FYI: I will take care of the wrong documentation. Not today and probably not tomorrow but soon :)<br><br>Andy<br><br><div class="gmail_quote">On Tue, Mar 22, 2011 at 3:07 PM, Simon Su <span dir="ltr"><<a href="mailto:newsgroup4ssu@gmail.com">newsgroup4ssu@gmail.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;">Hi Ken,<br><br>This is great. I will work with the scientific programming team that came up with the file to see if we can go anywhere with it. Thank you so much for taking the time to look into the file. <br>
<br>best<br><font color="#888888">
-simon</font><div><div></div><div class="h5"><br><br><div class="gmail_quote">On Tue, Mar 22, 2011 at 2:22 PM, Moreland, Kenneth <span dir="ltr"><<a href="mailto:kmorel@sandia.gov" target="_blank">kmorel@sandia.gov</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
<div style="word-wrap: break-word; color: rgb(0, 0, 0); font-size: 14px; font-family: Calibri,sans-serif;">
<div>
<div>
<div>Simon,</div>
<div><br>
</div>
<div>After taking a look at your zos_*.nc file, I believe the problem is that the bounds variables (specifically lon_vertices and lat_vertices) are incorrect and causing malformed cells. The proper format for these variables according to the CF convention
is documented here – <a href="http://cf-pcmdi.llnl.gov/documents/cf-conventions/1.5/ch07.html#cell-boundaries" target="_blank">http://cf-pcmdi.llnl.gov/documents/cf-conventions/1.5/ch07.html#cell-boundaries</a> – under "Bounds for 2-D coordinate variables with 4-sided cells".
These variables are referred to as lonbnd and latbnd in the CF documentation, but otherwise the name is inconsequential.</div>
<div><br>
</div>
<div>These bounds variables are supposed to contain a 4-tuple for each cell in the grid. The 4 values in each tuple specify the longitude or latitude coordinates in counterclockwise order starting with the "lower left" value. Adjacent cells should have duplicate
longitude and latitude coordinates where appropriate.</div>
<div><br>
</div>
<div>So, assuming that the bounds of the first cell (which I am extrapolating from other coordinate variables in the zos file) is –280 to –279 in the longitude direction and –82 to –81 in the latitude direction, then the first 4-tuple in lon_vertices should
be [–280, –279, –279, –280] and the first tuple in lat_vertices should be [–82, –82, –81, –81]. The next entries in the lon_vertices and lat_vertices arrays are for the adjacent cell in the horizontal direction and should be [–279, –278, –278, –279] and [–82, –82, –81, –81],
respectively.</div>
<div><br>
</div>
<div>In this regard, the values stored in zon*.nc's lon_vertices and lat_vertices are nonsensical. ncdump shows the first two entries of each as:</div>
<div><br>
</div>
<blockquote style="border: medium none; margin: 0pt 0pt 0pt 40px; padding: 0px;">
<div>
<div><span style="font-family: Consolas;"> lon_vertices =</span></div>
<div><span style="font-family: Consolas;"> -280, -279, -278, -277,</span></div>
<div><span style="font-family: Consolas;"> -276, -275, -274, -273,</span></div>
</div>
<div><span style="font-family: Consolas;"><br>
</span></div>
<div><span style="font-family: Consolas;">
<div> lat_vertices =</div>
<div> -82, -82, -82, -82,</div>
<div> -82, -82, -82, -82,</div>
</span></div>
</blockquote>
<div><font size="2"><font face="Consolas,Courier New,Courier"><span style="font-size: 10pt;"><br>
</span></font></font></div>
<div><font face="Consolas,Courier New,Courier"><span style="font-family: Calibri;">As you can see, these bounds do not form proper quadrilaterals. They are all degenerate polygons on the –82 latitude coordinate. My guess is that whatever wrote out this file
mistook the format for boundary variables for coordinate variables.</span></font></div><div>
<div><font face="Consolas,Courier New,Courier"><span style="font-family: Calibri;"><br>
