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<p><font face="Courier New, Courier, monospace">Joachim,</font></p>
<p><font face="Courier New, Courier, monospace">Your plans for a VTK
& ParaView datum structure for a regular grid with
non-implicit cell geometry sounds good to me. However, my
interpretation of "mixed cell-type regular grid" may be based on
a gestalt on my part. I have in mind a particular mixed
cell-type, regular grid. The attached material demonstrates the
type of meshes I have in mind. They can also have
non-rectangular geometry, that is, curved non-uniform spacing
bounding block geometry. <br>
</font></p>
<p><font face="Courier New, Courier, monospace">Do your plans include
this case?</font><br>
</p>
Thanks in advance for the bother,<br>
<br>
Samuel W. Key PhD<br>
FMA Development, LLC<br>
1005 39th Avenue NE<br>
Great Falls, Montana 59404<br>
USA<br>
<br>
<br>
<div class="moz-cite-prefix">On 10/31/2016 6:10 AM, Joachim
Pouderoux wrote:<br>
</div>
<blockquote
cite="mid:CACJ=gTh9oUcRdfXZrXDy4Xoz_vRyC=6aWNKoMCF6FjgGqvw1Gg@mail.gmail.com"
type="cite">
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<div>Hi,<br>
<br>
</div>
For information, by the end of the year or in the beginning of
2017 we will introduce into VTK & ParaView a new data
structure to represent this kind of regular grid with non
implicit cell geometry. For now, as Kenneth said, you must pay
the price of using an Unstructured Grid to represent it.<br>
<br>
</div>
Best,<br>
</div>
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<div dir="ltr"><b>Joachim Pouderoux</b><font
size="2">, <font size="1">PhD</font></font><br>
<blockquote style="margin:0px 0px 0px
0.8ex;border-left:1px solid
rgb(204,204,204);padding-left:1ex"><font
size="1"><i>Technical Expert - Scientific
Computing Team</i></font><br>
<b><font size="1"><a moz-do-not-send="true"
href="http://www.kitware.fr"
target="_blank">Kitware SAS</a></font></b><br>
</blockquote>
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<br>
<div class="gmail_quote">2016-10-28 19:48 GMT-04:00 Moreland,
Kenneth <span dir="ltr"><<a moz-do-not-send="true"
href="mailto:kmorel@sandia.gov" target="_blank">kmorel@sandia.gov</a>></span>:<br>
<blockquote class="gmail_quote" style="margin:0 0 0
.8ex;border-left:1px #ccc solid;padding-left:1ex">
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<div class="m_1829369259851031364WordSection1">
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:Calibri">Chris,</span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:Calibri"> </span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:Calibri">Ultimately
to represent your data in the way you describe, you
will need to store it in an unstructured grid. Even
though your data are regular in the X and Y
directions, the structured data types will insist on
connecting the points of the cells, which you
explicitly stated that you do not want. The
unstructured grid does not have this restriction.
Although it can (and usually does) share points
across cells, it does not have to.</span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:Calibri"> </span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:Calibri">-Ken</span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:Calibri"> </span></p>
<div style="border:none;border-top:solid #b5c4df
1.0pt;padding:3.0pt 0in 0in 0in">
<p class="MsoNormal" style="margin-left:.5in"><b><span
style="font-family:Calibri;color:black">From:
</span></b><span
style="font-family:Calibri;color:black">ParaView
<<a moz-do-not-send="true"
href="mailto:paraview-bounces@paraview.org"
target="_blank">paraview-bounces@paraview.org</a><wbr>>
on behalf of Christian Gabriel <<a
moz-do-not-send="true"
href="mailto:cgabriel@matrix-solutions.com"
target="_blank">cgabriel@matrix-solutions.com</a><wbr>><br>
<b>Date: </b>Friday, October 28, 2016 at 6:06 AM<br>
<b>To: </b>"<a moz-do-not-send="true"
href="mailto:paraview@paraview.org"
target="_blank">paraview@paraview.org</a>" <<a
moz-do-not-send="true"
href="mailto:paraview@paraview.org"
target="_blank">paraview@paraview.org</a>><br>
<b>Subject: </b>[EXTERNAL] Re: [Paraview] Data
structure type</span></p>
</div>
<span class="">
<div>
<p class="MsoNormal" style="margin-left:.5in"> </p>
</div>
<p class="MsoNormal" style="margin-left:.5in"><span
style="font-size:11.0pt;font-family:Calibri;color:#1f497d">Thanks
Dave, I’ll take a closer look.</span></p>
<p class="MsoNormal" style="margin-left:.5in"><span
style="font-size:11.0pt;font-family:Calibri;color:#1f497d">I
think I’m still a little confused about cell based
data versus node based data at the top and bottom
of the cell ….</span></p>
<p class="MsoNormal" style="margin-left:.5in"><span
style="font-size:11.0pt;font-family:Calibri;color:#1f497d"> </span></p>
<p class="MsoNormal" style="margin-left:.5in"><span
style="font-size:11.0pt;font-family:Calibri;color:#1f497d">I
