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Joshua, <br>
<br>
There was mistake in my previous post, you should override
FillOutputInformation and set
info->Set(vtkDataObject::DATA_TYPE_NAME(), "vtkTable");<br>
<br>
Sorry about that.<br>
Burlen<br>
<br>
<br>
<br>
On 04/09/2012 12:24 PM, Joshua Murphy wrote:
<blockquote
cite="mid:CBA89256.1168%25joshua.murphy@lasp.colorado.edu"
type="cite">
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charset=windows-1252">
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<div style="color: rgb(0, 0, 0);">Hi Burlen,</div>
<div style="color: rgb(0, 0, 0);"><br>
</div>
<div style="color: rgb(0, 0, 0);">I think I am getting there, but
I am having the following problem now..</div>
<div style="color: rgb(0, 0, 0);"><br>
</div>
<div style="color: rgb(0, 0, 0);">The following snippet from my
RequestData is causing a segfault… </div>
<div style="color: rgb(0, 0, 0);"><br>
</div>
<div style="color: rgb(0, 0, 0);">
<pre style="margin: 0px; text-indent: 0px;"><!--StartFragment--><span style="color: rgb(192, 192, 192);"> </span><span style="color: rgb(85, 255, 85);">vtkInformation</span><span style="color: rgb(192, 192, 192);"> </span><span style="color: rgb(170, 170, 170);">*</span>outInfo2<span style="color: rgb(192, 192, 192);"> </span><span style="color: rgb(170, 170, 170);">=</span><span style="color: rgb(192, 192, 192);"> </span>outputVector<span style="color: rgb(170, 170, 170);">-></span>GetInformationObject<span style="color: rgb(170, 170, 170);">(</span><span style="color: rgb(255, 85, 255);">1</span><span style="color: rgb(170, 170, 170);">);</span></pre>
<pre style="margin: 0px; text-indent: 0px;"><!--EndFragment--></pre>
</div>
<div>
<pre style="color: rgb(0, 0, 0); margin: 0px; text-indent: 0px;"><!--StartFragment--><span style="color: rgb(192, 192, 192);"> </span><span style="color: rgb(85, 255, 85);">vtkTable</span><span style="color: rgb(192, 192, 192);"> </span><span style="color: rgb(170, 170, 170);">*</span>MetaDataOutput<span style="color: rgb(192, 192, 192);"> </span><span style="color: rgb(170, 170, 170);">=</span><span style="color: rgb(192, 192, 192);"> </span><span style="color: rgb(85, 255, 85);">vtkTable</span><span style="color: rgb(170, 170, 170);">::</span>SafeDownCast<span style="color: rgb(170, 170, 170);">(</span>outInfo2<span style="color: rgb(170, 170, 170);">-></span>Get<span style="color: rgb(170, 170, 170);">(</span><span style="color: rgb(85, 255, 85);">vtkDataObject</span><span style="color: rgb(170, 170, 170);">::</span>DATA_OBJECT<span style="color: rgb(170, 170, 170);">()));</span></pre>
<pre style="color: rgb(0, 0, 0); margin: 0px; text-indent: 0px;"><!--EndFragment--></pre>
</div>
<div style="color: rgb(0, 0, 0);"><br>
</div>
<div style="color: rgb(0, 0, 0);">Am I grabbing the information
object incorrectly, or do I need to override another method? Do
I need to do something with RequestDataObject()?</div>
<div style="color: rgb(0, 0, 0);"><br>
</div>
<div style="color: rgb(0, 0, 0);">If you can help, that would be
great!</div>
<div style="color: rgb(0, 0, 0);"><br>
</div>
<div style="color: rgb(0, 0, 0);">-Josh</div>
<div style="color: rgb(0, 0, 0);"><br>
</div>
<div><br>
</div>
<span id="OLK_SRC_BODY_SECTION" style="color: rgb(0, 0, 0);">
<div style="font-family: Calibri; font-size: 11pt; text-align:
left; color: black; border-width: 1pt medium medium;
border-style: solid none none; border-color: rgb(181, 196,
223) -moz-use-text-color -moz-use-text-color; padding: 3pt 0in
0in;"><span style="font-weight: bold;">From: </span> Burlen
Loring <<a moz-do-not-send="true"
href="mailto:bloring@lbl.gov">bloring@lbl.gov</a>><br>
<span style="font-weight: bold;">Date: </span> Mon, 9 Apr
2012 12:34:02 -0600<br>
<span style="font-weight: bold;">To: </span> Joshua Murphy
<<a moz-do-not-send="true"
href="mailto:joshua.murphy@lasp.colorado.edu">joshua.murphy@lasp.colorado.edu</a>><br>