</span></font></div>
<div><font face="Consolas,Courier New,Courier"><span style="font-family: Calibri;">-Ken</span></font></div>
<div><font size="2"><font face="Consolas,Courier New,Courier"><span style="font-size: 10pt;"><br>
**** Kenneth Moreland<br>
*** Sandia National Laboratories<br>
*********** <br>
*** *** *** email: <a href="http://kmorel@sandia.gov" target="_blank">kmorel@sandia.gov</a><br>
** *** ** phone: <a href="tel:%28505%29%20844-8919" target="_blank">(505) 844-8919</a><br>
*** web: <a href="http://www.cs.unm.edu/%7Ekmorel" target="_blank">http://www.cs.unm.edu/~kmorel</a><br>
</span></font></font></div>
</div></div>
</div>
<div><br>
</div>
<span>
<div style="border-style: solid none none; border-color: rgb(181, 196, 223) -moz-use-text-color -moz-use-text-color; border-width: 1pt medium medium; padding: 3pt 0in 0in; font-family: Calibri; font-size: 11pt; text-align: left; color: black;">
<div>
<span style="font-weight: bold;">From: </span>Simon Su <<a href="mailto:newsgroup4ssu@gmail.com" target="_blank">newsgroup4ssu@gmail.com</a>><br>
</div><span style="font-weight: bold;">Date: </span>Tue, 22 Mar 2011 11:40:46 -0400<div><div></div><div><br>
<span style="font-weight: bold;">To: </span>Kenneth Moreland <<a href="mailto:kmorel@sandia.gov" target="_blank">kmorel@sandia.gov</a>><br>
<span style="font-weight: bold;">Cc: </span>Andy Bauer <<a href="mailto:andy.bauer@kitware.com" target="_blank">andy.bauer@kitware.com</a>>, "<a href="mailto:paraview@paraview.org" target="_blank">paraview@paraview.org</a>" <<a href="mailto:paraview@paraview.org" target="_blank">paraview@paraview.org</a>><br>
<span style="font-weight: bold;">Subject: </span>Re: [Paraview] loading nc formatted data<br>
</div></div></div><div><div></div><div>
<div><br>
</div>
Hi Ken,<br>
<br>
Thank you again for your help.<br>
<br>
Is there another wiki page that also describe all the xml used syntax in the <a href="http://www.vtk.org/Wiki/ParaView/Plugin_HowTo" target="_blank">
http://www.vtk.org/Wiki/ParaView/Plugin_HowTo</a> ? It may help for me to have an overall picture of the xml syntax used? thanks. And is there a complete example out there that show the whole process on how one can create a custom data loader plugin into ParaView?
Not sure if I am saying this correctly but something like, say I have this data file in my own format that has grid information and a scalar variable. How do I write a data loader plugin so that I can use ParaView to visualize the data. Then if I have to guess,
first you write this xml file to describe the data loader plugin to ParaView and then use use sort of utility to generate the plugin standard code, and then implement the function in the code to load and create your vtk data structure (grid data type and scalar
variable data type) and then pass it to ParaView. something like that? thanks...
<br>
<br>
yes. it make sense that it is a part of VTK. ParaView is to expose VTK functionality after all.
<br>
<br>
good thing is, I think we settle on a single large nc file that has all the information needed to plot the visualization, including tripolar grid information. Hopefully that will simplify things for me.<br>
<br>
I am sorry that the ftp site is not behaving. I have placed the files at <a href="http://www.cs.uh.edu/%7Essu/4ParaView" target="_blank">
http://www.cs.uh.edu/~ssu/4ParaView</a> together with the nc file I used to generate the image 4.png (what looks like a double grid to me) and 5.png (coloring by the variable zos which I don't thin it should look like that ) Hopefully vtkNetCDFCFReader will
do the job for me.<br>
<br>
thanks<br>
-simon<br>
<br>
<br>
<br>
<div class="gmail_quote">On Mon, Mar 21, 2011 at 7:12 PM, Moreland, Kenneth <span dir="ltr">
