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<div>Thanks, Ken. I think I have the problem figured out. If you look closely at the time variable (which gives the time values), you will see that there are several invalid 0 values appended to the end. The netCDF reader is being stupid and add these time
values, which gives an invalid time bounds. I think ParaView is seeing the invalid time bounds (begin time greater than end time) and determining that there should not be time. If you strip off the 0 values, the time loads fine.</div>
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<div>I will make a bug report on this. Is it OK to attach the example file you gave me to it, or would you rather it not be open?</div>
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<div>-Ken</div>
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<span style="font-weight:bold">From: </span>Ken Sheldon <<a href="mailto:KSheldon@slb.com">KSheldon@slb.com</a>><br>
<span style="font-weight:bold">Date: </span>Tuesday, April 26, 2016 at 3:25 PM<br>
<span style="font-weight:bold">To: </span>Kenneth Moreland <<a href="mailto:kmorel@sandia.gov">kmorel@sandia.gov</a>><br>
<span style="font-weight:bold">Subject: </span>[EXTERNAL] RE: [Paraview] Time Variables in CF Conventions<br>
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<p class="MsoNormal"><span style="color:#1F497D">Hi, Ken.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">I will email you a ZIPX file , size approx. 800Kbytes.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">----Ken<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b>From:</b> Moreland, Kenneth [<a href="mailto:kmorel@sandia.gov">mailto:kmorel@sandia.gov</a>]
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<b>Sent:</b> Tuesday, April 26, 2016 5:17 PM<br>
<b>To:</b> Ken Sheldon <<a href="mailto:KSheldon@slb.com">KSheldon@slb.com</a>>; <a href="mailto:paraview@paraview.org">
paraview@paraview.org</a><br>
<b>Subject:</b> Re: [Paraview] Time Variables in CF Conventions<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal"><span style="font-size:10.5pt;color:black">That is very odd. I just had a look at the code for the reader, and both the units and the axis properties should have caused the reader to treat the dimension as time.<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:10.5pt;color:black"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span style="font-size:10.5pt;color:black">Is there a way I can get a copy of the netCDF file? I tried going to the web site you posted at the beginning of this thread, but I couldn't figure out how to download a netCDF file.<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:10.5pt;color:black"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span style="font-size:10.5pt;color:black"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b><span style="color:black">From: </span></b><span style="color:black">Ken Sheldon <<a href="mailto:KSheldon@slb.com">KSheldon@slb.com</a>><br>
<b>Date: </b>Tuesday, April 26, 2016 at 12:36 PM<br>
<b>To: </b>Kenneth Moreland <<a href="mailto:kmorel@sandia.gov">kmorel@sandia.gov</a>>, "<a href="mailto:paraview@paraview.org">paraview@paraview.org</a>" <<a href="mailto:paraview@paraview.org">paraview@paraview.org</a>><br>
<b>Subject: </b>[EXTERNAL] RE: [Paraview] Time Variables in CF Conventions</span><span style="font-size:12.0pt;color:black"><o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:10.5pt;color:black"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span style="color:#1F497D">It looks like the units in the CLASS data are, “hour since 1997-01-01 00:00:00”</span><span style="color:black"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">In the test data, (which works fine, I confirm) , the units are, “days since 2001-1-1”</span><span style="color:black"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"> </span><span style="color:black"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">I would expect the attribute axis = ”T” to indicate this is a time dimension. Time as a UOM might be used in any property, not just dimensions.</span><span style="color:black"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">What do you think?</span><span style="color:black"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"> </span><span style="color:black"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"> </span><span style="color:black"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">TIME1 (-1051845271)</span><span style="color:black"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"> double, 182</span><span style="color:black"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"> Number of attributes = 5</span><span style="color:black"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"> units = hour since 1997-01-01 00:00:00
</span><span style="color:black"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"> time_origin = 1-JAN-1997 00:00:00
</span><span style="color:black"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"> axis = T </span><span style="color:black"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"> standard_name = time </span>