<span style="font-weight: bold;">Cc: </span> burlen <<a
moz-do-not-send="true" href="mailto:burlen.loring@gmail.com">burlen.loring@gmail.com</a>>,
"<a moz-do-not-send="true" href="mailto:paraview@paraview.org">paraview@paraview.org</a>"
<<a moz-do-not-send="true"
href="mailto:paraview@paraview.org">paraview@paraview.org</a>><br>
<span style="font-weight: bold;">Subject: </span> Re:
[Paraview] Question on Information Objects<br>
</div>
<div><br>
</div>
<div>
<title></title>
<div bgcolor="#ffffff" text="#000000"> Hi Joshua,<br>
<br>
In your constructor you'd need to call<br>
<blockquote>this->SetNumberOfInputPorts(2);<br>
</blockquote>
You'd need to override <br>
<blockquote>FillInputPortInformation(int port,
vtkInformation *info)<br>
</blockquote>
implement a switch on port number and do something like:<br>
<br>
288 switch (port)<br>
289 {<br>
290 // Vector feild data<br>
291 case 0:<br>
292
info->Set(vtkAlgorithm::INPUT_REQUIRED_DATA_TYPE(),
"vtkUnstructuredGrid");<br>
293 break;<br>
294 // Seed points<br>
295 case 1:<br>
296
info->Set(vtkAlgorithm::INPUT_REQUIRED_DATA_TYPE(),
"vtkTable");<br>
297 break;<br>
398 }<br>
<br>
in request data you have to grab the table from the second
information object.<br>
<br>
Hope this helps<br>
Burlen<br>
<br>
<br>
<br>
On 04/09/2012 11:01 AM, Joshua Murphy wrote:
<blockquote
cite="mid:CBA87DB3.1133%25joshua.murphy@lasp.colorado.edu"
type="cite">
<meta name="qrichtext" content="1">
<style type="text/css">
p, li { white-space: pre-wrap; }
</style>
<div style="color: rgb(0, 0, 0);">Hello,</div>
<div style="color: rgb(0, 0, 0);"><br>
</div>
<div style="color: rgb(0, 0, 0);">So I am trying to figure
out how to add an output port to my Reader, but I am
having difficulty.</div>
<div style="color: rgb(0, 0, 0);"><br>
</div>
<div style="color: rgb(0, 0, 0);">I am trying to create
the new output as outlined in the email below, but when
I get to the point of adding the column to the table,
ParaView segfaults.</div>
<div style="color: rgb(0, 0, 0);"><br>
</div>
<div style="color: rgb(0, 0, 0);">Having looked through
other emails on the list, it looks like the output ports
need to be configured somehow, but I am not sure how to
do that.</div>
<div style="color: rgb(0, 0, 0);"><br>
</div>
<div style="color: rgb(0, 0, 0);">My reader creates a
vtkStructuredGrid for the data, and I need to add the
vtkTable for the meta-data… how do I configure the
reader for these two outputs?</div>
<div style="color: rgb(0, 0, 0);"><br>
</div>
<div style="color: rgb(0, 0, 0);"><br>
</div>
<div style="color: rgb(0, 0, 0);">Currently, my
getInformation (beginning) looks like this:</div>
<div style="color: rgb(0, 0, 0);">------------</div>
<div style="color: rgb(0, 0, 0);"><br>
</div>
<div>
<pre style="color: rgb(0, 0, 0); margin: 0px; text-indent: 0px;"><span style="color: rgb(192, 192, 192);"> </span><span style="color: rgb(85, 255, 85);">vtkInformation</span><span style="color: rgb(192, 192, 192);"> </span><span style="color: rgb(170, 170, 170);">*</span>outInfo<span style="color: rgb(192, 192, 192);"> </span><span style="color: rgb(170, 170, 170);">=</span><span style="color: rgb(192, 192, 192);"> </span>outputVector<span style="color: rgb(170, 170, 170);">-></span>GetInformationObject<span style="color: rgb(170, 170, 170);">(</span><span style="color: rgb(255, 85, 255);">0</span><span style="color: rgb(170, 170, 170);">);</span></pre>
<pre style="color: rgb(0, 0, 0); margin: 0px; text-indent: 0px;"><span style="color: rgb(192, 192, 192);"> </span><span style="color: rgb(85, 255, 85);">vtkStructuredGrid</span><span style="color: rgb(192, 192, 192);"> </span><span style="color: rgb(170, 170, 170);">*</span>output<span style="color: rgb(192, 192, 192);"> </span><span style="color: rgb(170, 170, 170);">=</span><span style="color: rgb(192, 192, 192);"> </span><span style="color: rgb(85, 255, 85);">vtkStructuredGrid</span><span style="color: rgb(170, 170, 170);">::</span>SafeDownCast<span style="color: rgb(170, 170, 170);">(</span></pre>