<<a href="mailto:kmorel@sandia.gov" target="_blank">kmorel@sandia.gov</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
<div style="word-wrap: break-word; color: rgb(0, 0, 0); font-size: 14px; font-family: Calibri,sans-serif;">
<div>
<div>
<div>It looks like the documentation for a reader plugin is slightly messed up. I'll leave it to Andy (or anyone who is not me) to fix. The example in the ParaView source does not list a file in SERVER_MANAGER_SOURCES because it uses a source (vtkPNGReader.cxx)
that is already compiled as part of VTK. The Wiki is trying to capture the fact that usually you are building a plugin with your own reader, and you will have to list your source code for the reader there. vtkMyPNGReader.cxx is just a stand in for some reader
that you wrote. It probably does not really exist. I noticed, however, that the Wiki documentation is also wrong in that the XML file is pointing to the vtkPNGReader class when the CMake configuration is implying that it should be pointing to the (imaginary)
vtkMyPNGReader class.</div>
<div><br>
</div>
<div>The vtkNetCDFCFReader.cxx file is located in ParaView/VTK/IO/vtkNetCDFCFReader.cxx. Don't get too wrapped up around the complexity of the NetCDF reader definition in readers.xml. It's complicated because it supports defining a time series as a collection
of files (<a href="http://www.vtk.org/Wiki/Animating_legacy_VTK_file_series#Making_custom_readers_work_with_file_series" target="_blank">http://www.vtk.org/Wiki/Animating_legacy_VTK_file_series#Making_custom_readers_work_with_file_series</a>). If you collect
all times in a single netCDF file (or don't have time steps), you can skip all that and just define a new object much like that of netCDFReaderCore in reader.xml (in the sources ProxyGroup of course).</div>
<div><br>
</div>
<div>That said, I think this should all be unnecessary since the CF convention (and ParaView reader) already contains a means of defining cells that bridge across these seems. I suspect it has nothing to do with the CF convention version. It is probably that
your data files with openings at the seems are not defining a bounds attribute, which is optional in CF. If you could post some example data (or even the listing of the file header from ncdump) I might be able to verify that.</div>
<div><br>
</div>
<div>I'm not sure what is going on with the new data set (4.png). I can't comment on it much because your ftp server seems to be broken for me and I don't remember the image too well. At any rate, I would probably say something like I couldn't tell you what
was going on without seeing the nc file.</div>
<div>
<div><br>
</div>
<div>-Ken</div>
<div><font size="2"><font face="Consolas,Courier New,Courier"><span style="font-size: 10pt;"><br>
**** Kenneth Moreland<br>
*** Sandia National Laboratories<br>
*********** <br>
*** *** *** email: <a href="http://kmorel@sandia.gov" target="_blank">kmorel@sandia.gov</a><br>
** *** ** phone: <a href="tel:%28505%29%20844-8919" target="_blank">(505) 844-8919</a><br>
*** web: <a href="http://www.cs.unm.edu/%7Ekmorel" target="_blank">http://www.cs.unm.edu/~kmorel</a><br>
</span></font></font></div>
</div>
</div>
</div>
<div><br>
</div>
<span>
<div style="border-style: solid none none; border-color: rgb(181, 196, 223) -moz-use-text-color -moz-use-text-color; border-width: 1pt medium medium; padding: 3pt 0in 0in; font-family: Calibri; font-size: 11pt; text-align: left; color: black;">
<div><span style="font-weight: bold;">From: </span>Simon Su <<a href="mailto:newsgroup4ssu@gmail.com" target="_blank">newsgroup4ssu@gmail.com</a>><br>
</div>
<span style="font-weight: bold;">Date: </span>Mon, 21 Mar 2011 15:19:24 -0400<br>
<span style="font-weight: bold;">To: </span>Kenneth Moreland <<a href="mailto:kmorel@sandia.gov" target="_blank">kmorel@sandia.gov</a>><br>
