Hi, I have the same question as Adrian, but my dataset are all in one file, xyz, temperature, pressure and .. what reader should I use to display the points.<br><br>
<div><span class="gmail_quote">On 4/7/08, <b class="gmail_sendername">Adrian Albert</b> <<a href="mailto:a.albert@jacobs-university.de">a.albert@jacobs-university.de</a>> wrote:</span>
<blockquote class="gmail_quote" style="PADDING-LEFT: 1ex; MARGIN: 0px 0px 0px 0.8ex; BORDER-LEFT: #ccc 1px solid">Hi<br><br><br>Thanks so much for the reply! My previous post was indeed rather vague, so here are some clarifications:<br>
<br>1) I would like to read data over the same regular grid from multiple files (at each point in a 3D regular grid I have several physical fields such as temperature, pressure, etc, stored each in a separate file)<br><br>
2) I am now using vtkImageAppendComponent to construct a multidimensional data object defined over a 3D regular grid:<br>*<br> vtkStructuredPointsReader *reader = vtkStructuredPointsReader::New();<br> reader->SetFileName(fname);<br>
reader->Update();<br> vtkStructuredPointsReader *reader1 = vtkStructuredPointsReader::New();<br> reader1->SetFileName(fname2);<br> reader1->Update();<br> vtkImageAppendComponents *readerBundle = vtkImageAppendComponents::New ();<br>
readerBundle->AddInput (reader->GetOutput ());<br> readerBundle->AddInput (reader1->GetOutput ());<br>*<br>However, I don't know how to access the individual data fields from this object to manipulate them. Any suggestions?<br>
<br>3) This multifield object I want to pass to a class that is subclassed from vtkScalarsToColors that could compute a transfer function for volume rendering based on this data. Is there a way to achieve that via the SetInputPort(myObject->GetOutputPort()) mechanism? <br>
<br>4) If I were to use vtkPointData or vtkCellData, how can I store the outputs of several vtkStructuredPointsReader (which operate on one file only) into a single vtkPointData object?<br><br>5) Does vtkFixedPointVolumeRayCastMapper accept a vtkPointData->GetOutputPort() at its input port?<br>
<br>Thanks again for helping!<br><span class="sg"><br>Adrian</span><span class="q"><br><br>
<div class="gmail_quote">On Mon, Apr 7, 2008 at 9:34 AM, Mathieu Malaterre <<a onclick="return top.js.OpenExtLink(window,event,this)" href="mailto:mathieu.malaterre@gmail.com" target="_blank">mathieu.malaterre@gmail.com</a>> wrote:<br>
<blockquote class="gmail_quote" style="PADDING-LEFT: 1ex; MARGIN: 0pt 0pt 0pt 0.8ex; BORDER-LEFT: rgb(204,204,204) 1px solid">Hi Adrian,<br>
<div><br>On Thu, Apr 3, 2008 at 10:10 AM, Adrian Albert<br><<a onclick="return top.js.OpenExtLink(window,event,this)" href="mailto:a.albert@jacobs-university.de" target="_blank">a.albert@jacobs-university.de</a>> wrote:<br>
> Does anyone know how to read data from multiple files into the same<br>> vtkImageData object?<br><br> </div>what file format are you talking about ?<br><br><a onclick="return top.js.OpenExtLink(window,event,this)" href="http://www.vtk.org/Wiki/VTK_FAQ#What_image_file_formats_can_VTK_read_and_write.3F" target="_blank">http://www.vtk.org/Wiki/VTK_FAQ#What_image_file_formats_can_VTK_read_and_write.3F</a><br>
<div><br>> Does VTK even support multi-dimensional fields defined<br>> over a 3D domain?<br><br> </div>yes, see the vtkPointData / vtkCellData classes.<br><br>> --<br>
<div>> ---------------------------------------------------<br>> Adrian Albert<br>> School of Engineering and Science<br>> Jacobs University Bremen<br>> Germany<br>> Tel.: 00494212003258<br> </div>> _______________________________________________<br>
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><br>><br><br><br><br>--<br><font color="#888888">Mathieu<br></font></blockquote></div><br><br clear="all"><br></span>-- <br>
<div><span class="e" id="q_119283b6bb1461a7_4">---------------------------------------------------<br>Adrian Albert<br>School of Engineering and Science<br>Jacobs University Bremen<br>Germany<br>Tel.: 00494212003258 </span></div>
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