<pre style="color: rgb(0, 0, 0); margin: 0px; text-indent: 0px;"><span style="color: rgb(192, 192, 192);"> </span>outInfo<span style="color: rgb(170, 170, 170);">-></span>Get<span style="color: rgb(170, 170, 170);">(</span><span style="color: rgb(85, 255, 85);">vtkDataObject</span><span style="color: rgb(170, 170, 170);">::</span>DATA_OBJECT<span style="color: rgb(170, 170, 170);">()));</span></pre>
<pre style="color: rgb(0, 0, 0); margin: 0px; text-indent: 0px;"><span style="color: rgb(192, 192, 192);"> </span><span style="color: rgb(85, 255, 255);">//TODO:</span><span style="color: rgb(192, 192, 192);"> </span><span style="color: rgb(85, 255, 255);">Add</span><span style="color: rgb(192, 192, 192);"> </span><span style="color: rgb(85, 255, 255);">Meta</span><span style="color: rgb(192, 192, 192);"> </span><span style="color: rgb(85, 255, 255);">Data</span><span style="color: rgb(192, 192, 192);"> </span><span style="color: rgb(85, 255, 255);">here</span><span style="color: rgb(192, 192, 192);"> </span><span style="color: rgb(85, 255, 255);">first</span></pre>
<pre style="color: rgb(0, 0, 0); margin: 0px; text-indent: 0px;"><span style="color: rgb(192, 192, 192);"> </span><span style="color: rgb(85, 255, 255);">//</span><span style="color: rgb(192, 192, 192);"> </span><span style="color: rgb(85, 255, 255);">Use</span><span style="color: rgb(192, 192, 192);"> </span><span style="color: rgb(85, 255, 255);">VTK</span><span style="color: rgb(192, 192, 192);"> </span><span style="color: rgb(85, 255, 255);">Table</span><span style="color: rgb(192, 192, 192);"> </span><span style="color: rgb(85, 255, 255);">output</span><span style="color: rgb(192, 192, 192);"> </span><span style="color: rgb(85, 255, 255);">Port</span></pre>
<pre style="color: rgb(0, 0, 0); margin: 0px; text-indent: 0px;"><span style="color: rgb(192, 192, 192);"> </span><span style="color: rgb(85, 255, 255);">//</span><span style="color: rgb(192, 192, 192);"> </span><span style="color: rgb(85, 255, 255);">Following</span><span style="color: rgb(192, 192, 192);"> </span><span style="color: rgb(85, 255, 255);">is</span><span style="color: rgb(192, 192, 192);"> </span><span style="color: rgb(85, 255, 255);">from</span><span style="color: rgb(192, 192, 192);"> </span><span style="color: rgb(85, 255, 255);">discussion</span><span style="color: rgb(192, 192, 192);"> </span><span style="color: rgb(85, 255, 255);">on</span><span style="color: rgb(192, 192, 192);"> </span><span style="color: rgb(85, 255, 255);">ParaView</span><span style="color: rgb(192, 192, 192);"> </span><span style="color: rgb(85, 255, 255);">Mailing</span><span style="color: rgb(192, 192, 192);"> </span><span style="color: rgb(85, 255, 255);">List</s
pan>
<pre style="color: rgb(0, 0, 0); margin: 0px; text-indent: 0px;"><span style="color: rgb(192, 192, 192);"> </span><span style="color: rgb(85, 255, 255);">//-----------------------------------------------------------</span></pre>
<pre style="color: rgb(0, 0, 0); margin: 0px; text-indent: 0px;"><span style="color: rgb(192, 192, 192);"> </span><span style="color: rgb(85, 255, 255);">//</span><span style="color: rgb(192, 192, 192);"> </span><span style="color: rgb(85, 255, 255);">315</span><span style="color: rgb(192, 192, 192);"> </span><span style="color: rgb(85, 255, 255);">vtkInformation</span><span style="color: rgb(192, 192, 192);"> </span><span style="color: rgb(85, 255, 255);">*outInfo;</span></pre>
<pre style="color: rgb(0, 0, 0); margin: 0px; text-indent: 0px;"><span style="color: rgb(192, 192, 192);"> </span><span style="color: rgb(85, 255, 255);">//</span><span style="color: rgb(192, 192, 192);"> </span><span style="color: rgb(85, 255, 255);">316</span><span style="color: rgb(192, 192, 192);"> </span><span style="color: rgb(85, 255, 255);">vtkTable</span><span style="color: rgb(192, 192, 192);"> </span><span style="color: rgb(85, 255, 255);">*output;</span></pre>