<span style="font-weight: bold;">Cc: </span>Andy Bauer <<a href="mailto:andy.bauer@kitware.com" target="_blank">andy.bauer@kitware.com</a>>, "<a href="mailto:paraview@paraview.org" target="_blank">paraview@paraview.org</a>" <<a href="mailto:paraview@paraview.org" target="_blank">paraview@paraview.org</a>>
<div>
<div></div>
<div><br>
<span style="font-weight: bold;">Subject: </span>Re: [Paraview] loading nc formatted data<br>
</div>
</div>
</div>
<div>
<div></div>
<div>
<div><br>
</div>
Hi Ken,<br>
<br>
Thank you for explaining. <br>
<br>
<div class="gmail_quote">
<blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
<div style="word-wrap: break-word; color: rgb(0, 0, 0); font-size: 14px; font-family: Calibri,sans-serif;">
<div>
<div>
<div>The reader that is being used is vtkNetCDFCFReader. It is defined in ParaView/Servers/ServerManager/Resources/readers.xml, although it is not obvious.</div>
<div><font size="2"><font face="Consolas,Courier New,Courier"><span style="font-size: 10pt;"><br>
</span></font></font></div>
</div>
</div>
</div>
</blockquote>
<div><br>
Can you (or Andy) point me to documentation more documentation beside <a href="http://www.vtk.org/Wiki/ParaView/Plugin_HowTo" target="_blank">
http://www.vtk.org/Wiki/ParaView/Plugin_HowTo</a> ? Andy also metioned readers.xml file you mentioned. But after going through ParaView/Servers/
<div>ServerManager/Resources/readers.xml, I am still fuzzy about where the file vtkNetCDFCFReader.cxx ( if any - I would like to know how it is implemented and maybe start by modifying it in my learning process). The plugin wiki page on "Adding a Reader" section
mentioned CMakeList.txt file<br>
<br>
<pre><font color="violet">FIND_PACKAGE</font>(ParaView <font color="purple">REQUIRED</font>)<br><font color="violet">INCLUDE</font>(${PARAVIEW_USE_FILE})<br> <font color="violet">ADD_PARAVIEW_PLUGIN</font>(MyReader "1.0" <br>
<font color="purple">SERVER_MANAGER_XML</font> MyPNGReader.xml<br> <font color="purple">SERVER_MANAGER_SOURCES</font> vtkMyPNGReader.cxx <br> <font color="purple">GUI_RESOURCE_FILES</font> MyReaderGUI.xml)<br></pre>
<br>
but the one on my source tree ParaView-3.10.0/Examples/Plugins/Reader/CMakeList.txt looks like<br>
<br>
</div>
ADD_PARAVIEW_PLUGIN(MyPNGReader "1.0"<br>
SERVER_MANAGER_XML readers.xml<br>
GUI_RESOURCE_FILES pqReader.xml<br>
)<br>
<br>
note no vtkMyPNGReader.cxx file mention and the file is also not in the directory. I also did a search on source tree for vtkNetCDFCFReader.cxx file but can't find it. I think I am missing a big piece of something since I am not getting the point that I should
be getting after looking at readers.xml. In fact, I can't find any of the netcdf file readers (other than CF reader). It is also not listed under my Plugin Manager GUI on the ParaView that I compiled but it is loading the CF convention nc file. Are they (the
*.cxx files) generated on the fly during compile time? <br>
<br>
Another thing, besides <a href="http://www.paraview.org/Wiki/VisIt_Database_Bridge" target="_blank">
http://www.paraview.org/Wiki/VisIt_Database_Bridge</a> , is there a place that I can find how to use that VisIt bridge in ParaView. Maybe an example of how to load silo file? I actually have a plugin of my own in VisIt that can load the climate modeling data
that I have. I would like to see if I can use my VisIt plugin in ParaView and not write another plugin for ParaView? :)
<br>
<br>
</div>
<blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
<div style="word-wrap: break-word; color: rgb(0, 0, 0); font-size: 14px; font-family: Calibri,sans-serif;">
<div>
<div>
<div><font size="2"><font face="Consolas,Courier New,Courier"><span style="font-size: 10pt;"></span></font></font></div>
<div><font size="2"><font face="Consolas,Courier New,Courier"><span style="font-size: 10pt;"><span style="font-size: 14px; font-family: Calibri,sans-serif;">
