured grid cell centers!!!</b></font><br>
<font face="Courier New, Courier, monospace"><br>
vtkStructuredGrid *sGrid = vtkStructuredGrid::New();<br>
<br>
(...)<br>
<br>
vtkCellCenters *gridCellCenters = vtkCellCenters::New();<br>
gridCellCenters->SetInput(sGrid);<br>
</font><br>
Vector Data is on the structured grid cell centers:<br>
<font face="Courier New, Courier, monospace"><br>
sGrid->GetCellData()->SetVectors(v);<br>
<br>
(...)<br>
<br>
vtkStreamLine *streamer = vtkStreamLine::New();<br>
<u><i>streamer->SetInputConnection(gridCellCenters->GetOutputPort());</i></u><br>
streamer->SetStartPosition(1,1,1);<br>
streamer->SetMaximumPropagationTime(200);<br>
streamer->SetIntegrationStepLength(.2);<br>
streamer->SetStepLength(.001);<br>
streamer->SetNumberOfThreads(1);<br>
streamer->SetIntegrationDirectionToForward();<br>
streamer->VorticityOn();<br>
<br>
vtkPolyDataMapper *streamMapper = vtkPolyDataMapper::New();<br>
streamMapper->SetInputConnection(streamer->GetOutputPort());<br>
<br>
vtkActor *streamActor = vtkActor::New();<br>
streamActor->SetMapper(streamMapper);<br>
streamActor->VisibilityOn();<br>
<br>
(...)<br>
<br>
ren1->AddActor(streamActor);</font><br>
<br>
Nothing is displayed.<br>
<br>
<big><b><font color="#ff0000">How can I manage to input my data to
the
vtkStreamLine?!?</font></b></big><br>
</font></font><br>
Am 25.03.2010 13:51, schrieb Favre Jean:
<blockquote
cite="mid:AB48A31C4EC97E498F4235B7CEF74A19060C087B65@MBX00.d.ethz.ch"
type="cite">
<pre wrap="">I believe this example will now work if you set your VTK_DATA_ROOT appropriately.
-----------------
Jean M. Favre
Scientific Computing Research
Swiss National Supercomputing Center
CH-6828 Manno
Switzerland
</pre>
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