<pre style="color: rgb(0, 0, 0); margin: 0px; text-indent: 0px;"><span style="color: rgb(192, 192, 192);"> </span><span style="color: rgb(85, 255, 255);">//</span><span style="color: rgb(192, 192, 192);"> </span><span style="color: rgb(85, 255, 255);">317</span><span style="color: rgb(192, 192, 192);"> </span><span style="color: rgb(85, 255, 255);">vtkStringArray</span><span style="color: rgb(192, 192, 192);"> </span><span style="color: rgb(85, 255, 255);">*data;</span></pre>
<pre style="color: rgb(0, 0, 0); margin: 0px; text-indent: 0px;"><span style="color: rgb(192, 192, 192);"> </span><span style="color: rgb(85, 255, 255);">//</span><span style="color: rgb(192, 192, 192);"> </span><span style="color: rgb(85, 255, 255);">318</span></pre>
<pre style="color: rgb(0, 0, 0); margin: 0px; text-indent: 0px;"><span style="color: rgb(192, 192, 192);"> </span><span style="color: rgb(85, 255, 255);">//</span><span style="color: rgb(192, 192, 192);"> </span><span style="color: rgb(85, 255, 255);">319</span><span style="color: rgb(192, 192, 192);"> </span><span style="color: rgb(85, 255, 255);">//</span><span style="color: rgb(192, 192, 192);"> </span><span style="color: rgb(85, 255, 255);">output</span><span style="color: rgb(192, 192, 192);"> </span><span style="color: rgb(85, 255, 255);">port</span><span style="color: rgb(192, 192, 192);"> </span><span style="color: rgb(85, 255, 255);">1</span><span style="color: rgb(192, 192, 192);"> </span><span style="color: rgb(85, 255, 255);">-></span><span style="color: rgb(192, 192, 192);"> </span><span style="color: rgb(85, 255, 255);">bw</span><span style="color: rgb(192, 192, 192);"> </span><span style="color: rgb(85, 255, 255);">data</span></pre>
<pre style="color: rgb(0, 0, 0); margin: 0px; text-indent: 0px;"><span style="color: rgb(192, 192, 192);"> </span><span style="color: rgb(85, 255, 255);">//</span><span style="color: rgb(192, 192, 192);"> </span><span style="color: rgb(85, 255, 255);">320</span><span style="color: rgb(192, 192, 192);"> </span><span style="color: rgb(85, 255, 255);">outInfo=outputVector->GetInformationObject(0);</span></pre>
<pre style="color: rgb(0, 0, 0); margin: 0px; text-indent: 0px;"><span style="color: rgb(192, 192, 192);"> </span><span style="color: rgb(85, 255, 255);">//</span><span style="color: rgb(192, 192, 192);"> </span><span style="color: rgb(85, 255, 255);">321</span><span style="color: rgb(192, 192, 192);"> </span><span style="color: rgb(85, 255, 255);">output</span></pre>
<pre style="color: rgb(0, 0, 0); margin: 0px; text-indent: 0px;"><span style="color: rgb(192, 192, 192);"> </span><span style="color: rgb(85, 255, 255);">//</span><span style="color: rgb(192, 192, 192);"> </span><span style="color: rgb(85, 255, 255);">322</span><span style="color: rgb(192, 192, 192);"> </span><span style="color: rgb(85, 255, 255);">=</span><span style="color: rgb(192, 192, 192);"> </span><span style="color: rgb(85, 255, 255);">dynamic_cast<vtkTable*>(outInfo->Get(vtkDataObject::DATA_OBJECT()));</span></pre>
<pre style="color: rgb(0, 0, 0); margin: 0px; text-indent: 0px;"><span style="color: rgb(192, 192, 192);"> </span><span style="color: rgb(85, 255, 255);">//</span><span style="color: rgb(192, 192, 192);"> </span><span style="color: rgb(85, 255, 255);">323</span><span style="color: rgb(192, 192, 192);"> </span><span style="color: rgb(85, 255, 255);">data=vtkStringArray::New();</span></pre>
<pre style="color: rgb(0, 0, 0); margin: 0px; text-indent: 0px;"><span style="color: rgb(192, 192, 192);"> </span><span style="color: rgb(85, 255, 255);">//</span><span style="color: rgb(192, 192, 192);"> </span><span style="color: rgb(85, 255, 255);">324</span><span style="color: rgb(192, 192, 192);"> </span><span style="color: rgb(85, 255, 255);">data->SetName("BW</span><span style="color: rgb(192, 192, 192);"> </span><span style="color: rgb(85, 255, 255);">Data");</span></pre>