<div>As the name implies, this reader reads netCDF files using the CF convention. (As the default netCDF reader, it also gracefully handles files that do not follow this convention.) With this assumption, I will try to explain what it does. It reads arrays
as regular 1, 2, or 3D arrays, possibly with time. The CF convention also provides a means to assign coordinates to each grid point and to identify the coordinates as longitude or latitude.</div>
<div><br>
</div>
</span></span></font></font></div>
</div>
</div>
</div>
</blockquote>
<div><br>
The published nc files we have do adhere to CF convention we also use CMOR in one of the pipeline. I noticed Data_tos_O1_2001-2002.nc is at CF-1.0 and since I am new at CF Convention, I can only speculate that what I see at
<a href="ftp://ftp.gfdl.noaa.gov/pub/sms/4ParaView/4.png" target="_blank">ftp://ftp.gfdl.noaa.gov/pub/sms/4ParaView/4.png</a> with what looks like double grid is due to difference between CF-1.0 and CF-1.4? Will vtkNetCDFCFReader handle CF-1.4 data?<br>
<br>
<br>
</div>
<blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
<div style="word-wrap: break-word; color: rgb(0, 0, 0); font-size: 14px; font-family: Calibri,sans-serif;">
<div>
<div>
<div><font size="2"><font face="Consolas,Courier New,Courier"><span style="font-size: 10pt;"><span style="font-size: 14px; font-family: Calibri,sans-serif;">
<div></div>
<div>Even though coordinates are defined as longitude and latitude, the topology of the grid itself is still a grid. Thus, the grid gets wrapped around, but still has these seems that you see because topologically the one end of the regular grid is not attached
to the other. I can't think of any filter that will identify and close these seems. In fact, it's not straightforward to do at all. If you look at your topology, it is not lain out on a simple spherical grid.</div>
<div><br>
</div>
<div>The "right" way to solve your problem, which may or may not be in your control, is to create netCDF files that specify cell boundaries for a closed topology. Your netCDF file must be following at least some parts of the CF convention; your data would
not show up as a sphere if it were not. The CF convention provides a way of defining cells that are not constrained by a regular grid topology. It is done through a "bounds" attribute on the dimension descriptor variables. You need either 1D or 2D bounds.
They are described in this section of the CF convention documentation: <a href="http://cf-pcmdi.llnl.gov/documents/cf-conventions/1.5/cf-conventions.html#cell-boundaries" target="_blank">http://cf-pcmdi.llnl.gov/documents/cf-conventions/1.5/cf-conventions.html#cell-boundaries</a>.</div>
<div><br>
</div>
</span></span></font></font></div>
</div>
</div>
</div>
</blockquote>
<div><br>
Agreed. The hack we have in VisIt loader (replace the last grid value with the 1st grid value to create a "closed topology" ) is not "generalizable" and will blow up in my face if I hand it to the user.<br>
<br>
<br>
thanks<br>
-simon<br>
<br>
<br>
<br>
</div>
<blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
<div style="word-wrap: break-word; color: rgb(0, 0, 0); font-size: 14px; font-family: Calibri,sans-serif;">
<div>
<div>
<div><font size="2"><font face="Consolas,Courier New,Courier"><span style="font-size: 10pt;"><span style="font-size: 14px; font-family: Calibri,sans-serif;">
<div></div>
<div>The VTK test data has examples of both 1D bounds (tos_O1_2001-2002.nc) and 2D bounds (sampleCurveGrid4.nc). You can get the VTK test data from git (<a href="http://vtk.org/VTKData.git" target="_blank">http://vtk.org/VTKData.git</a>), or download them
directly from the gitourious server:</div>
<div><br>
</div>
<blockquote style="border: medium none; margin: 0pt 0pt 0pt 40px; padding: 0px;">
