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<p>Hi!</p>
<p>Yes, I of course understand your point. There is a bit of a problem though: In reality, this file is much more bigger and deleting the NaNs by hand is not an option (also I am trying to make it all happen automatically). If I ask matlab to delete the zeros
from my file, the shape of the matrix will change, so the only solution I found so far is to replace the zeros by NaNs in matlab, which gives me error in paraview, for the reason you, Moreland, explained.</p>
<p>So my question would be again, is it possible to replace it with anything else?</p>
<p>Thank you!</p>
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<div id="divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" style="font-size:11pt" color="#000000"><b>From:</b> Moreland, Kenneth <kmorel@sandia.gov><br>
<b>Sent:</b> November 14, 2017 12:24:03 AM<br>
<b>To:</b> Doina Gumeniuc (224252 MAHS); Mathieu Westphal; paraview@paraview.org<br>
<b>Subject:</b> Re: [Paraview] NaN values</font>
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<p class="x_MsoNormal">Doina,</p>
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<p class="x_MsoNormal">vtk files support Nan’s in general. (I just tried it. It worked fine.) However, you are trying to introduce NaN’s in a list of integer connections, which is just wrong on many levels. However, I do not see why you need NaN at all. The
LINES connectivity list allows you to vary the length of the line chain.</p>
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<p class="x_MsoNormal">It looks like you can solve your problem by simply not writing out the NaN’s in the fill. In the example you sent us, I presume that you mean to have 4 line cells with 2, 3, 2, and 2 vertices, respectively. The following should be the
correct representation of that:</p>
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<p class="x_MsoNormal">LINES 4 13</p>
<p class="x_MsoNormal">2 0 1</p>
<p class="x_MsoNormal">3 1 2 3</p>
<p class="x_MsoNormal">2 3 4</p>
<p class="x_MsoNormal">2 4 5</p>
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<p class="x_MsoNormal">-Ken</p>
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<p class="x_MsoNormal" style="margin-left:.5in"><b><span style="font-size:12.0pt; color:black">From:
</span></b><span style="font-size:12.0pt; color:black">ParaView <paraview-bounces@paraview.org> on behalf of "Doina Gumeniuc (224252 MAHS)" <224252@via.dk><br>
<b>Date: </b>Monday, November 13, 2017 at 12:55 PM<br>
<b>To: </b>Mathieu Westphal <mathieu.westphal@kitware.com>, "paraview@paraview.org" <paraview@paraview.org><br>
<b>Subject: </b>[EXTERNAL] Re: [Paraview] NaN values</span></p>
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<p style="margin-left:.5in"><span style="font-size:12.0pt; color:black">Hi Mathieu,</span></p>
<p style="margin-left:.5in"><span style="font-size:12.0pt; color:black">Sadly I can not import the whole file, but here is an example:</span></p>
<p style="margin-left:.5in"><span style="font-size:12.0pt; color:black"> </span></p>
<p style="margin-left:.5in"><span style="font-size:12.0pt; color:black">LINES 4 13</span></p>
<p style="margin-left:.5in"><span style="font-size:12.0pt; color:black">2 0 1 NaN</span></p>
<p style="margin-left:.5in"><span style="font-size:12.0pt; color:black">3 1 2 3</span></p>
<p style="margin-left:.5in"><span style="font-size:12.0pt; color:black">2 3 4 NaN</span></p>
<p style="margin-left:.5in"><span style="font-size:12.0pt; color:black">2 4 5 NaN</span></p>
<p style="margin-left:.5in"><span style="font-size:12.0pt; color:black"> </span></p>
<p style="margin-left:.5in"><span style="font-size:12.0pt; color:black">I make the vtk file in matlab by extracting the information from a .dat file. Originally, instead of NaN there are zeros, but I just need blanks without changing the shape of the matrix,
which is why I use NaN, but it gives me error in paraview.</span></p>
<p style="margin-left:.5in"><span style="font-size:12.0pt; color:black"> </span></p>
<p style="margin-left:.5in"><span style="font-size:12.0pt; color:black">I hope it explains what I mean. Thank you!</span></p>
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<p class="x_MsoNormal" style="margin-left:.5in"><b><span style="color:black">From:</span></b><span style="color:black"> Mathieu Westphal <mathieu.westphal@kitware.com><br>
<b>Sent:</b> November 13, 2017 4:29:18 PM<br>
<b>To:</b> Doina Gumeniuc (224252 MAHS)<br>
<b>Cc:</b> paraview@paraview.org<br>
<b>Subject:</b> Re: [Paraview] NaN values</span> </p>
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Hi</p>
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Can you share your dataset ?</p>
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<p class="x_MsoNormal" style="margin-left:.5in">Thanks,</p>
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<p class="x_MsoNormal" style="margin-left:.5in">Mathieu Westphal</p>
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<p class="x_MsoNormal" style="margin-left:.5in">On Mon, Nov 13, 2017 at 4:10 PM, Doina Gumeniuc (224252 MAHS) <<a href="mailto:224252@via.dk" target="_blank">224252@via.dk</a>> wrote:</p>
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<p style="margin-left:.5in"><span style="font-size:12.0pt; color:black">Hi Mathieu,</span></p>
<p style="margin-left:.5in"><span style="font-size:12.0pt; color:black"> </span></p>
<p style="margin-left:.5in"><span style="font-size:12.0pt; color:black">I am using a vtk poly data file, which when I load in paraview, it gives me error (paraview just stops working). I was thinking it is because of my NaN values.</span></p>
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<p class="x_MsoNormal" style="margin-left:.5in"><b><span style="color:black">From:</span></b><span style="color:black"> Mathieu Westphal <<a href="mailto:mathieu.westphal@kitware.com" target="_blank">mathieu.westphal@kitware.com</a>><br>
<b>Sent:</b> November 13, 2017 2:53:19 PM<br>
<b>To:</b> Doina Gumeniuc (224252 MAHS)<br>
<b>Cc:</b> <a href="mailto:paraview@paraview.org" target="_blank">paraview@paraview.org</a><br>
<b>Subject:</b> Re: [Paraview] NaN values</span> </p>
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<p class="x_MsoNormal" style="margin-left:.5in">Hi<br>
<br>
ParaView understand NaN correctly as blanks.</p>
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If you are reading a .csv file, the correct string that is interpreted as NaN is "nan" without the quotes.</p>
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<p class="x_MsoNormal" style="margin-left:.5in">Best,</p>
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<p class="x_MsoNormal" style="margin-left:.5in">Mathieu Westphal</p>
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<p class="x_MsoNormal" style="margin-left:.5in">On Mon, Nov 13, 2017 at 2:48 PM, Doina Gumeniuc (224252 MAHS) <<a href="mailto:224252@via.dk" target="_blank">224252@via.dk</a>> wrote:</p>
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<p style="margin-left:.5in"><span style="font-size:12.0pt; color:black">Hi all,</span></p>
<p style="margin-left:.5in"><span style="font-size:12.0pt; color:black"> </span></p>
<p style="margin-left:.5in"><span style="font-size:12.0pt; color:black">I have a file with NaN values in almost every column and row. The integer numbers represent which points should be connected by lines, therefor I can not replace NaN with zeros because
it will interpret it as Point with ID 0. </span></p>
<p style="margin-left:.5in"><span style="font-size:12.0pt; color:black">Is there any way I can replace this NaNs with something which paraview reads as blanks?</span></p>
<p style="margin-left:.5in"><span style="font-size:12.0pt; color:black">Thank you!</span></p>
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