found this which was generated with Paraview, so I
know it can be done
</span><span
style="font-size:11.0pt;font-family:Wingdings;color:#1f497d">J</span></p>
<p class="MsoNormal" style="margin-left:.5in"><span
style="font-size:11.0pt;font-family:Calibri;color:#1f497d"> </span></p>
</span>
<p class="MsoNormal" style="margin-left:.5in"><img
id="m_1829369259851031364Picture_x005f_x0020_1"
src="cid:part7.E5EF4699.95EC3443@bresnan.net"
alt="id:image001.jpg@01D230F1.D9A2EA70" height="317"
width="376"></p>
<div>
<div class="h5">
<p class="MsoNormal" style="margin-left:.5in"><span
style="font-size:11.0pt;font-family:Calibri;color:#1f497d"> </span></p>
<p class="MsoNormal" style="margin-left:.5in"><span
style="font-size:11.0pt;font-family:Calibri;color:#1f497d"> </span></p>
<p class="MsoNormal" style="margin-left:.5in"><span
style="font-size:11.0pt;font-family:Calibri;color:#1f497d"> </span></p>
<p class="MsoNormal" style="margin-left:.5in"><span
style="font-size:11.0pt;font-family:Calibri;color:#1f497d"> </span></p>
<p class="MsoNormal" style="margin-left:.5in"><b><span
style="font-size:10.0pt;font-family:Tahoma">From:</span></b><span
style="font-size:10.0pt;font-family:Tahoma">
David E DeMarle [mailto:<a
moz-do-not-send="true"
href="mailto:dave.demarle@kitware.com"
target="_blank">dave.demarle@kitware.<wbr>com</a>]
<br>
<b>Sent:</b> October-28-16 7:32 AM<br>
<b>To:</b> Christian Gabriel<br>
<b>Cc:</b> <a moz-do-not-send="true"
href="mailto:paraview@paraview.org"
target="_blank">paraview@paraview.org</a><br>
<b>Subject:</b> Re: [Paraview] Data structure
type</span></p>
<p class="MsoNormal" style="margin-left:.5in"> </p>
<p style="margin-left:.5in">Try vtkStructuredGrid
and the Cell Data to Point Data filter.</p>
<p style="margin-left:.5in">hth</p>
<div>
<p class="MsoNormal" style="margin-left:.5in"> </p>
<div>
<p class="MsoNormal" style="margin-left:.5in">On
Oct 27, 2016 9:30 PM, "Christian Gabriel" <<a
moz-do-not-send="true"
href="mailto:cgabriel@matrix-solutions.com"
target="_blank">cgabriel@matrix-solutions.com</a><wbr>>
wrote:</p>
<div>
<div>
<p class="MsoNormal"
style="margin-left:.5in">
Good day.</p>
<p class="MsoNormal"
style="margin-left:.5in">
</p>
<p class="MsoNormal"
style="margin-left:.5in">
I’m looking into Paraview for 3D
visualisation of modelling results from an
integrated surface water/groundwater
model.</p>
<p class="MsoNormal"
style="margin-left:.5in">
</p>
<p class="MsoNormal"
style="margin-left:.5in">
The model domain is discretized as a
uniform rectilinear grid; calculations are
performed for the grid centroids.
</p>
<p class="MsoNormal"
style="margin-left:.5in">
However, the vertical extent of a grid
cell is described by a top and bottom
elevation, constant over the cell.</p>
<p class="MsoNormal"
style="margin-left:.5in">
This results in a staggered arrangement of
cells (kinda like Lego blocks) in
cross-section view:</p>
<p class="MsoNormal"
style="margin-left:.5in">
</p>
<table
class="m_1829369259851031364MsoNormalTable"
style="width:516.05pt;margin-left:.5in;border-collapse:collapse"
border="0" cellpadding="0" cellspacing="0"
width="688">
<tbody>
<tr style="height:153.05pt">
<td style="width:195.3pt;padding:0in
5.4pt 0in 5.4pt;height:153.05pt"
valign="top" width="260">
<p class="MsoNormal"><img
id="m_1829369259851031364m_-2779410835549953872Picture_x005f_x0020_2"
src="cid:part11.E14C1DA6.DE421D23@bresnan.net" height="261" border="0"
width="246"></p>
</td>
<td style="width:66.95pt;padding:0in
5.4pt 0in 5.4pt;height:153.05pt"
width="89">
<p class="MsoNormal"
style="text-align:right"
align="right">
<b><u>NOT:</u></b></p>
</td>
<td style="width:253.8pt;padding:0in
5.4pt 0in 5.4pt;height:153.05pt"
valign="top" width="338">
<p class="MsoNormal"><img
id="m_1829369259851031364m_-2779410835549953872Picture_x005f_x0020_4"
src="cid:part12.AA33F7E7.8BC1D294@bresnan.net" height="265" border="0"
width="325"></p>
</td>
</tr>
</tbody>
</table>
<p class="MsoNormal"
style="margin-left:.5in">
</p>
<p class="MsoNormal"
style="margin-left:.5in">
</p>
<p class="MsoNormal"
style="margin-left:.5in">
I’m wondering what data type/structure I
would use for this kind of data?</p>
<p class="MsoNormal"
style="margin-left:.5in">
</p>
<p class="MsoNormal"
style="margin-left:.5in">
Also, is there an easy way/filter in
Paraview to re-project/interpolate the
centre based (const) elevation data to the
corners/nodes of the uniform rectilinear
“horizontal” grid, which would allow for a
display as shown on the right (instead of
staggered)?</p>
<p class="MsoNormal"
style="margin-left:.5in">
</p>
<p class="MsoNormal"
style="margin-left:.5in">
Thanks a lot,</p>
<p class="MsoNormal"
style="margin-left:.5in">
</p>
<p class="MsoNormal"
style="margin-left:.5in">
Chris</p>
<p class="MsoNormal"
style="margin-left:.5in">
</p>
</div>
</div>
<p class="MsoNormal"
style="margin-right:0in;margin-bottom:12.0pt;margin-left:.5in">
<br>
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