<div><a href="http://vtk.org/gitweb?p=VTKData.git;a=blob;f=Data/tos_O1_2001-2002.nc;h=30aa4a9b5e08b9bdf64540f2b144d83b279cca6c;hb=HEAD" target="_blank">http://vtk.org/gitweb?p=VTKData.git;a=blob;f=Data/tos_O1_2001-2002.nc;h=30aa4a9b5e08b9bdf64540f2b144d83b279cca6c;hb=HEAD</a></div>
<div><br>
</div>
<div><a href="http://vtk.org/gitweb?p=VTKData.git;a=blob;f=Data/sampleCurveGrid4.nc;h=0ab89c27a25f92c047b58dca8b3057ca8d4df017;hb=HEAD" target="_blank">http://vtk.org/gitweb?p=VTKData.git;a=blob;f=Data/sampleCurveGrid4.nc;h=0ab89c27a25f92c047b58dca8b3057ca8d4df017;hb=HEAD</a></div>
</blockquote>
<div><br>
</div>
<div>-Ken</div>
</span></span></font></font></div>
<div><font size="2"><font face="Consolas,Courier New,Courier"><span style="font-size: 10pt;"><br>
**** Kenneth Moreland<br>
*** Sandia National Laboratories<br>
*********** <br>
*** *** *** email: <font color="#0000ff"><u><a href="http://kmorel@sandia.gov" target="_blank">kmorel@sandia.gov</a><br>
</u></font>** *** ** phone: <a href="tel:%28505%29%20844-8919" target="_blank">
(505) 844-8919</a><br>
*** web: <font color="#0000ff"><u><a href="http://www.cs.unm.edu/%7Ekmorel" target="_blank">http://www.cs.unm.edu/~kmorel</a></u></font><br>
</span></font></font></div>
</div>
</div>
<div><br>
</div>
<span>
<div style="border-style: solid none none; border-color: rgb(181, 196, 223) -moz-use-text-color -moz-use-text-color; border-width: 1pt medium medium; padding: 3pt 0in 0in; font-family: Calibri; font-size: 11pt; text-align: left; color: black;">
<span style="font-weight: bold;">From: </span>Simon Su <<a href="mailto:newsgroup4ssu@gmail.com" target="_blank">newsgroup4ssu@gmail.com</a>><br>
<span style="font-weight: bold;">Date: </span>Fri, 18 Mar 2011 16:43:42 -0400<br>
<span style="font-weight: bold;">To: </span>Andy Bauer <<a href="mailto:andy.bauer@kitware.com" target="_blank">andy.bauer@kitware.com</a>><br>
<span style="font-weight: bold;">Cc: </span><<a href="mailto:paraview@paraview.org" target="_blank">paraview@paraview.org</a>><br>
<span style="font-weight: bold;">Subject: </span>Re: [Paraview] loading nc formatted data<br>
</div>
<div>
<div></div>
<div>
<div><br>
</div>
Hi Andy,<br>
<br>
python trace gave me<br>
<br>
<span dir="ltr"></span>
<table style="margin: 4px;">
<tbody>
<tr>
<td style="border: medium none;">
<p style="margin: 0px; text-indent: 0px;">zos_Omon_GFDLESM2M_historical_r1i1p1_186101188012_nc = NetCDFReader( FileName=['/work/sms/data/cmor-20110128/mon/ocean/zos/r1i1p1/zos_Omon_GFDL-ESM2M_historical_r1i1p1_186101-188012.nc'] )</p>
</td>
</tr>
</tbody>
</table>
<br>
and there are tons of netcdf reader in ParaView and it is not in the plugin directory<br>
<br>
sms:/local/home/build/paraview/ParaView-3.10.0/Plugins> pwd<br>
/local/home/build/paraview/ParaView-3.10.0/Plugins<br>
sms:/local/home/build/paraview/ParaView-3.10.0/Plugins> ll<br>
total 84<br>
drwxr-xr-x 3 sms t 4096 Mar 10 12:37 AdiosReader/<br>
drwxr-xr-x 2 sms t 4096 Mar 10 12:37 AnalyzeNIfTIReaderWriter/<br>
-rw-r--r-- 1 sms t 3261 Mar 9 13:31 CMakeLists.txt<br>
drwxr-xr-x 3 sms t 4096 Mar 10 12:37 CoProcessingScriptGenerator/<br>
drwxr-xr-x 2 sms t 4096 Mar 10 12:37 CosmoFilters/<br>
drwxr-xr-x 4 sms t 4096 Mar 10 12:37 EyeDomeLighting/<br>
drwxr-xr-x 2 sms t 4096 Mar 10 12:37 ForceTime/<br>
drwxr-xr-x 3 sms t 4096 Mar 10 12:37 H5PartReader/<br>
drwxr-xr-x 4 sms t 4096 Mar 10 12:37 Manta/<br>
drwxr-xr-x 2 sms t 4096 Mar 10 12:37 Moments/<br>
drwxr-xr-x 2 sms t 4096 Mar 10 12:37 NetDMFReader/<br>
drwxr-xr-x 6 sms t 4096 Mar 10 12:37 PointSprite/<br>
drwxr-xr-x 4 sms t 4096 Mar 10 12:37 PrismPlugins/<br>
drwxr-xr-x 3 sms t 4096 Mar 10 12:37 pvblot/<br>
drwxr-xr-x 3 sms t 4096 Mar 10 12:37 SierraPlotTools/<br>
drwxr-xr-x 3 sms t 4096 Mar 10 12:37 SLACTools/<br>
drwxr-xr-x 4 sms t 4096 Mar 10 12:37 StreamingView/<br>