<pre style="color: rgb(0, 0, 0); margin: 0px; text-indent: 0px;"><span style="color: rgb(192, 192, 192);"> </span><span style="color: rgb(85, 255, 255);">//</span><span style="color: rgb(192, 192, 192);"> </span><span style="color: rgb(85, 255, 255);">325</span><span style="color: rgb(192, 192, 192);"> </span><span style="color: rgb(85, 255, 255);">data->SetNumberOfComponents(1);</span></pre>
<pre style="color: rgb(0, 0, 0); margin: 0px; text-indent: 0px;"><span style="color: rgb(192, 192, 192);"> </span><span style="color: rgb(85, 255, 255);">//</span><span style="color: rgb(192, 192, 192);"> </span><span style="color: rgb(85, 255, 255);">326</span><span style="color: rgb(192, 192, 192);"> </span><span style="color: rgb(85, 255, 255);">data->InsertNextValue(bwData.c_str());</span></pre>
<pre style="color: rgb(0, 0, 0); margin: 0px; text-indent: 0px;"><span style="color: rgb(192, 192, 192);"> </span><span style="color: rgb(85, 255, 255);">//</span><span style="color: rgb(192, 192, 192);"> </span><span style="color: rgb(85, 255, 255);">327</span><span style="color: rgb(192, 192, 192);"> </span><span style="color: rgb(85, 255, 255);">output->AddColumn(data);</span></pre>
<pre style="color: rgb(0, 0, 0); margin: 0px; text-indent: 0px;"><span style="color: rgb(192, 192, 192);"> </span><span style="color: rgb(85, 255, 255);">//</span><span style="color: rgb(192, 192, 192);"> </span><span style="color: rgb(85, 255, 255);">328</span><span style="color: rgb(192, 192, 192);"> </span><span style="color: rgb(85, 255, 255);">data->Delete();</span></pre>
<pre style="color: rgb(0, 0, 0); margin: 0px; text-indent: 0px;"><span style="color: rgb(192, 192, 192);"> </span><span style="color: rgb(85, 255, 255);">//----------------------------------------------------------</span></pre>
<pre style="color: rgb(0, 0, 0); margin: 0px; text-indent: 0px;"><span style="color: rgb(192, 192, 192);"> </span><span style="color: rgb(85, 255, 85);">vtkTable</span><span style="color: rgb(192, 192, 192);"> </span><span style="color: rgb(170, 170, 170);">*</span>MetaDataOutput<span style="color: rgb(170, 170, 170);">;</span></pre>
<pre style="color: rgb(0, 0, 0); margin: 0px; text-indent: 0px;"><span style="color: rgb(192, 192, 192);"> </span><span style="color: rgb(85, 255, 85);">vtkStringArray</span><span style="color: rgb(192, 192, 192);"> </span><span style="color: rgb(170, 170, 170);">*</span>MetaString<span style="color: rgb(170, 170, 170);">;</span></pre>
<pre style="color: rgb(0, 0, 0); margin: 0px; text-indent: 0px;"><span style="color: rgb(192, 192, 192);"> </span><span style="color: rgb(85, 255, 255);">//output</span><span style="color: rgb(192, 192, 192);"> </span><span style="color: rgb(85, 255, 255);">port</span><span style="color: rgb(192, 192, 192);"> </span><span style="color: rgb(85, 255, 255);">for</span><span style="color: rgb(192, 192, 192);"> </span><span style="color: rgb(85, 255, 255);">table</span><span style="color: rgb(192, 192, 192);"> </span><span style="color: rgb(85, 255, 255);">data</span></pre>
<pre style="color: rgb(0, 0, 0); margin: 0px; text-indent: 0px;">MetaDataOutput<span style="color: rgb(192, 192, 192);"> </span><span style="color: rgb(170, 170, 170);">=</span><span style="color: rgb(192, 192, 192);"> </span><span style="color: rgb(255, 255, 85);">dynamic_cast</span><span style="color: rgb(170, 170, 170);"><</span><span style="color: rgb(85, 255, 85);">vtkTable</span><span style="color: rgb(170, 170, 170);">*>(</span>outInfo<span style="color: rgb(170, 170, 170);">-></span>Get<span style="color: rgb(170, 170, 170);">(</span><span style="color: rgb(85, 255, 85);">vtkDataObject</span><span style="color: rgb(170, 170, 170);">::</span>DATA_OBJECT<span style="color: rgb(170, 170, 170);">()));</span></pre>
