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<p class="MsoNormal"><span lang="EN-GB">Ok. Let me rephrase my question. Maybe someone speaks Matlab? Full Matlab Code below (see [1]).
<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB">Let’s assume I have a 2x2 matrix with color values C=[1 2; 3 4]. Now I can visualize this matrix with on a 2x2 grid with surf in Matlab. What I get is one square with the color values on each node (see Case 1 in the Matlab
code). This is what Paraview does!<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB">What I want is the following: I define a new grid, which is 3x3. So one value more in each direction than I have color values. On this grid the color values live cell-centered. If I now visualize this in Matlab, I get
a 2x2 block matrix with color values from 1-4. This is what I want!<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB">To sum up: I want to keep my color values, but I want to define a new cell-centered grid (with size(C,1)+1) where these color values live on. Is this somehow possible in Paraview?<br>
<br>
Thank you!<br>
Henrik<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB">[1] <o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB">% Full Matlab Code to visualize the two cases.
<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB">C = [1 2; 3 4];<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB">% Case 1<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB">x=linspace(0,1,size(C,1));<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB">y=x;<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB">[X,Y]=meshgrid(x,y);<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB">Z=zeros(size(C));<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB">figure;surf(X,Y,Z,C);shading interp;view(0,90);<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB">colorbar<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB">% Case 2<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB">x=linspace(0,1,size(C,1)+1);<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB">y=x;<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB">[X,Y]=meshgrid(x,y);<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB">Z=zeros(size(C)+1);<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB">figure;surf(X,Y,Z,C);shading flat;view(0,90);<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB">colorbar<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span lang="EN-GB" style="font-family:"Courier New";mso-fareast-language:DE">--
<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="font-family:"Courier New";mso-fareast-language:DE">Dipl.-Math. Henrik Büsing<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="font-family:"Courier New";mso-fareast-language:DE">Institute for Applied Geophysics and Geothermal Energy<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="font-family:"Courier New";mso-fareast-language:DE">E.ON Energy Research Center<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="font-family:"Courier New";mso-fareast-language:DE">RWTH Aachen University<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="font-family:"Courier New";mso-fareast-language:DE"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier New";mso-fareast-language:DE">Mathieustr. 10 | Tel +49 (0)241 80 49907<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier New";mso-fareast-language:DE">52074 Aachen, Germany | Fax +49 (0)241 80 49889<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier New";mso-fareast-language:DE"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier New";mso-fareast-language:DE">http://www.eonerc.rwth-aachen.de/GGE<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier New";mso-fareast-language:DE">hbuesing@eonerc.rwth-aachen.de<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal"><b><span style="mso-fareast-language:DE">Von:</span></b><span style="mso-fareast-language:DE"> ParaView [mailto:paraview-bounces@paraview.org]
<b>Im Auftrag von </b>Buesing, Henrik<br>
<b>Gesendet:</b> Freitag, 19. Januar 2018 21:13<br>
<b>An:</b> paraview@paraview.org<br>
<b>Betreff:</b> [Paraview] Visualize equdistant cell-centered data<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span lang="EN-GB">Dear all, <o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB">I have a “Structured (Curvilinear) Grid” (*.vts), which gets read in as 314531 cells and 330000 points. I would like to tell Paraview that this is equidistant cell-centered data (330000 cells). I want every cell to get
one color, such that color interpolation becomes correct. <o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB">Can I somehow convert the data I have? <o:p>
</o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB">Thank you!<br>
Henrik Büsing</span><span style="font-family:"Courier New";mso-fareast-language:DE"><o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
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