drwxr-xr-x 2 sms t 4096 Mar 10 12:37 SurfaceLIC/<br>
drwxr-xr-x 2 sms t 4096 Mar 10 12:37 Vapor/<br>
drwxr-xr-x 2 sms t 4096 Mar 10 12:37 VRPN/<br>
drwxr-xr-x 2 sms t 4096 Mar 9 13:31 VRUI/<br>
sms:/local/home/build/paraview/ParaView-3.10.0/Plugins> <br>
<br>
<br>
Can you help describe how Netcdf files plugins are done in ParaView. Do they have a super class of Netcdf that they all derive from to write the different flavors of netcdf readers? If so, where can the code be found?<br>
<br>
thanks<br>
-simon<br>
<br>
<br>
<br>
<div class="gmail_quote">On Fri, Mar 18, 2011 at 10:30 AM, Andy Bauer <span dir="ltr">
<<a href="mailto:andy.bauer@kitware.com" target="_blank">andy.bauer@kitware.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
Hi Simon,<br>
<br>
Replies below...<br>
<br>
<div class="gmail_quote">
<div>On Thu, Mar 17, 2011 at 12:41 PM, Simon Su <span dir="ltr"><<a href="mailto:newsgroup4ssu@gmail.com" target="_blank">newsgroup4ssu@gmail.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
Hi All,<br>
<br>
<a href="ftp://ftp.gfdl.noaa.gov/pub/sms/4ParaView/1.png" target="_blank">ftp://ftp.gfdl.noaa.gov/pub/sms/4ParaView/1.png</a><br>
<a href="ftp://ftp.gfdl.noaa.gov/pub/sms/4ParaView/2.png" target="_blank">ftp://ftp.gfdl.noaa.gov/pub/sms/4ParaView/2.png</a><br>
<a href="ftp://ftp.gfdl.noaa.gov/pub/sms/4ParaView/3.png" target="_blank">ftp://ftp.gfdl.noaa.gov/pub/sms/4ParaView/3.png</a><br>
<br>
the above are screen shot from older version of *.nc files that I have that I loaded up with Paraview 3.10.0 64-bit which I compiled myself. As you can see, the grid is correctly loaded. But in the data, there is a crack. Is there a filter that can fix this
in ParaView? :)<br>
</blockquote>
</div>
<div><br>
I'm not aware of any filter that will fix this automatically. Can you describe the grid a bit more? It kind of looks like a multiblock of structured grids.<br>
</div>
<div>
<blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
<br>
<a href="ftp://ftp.gfdl.noaa.gov/pub/sms/4ParaView/4.png" target="_blank">ftp://ftp.gfdl.noaa.gov/pub/sms/4ParaView/4.png</a> is the latest nc file that I have of similar simulation preprocessed output. When I loaded it up, it is clearly doing making assumption
on the grid that is not correct and hence, the double looking grid. <br>
<br>
The questions now are:<br>
<br>
1. ParaView has lots of *.nc file loader. How do I know which loader is ParaView using to load the data? If I pick a type for the Files of type option in the open File window, will that gurantees that ParaView will be using that particular file loader?<br>
</blockquote>
</div>
<div><br>
If there is an ambiguity for which file loader to use (i.e. multiple readers assume the same extension), then the GUI should pop up a dialog for you to specify which one to use. You can use the python trace to figure out exactly what reader is being used to
load the file.<br>
<br>
</div>
<div>
<blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
<br>
2. If I know which loader is used, I would like to see if I can modify the existing loader to create a new type of *.nc file loader to fix the grid of my data. Where is the code in the source tree of ParaView is the loader plugin placed?
<br>
</blockquote>
</div>
<div>Based on the name of the name of the reader from the python script, you can look up the actual class name in the ParaView/Servers/ServerManager/Resources/readers.xml file.
<br>
</div>
<blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
<div><br>
or if there is an easier solution to fix my grid problem that doesn't involve developing a new data loader plugin that would be better.... :) please let me know...<br>
<br>
thanks<br>
<font color="#888888">-simon<br>
<br>
</font><br>
</div>
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