<pre style="color: rgb(0, 0, 0); margin: 0px; text-indent: 0px;">MetaString<span style="color: rgb(192, 192, 192);"> </span><span style="color: rgb(170, 170, 170);">=</span><span style="color: rgb(192, 192, 192);"> </span><span style="color: rgb(85, 255, 85);">vtkStringArray</span><span style="color: rgb(170, 170, 170);">::</span>New<span style="color: rgb(170, 170, 170);">();</span></pre>
<pre style="color: rgb(0, 0, 0); margin: 0px; text-indent: 0px;">MetaString<span style="color: rgb(170, 170, 170);">-></span><span style="font-style: italic;">SetName</span><span style="color: rgb(170, 170, 170);">(</span><span style="color: rgb(255, 85, 255);">"Meta</span><span style="color: rgb(192, 192, 192);"> </span><span style="color: rgb(255, 85, 255);">Data"</span><span style="color: rgb(170, 170, 170);">);</span></pre>
<pre style="color: rgb(0, 0, 0); margin: 0px; text-indent: 0px;">MetaString<span style="color: rgb(170, 170, 170);">-></span>InsertNextValue<span style="color: rgb(170, 170, 170);">(</span><span style="color: rgb(255, 85, 255);">"This</span><span style="color: rgb(192, 192, 192);"> </span><span style="color: rgb(255, 85, 255);">is</span><span style="color: rgb(192, 192, 192);"> </span><span style="color: rgb(255, 85, 255);">a</span><span style="color: rgb(192, 192, 192);"> </span><span style="color: rgb(255, 85, 255);">Test"</span><span style="color: rgb(170, 170, 170);">);</span></pre>
<pre style="color: rgb(0, 0, 0); margin: 0px; text-indent: 0px;">MetaString<span style="color: rgb(170, 170, 170);">-></span>InsertNextValue<span style="color: rgb(170, 170, 170);">(</span><span style="color: rgb(255, 85, 255);">"This</span><span style="color: rgb(192, 192, 192);"> </span><span style="color: rgb(255, 85, 255);">is</span><span style="color: rgb(192, 192, 192);"> </span><span style="color: rgb(255, 85, 255);">Another</span><span style="color: rgb(192, 192, 192);"> </span><span style="color: rgb(255, 85, 255);">Test"</span><span style="color: rgb(170, 170, 170);">);</span></pre>
<pre style="color: rgb(0, 0, 0); margin: 0px; text-indent: 0px;"><span style="color: rgb(85, 255, 255);">//VVVVVVVVV</span><span style="color: rgb(192, 192, 192);"> </span><span style="color: rgb(85, 255, 255);">This</span><span style="color: rgb(192, 192, 192);"> </span><span style="color: rgb(85, 255, 255);">is</span><span style="color: rgb(192, 192, 192);"> </span><span style="color: rgb(85, 255, 255);">making</span><span style="color: rgb(192, 192, 192);"> </span><span style="color: rgb(85, 255, 255);">me</span><span style="color: rgb(192, 192, 192);"> </span><span style="color: rgb(85, 255, 255);">crash!</span><span style="color: rgb(192, 192, 192);"> </span><span style="color: rgb(85, 255, 255);">VVVVVVVVVVVV//</span></pre>
<pre style="color: rgb(0, 0, 0); margin: 0px; text-indent: 0px;"><span style="color: rgb(85, 255, 255);">//-----</span><span style="color: rgb(192, 192, 192);"> </span><span style="color: rgb(85, 255, 255);">Need</span><span style="color: rgb(192, 192, 192);"> </span><span style="color: rgb(85, 255, 255);">another</span><span style="color: rgb(192, 192, 192);"> </span><span style="color: rgb(85, 255, 255);">output</span><span style="color: rgb(192, 192, 192);"> </span><span style="color: rgb(85, 255, 255);">port!</span><span style="color: rgb(192, 192, 192);"> </span><span style="color: rgb(85, 255, 255);">How?</span><span style="color: rgb(192, 192, 192);"> </span><span style="color: rgb(85, 255, 255);">-------//</span></pre>
<pre style="margin: 0px; text-indent: 0px;">MetaDataOutput->AddColumn(MetaString);</pre>
<pre style="color: rgb(0, 0, 0); margin: 0px; text-indent: 0px;">MetaString<span style="color: rgb(170, 170, 170);">-></span><span style="font-style: italic;">Delete</span><span style="color: rgb(170, 170, 170);">();</span></pre>
<pre style="color: rgb(0, 0, 0); margin: 0px; text-indent: 0px;"><span style="color: rgb(85, 255, 255);">//structured</span><span style="color: rgb(192, 192, 192);"> </span><span style="color: rgb(85, 255, 255);">grid</span><span style="color: rgb(192, 192, 192);"> </span><span style="color: rgb(85, 255, 255);">below</span><span style="color: rgb(192, 192, 192);"> </span><span style="color: rgb(85, 255, 255);">here....</span></pre>
<pre style="color: rgb(0, 0, 0); margin: 0px; text-indent: 0px;"><span style="color: rgb(192, 192, 192);"> </span><span style="color: rgb(85, 255, 85);">vtkStructuredGrid</span><span style="color: rgb(192, 192, 192);"> </span><span style="color: rgb(170, 170, 170);">*</span>structOutput<span style="color: rgb(192, 192, 192);"> </span><span style="color: rgb(170, 170, 170);">=</span><span style="color: rgb(192, 192, 192);"> </span><span style="color: rgb(85, 255, 85);">vtkStructuredGrid</span><span style="color: rgb(170, 170, 170);">::</span>SafeDownCast<span style="color: rgb(170, 170, 170);">(</span>output<span style="color: rgb(170, 170, 170);">);</span></pre>
<pre style="color: rgb(0, 0, 0); margin: 0px; text-indent: 0px;"><span style="color: rgb(170, 170, 170);"></span></pre>
</pre>
</div>
<div style="color: rgb(0, 0, 0);">--------------</div>
<div style="color: rgb(0, 0, 0);"><br>
</div>
<div style="color: rgb(0, 0, 0);">The reader segfaults on
MetaDataOutput->AddColumn(MetaString);</div>
<div style="color: rgb(0, 0, 0);"><br>
</div>
<div style="color: rgb(0, 0, 0);">If someone could point
me in the correct direction (or simply tell me how
stupid I am being!, and then point in the correct
direction!) I would be very grateful! I am sure I have
a basic misunderstanding of what is supposed to be
happening here!</div>
<div style="color: rgb(0, 0, 0);"><br>
</div>
<div style="color: rgb(0, 0, 0);">-Josh</div>
<div style="color: rgb(0, 0, 0);"><br>
</div>
<div style="color: rgb(0, 0, 0);"><br>
</div>
<div style="color: rgb(0, 0, 0);"><br>
</div>
<span id="OLK_SRC_BODY_SECTION" style="color: rgb(0, 0,
0);">
<div style="font-family: Calibri; font-size: 11pt;
text-align: left; color: black; border-width: 1pt
medium medium; border-style: solid none none;
border-color: rgb(181, 196, 223) -moz-use-text-color
-moz-use-text-color; padding: 3pt 0in 0in;"><span
style="font-weight: bold;">From: </span> burlen
<<a moz-do-not-send="true"
href="mailto:burlen.loring@gmail.com">burlen.loring@gmail.com</a>><br>
<span style="font-weight: bold;">Date: </span> Thu,
22 Mar 2012 22:41:37 -0600<br>
<span style="font-weight: bold;">To: </span> Joshua
Murphy <<a moz-do-not-send="true"
href="mailto:joshua.murphy@lasp.colorado.edu">joshua.murphy@lasp.colorado.edu</a>><br>
<span style="font-weight: bold;">Cc: </span> "<a
moz-do-not-send="true"
href="mailto:paraview@paraview.org">paraview@paraview.org</a>"
<<a moz-do-not-send="true"
href="mailto:paraview@paraview.org">paraview@paraview.org</a>><br>
<span style="font-weight: bold;">Subject: </span> Re:
[Paraview] Question on Information Objects<br>
</div>
<div><br>
</div>
<div>
<div bgcolor="#FFFFFF" text="#000000"> hi, information
keys are more for passing info between filters
through the pipeline. if all you want is to display
a string, you could make a second output port to
your reader that produces a vtkTable and populate it
with the string. This could be displayed in the pv
ui. here's a quick example of what you'd do in your
request data:<br>
<br>
<br>
315 vtkInformation *outInfo;<br>
316 vtkTable *output;<br>
317 vtkStringArray *data;<br>
318 <br>
319 // output port 1 -> bw data<br>
320
outInfo=outputVector->GetInformationObject(0);<br>
321 output<br>
322 =
dynamic_cast<vtkTable*>(outInfo->Get(vtkDataObject::DATA_OBJECT()));<br>
323 data=vtkStringArray::New();<br>
324 data->SetName("BW Data");<br>
325 data->SetNumberOfComponents(1);<br>
326 data->InsertNextValue(bwData.c_str());<br>
327 output->AddColumn(data);<br>
328 data->Delete();<br>
<br>
<br>
<br>
On 03/22/2012 03:38 PM, Joshua Murphy wrote:
<blockquote
cite="mid:CB91061F.1027%25joshua.murphy@lasp.colorado.edu"
type="cite">
<div><span class="Apple-style-span"
style="font-family: Helvetica; font-size:
medium;">Hello,</span>
<div style="font-family: Helvetica; font-size:
medium;"><br>
</div>
<div style="font-family: Helvetica; font-size:
medium;">I am trying to get meta-data
information from a file into ParaView. I have
successfully built the information key-value
pairs in the information object in my reader,
but I am uncertain how to get the data out on
the ParaView side of things.</div>
<div style="font-family: Helvetica; font-size:
medium;"><br>
</div>
<div style="font-family: Helvetica; font-size:
medium;">Example:</div>
<div style="font-family: Helvetica; font-size:
medium;"><br>
</div>
<div style="font-family: Helvetica; font-size:
medium;">I want to get the Calendar date
meta-data from my model file. I added Key to
the information object to the results info
object.</div>
<div style="font-family: Helvetica; font-size:
medium;"><br>
</div>
<div style="font-family: Helvetica; font-size:
medium;">I set keys as follows:</div>
<div style="font-family: Helvetica; font-size:
medium;"><br>
</div>
<div style="font-family: Helvetica; font-size:
medium;">
<pre style="margin: 0px; text-indent: 0px;"><font class="Apple-style-span" color="#7a7a7a"> request->AppendUnique(vtkExecutive::KEYS_TO_COPY(), vtkENLILMetaDataKeys::REFDATE_CAL());</font></pre>
<div><br>
</div>
</div>
<div style="font-family: Helvetica; font-size:
medium;"><br>
</div>
<div style="font-family: Helvetica; font-size:
medium;">I have a function to add the value to
the key like such:</div>
<div style="font-family: Helvetica; font-size:
medium;"><br>
</div>
<div style="font-family: Helvetica; font-size:
medium;">
<pre style="margin: 0px; text-indent: 0px;"><font class="Apple-style-span" color="#929292">void vtkENLILMetaDataKeys::populate_meta_data(vtkInformation* request, vtkInformationStringKey *key, char* value)</font></pre>
<pre style="margin: 0px; text-indent: 0px;"><font class="Apple-style-span" color="#929292">{</font></pre>
<pre style="margin: 0px; text-indent: 0px;"><font class="Apple-style-span" color="#929292"> request->Set(key, value);</font></pre>
<pre style="margin: 0px; text-indent: 0px;"><font class="Apple-style-span" color="#929292">}</font></pre>
<div><br>
</div>
</div>
<div style="font-family: Helvetica; font-size:
medium;"><br>
</div>
<div style="font-family: Helvetica; font-size:
medium;">I then add the values to the keys as
follows:</div>
<div style="font-family: Helvetica; font-size:
medium;"><br>
</div>
<div style="font-family: Helvetica; font-size:
medium;">
<pre style="margin: 0px; text-indent: 0px;"><font class="Apple-style-span" color="#929292"> vtkENLILMetaDataKeys::populate_meta_data(outInfo, vtkENLILMetaDataKeys::REFDATE_CAL(), temp);</font></pre>
<div><br>
</div>
</div>
<div style="font-family: Helvetica; font-size:
medium;">After I do this, I can successfully
pull the placed data from the information
object from within the reader.</div>
<div style="font-family: Helvetica; font-size:
medium;"><br>
</div>
<div style="font-family: Helvetica; font-size:
medium;">What I cannot figure out is how to
access this object from within Paraview.</div>
<div style="font-family: Helvetica; font-size:
medium;"><br>
</div>
<div style="font-family: Helvetica; font-size:
medium;">My goal is to be able to include the
calendar date (as text) in the render view. </div>
<div style="font-family: Helvetica; font-size:
medium;"><br>
</div>
<div style="font-family: Helvetica; font-size:
medium;">Can someone guide me in the correct
direction on how to do this? I am looking for
possibly a python way of getting at this data.</div>
<div style="font-family: Helvetica; font-size:
medium;"><br>
</div>
<div style="font-family: Helvetica; font-size:
medium;">Thanks,</div>
<div style="font-family: Helvetica; font-size:
medium;"><br>
</div>
<div style="font-family: Helvetica; font-size:
medium;">Josh</div>
<span class="Apple-style-span"
style="font-family: Helvetica; font-size:
medium;"><br>
</span></div>
<br>
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