<span style="color:black"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"> bounds = TIME1_bnds</span><span style="color:black"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"> </span><span style="color:black"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"> </span><span style="color:black"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"> </span><span style="color:black"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">time (-781830246)</span><span style="color:black"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"> double, 24</span><span style="color:black"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"> Number of attributes = 7</span><span style="color:black"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"> standard_name = time </span>
<span style="color:black"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"> long_name = time </span>
<span style="color:black"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"> units = days since 2001-1-1
</span><span style="color:black"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"> axis = T </span><span style="color:black"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"> calendar = 360_day </span>
<span style="color:black"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"> bounds = time_bnds </span>
<span style="color:black"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"> original_units = seconds since 2001-1-1</span><span style="color:black"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"> </span><span style="color:black"><o:p></o:p></span></p>
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<p class="MsoNormal"><b><span style="color:black">From:</span></b><span style="color:black"> Moreland, Kenneth [<a href="mailto:kmorel@sandia.gov">mailto:kmorel@sandia.gov</a>]
<br>
<b>Sent:</b> Tuesday, April 26, 2016 1:14 PM<br>
<b>To:</b> Ken Sheldon <<a href="mailto:KSheldon@slb.com">KSheldon@slb.com</a>>; <a href="mailto:paraview@paraview.org">
paraview@paraview.org</a><br>
<b>Subject:</b> Re: [Paraview] Time Variables in CF Conventions<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="color:black"> <o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:10.5pt;color:black">The netCDF CF reader in ParaView does support time dimensions. For example, the netCDF file tos_O1_2001-2002.nc used for VTK testing (<a href="https://urldefense.proofpoint.com/v2/url?u=https-3A__midas3.kitware.com_midas_item_206312&d=CwMGaQ&c=uGuXJ43KPkPWEl2imVFDmZQlhQUET7pVRA2PDIOxgqw&r=PPcXhptMPNzBCwHx-o1zqg&m=A7bpyohhfVnNQoUi0GE2BJS2jE2OkxogntGvLqTmVGM&s=HGoAZZDUus7tmDI-abU30H7Ij8Qg_EeQwanbaawq2-w&e=">https://midas3.kitware.com/midas/item/206312</a>)
has a time dimension and it loads just fine.</span><span style="color:black"><o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:10.5pt;color:black"> </span><span style="color:black"><o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:10.5pt;color:black">As I recall, the CF convention defines the time dimension using a units property on the variable that specifies some unit of time. One problem that has occurred in the past is that sometimes the
time unit is something that the reader does not recognize as time. What is the time units used in your data set?</span><span style="color:black"><o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:10.5pt;color:black"> </span><span style="color:black"><o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:10.5pt;color:black">-Ken</span><span style="color:black"><o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:10.5pt;color:black"> </span><span style="color:black"><o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:10.5pt;color:black"> </span><span style="color:black"><o:p></o:p></span></p>
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<p class="MsoNormal"><b><span style="color:black">From: </span></b><span style="color:black">ParaView <<a href="mailto:paraview-bounces@paraview.org">paraview-bounces@paraview.org</a>> on behalf of Ken Sheldon <<a href="mailto:KSheldon@slb.com">KSheldon@slb.com</a>><br>
<b>Date: </b>Saturday, April 23, 2016 at 9:51 AM<br>
<b>To: </b>"<a href="mailto:paraview@paraview.org">paraview@paraview.org</a>" <<a href="mailto:paraview@paraview.org">paraview@paraview.org</a>><br>
<b>Subject: </b>[EXTERNAL] [Paraview] Time Variables in CF Conventions<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:10.5pt;color:black"> </span><span style="color:black"><o:p></o:p></span></p>
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<p class="MsoNormal"><span style="color:black">I am trying to read a CF Conventions NetCDF file (Sea Surface Temperature from NOAA).<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:black">The CF reader in ParaView recognizes the axes and the data correctly. However, it does not seem to recognize the TIME dimension.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:black"> <o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:black">Is anyone here reading CF (Climate Forecasting) files successfully?<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:black"> <o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:black"> <o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:black">Reference: <a href="https://urldefense.proofpoint.com/v2/url?u=http-3A__www.class.ngdc.noaa.gov_saa_products_search-3Fdatatype-5Ffamily-3DSST14NA&d=CwMGaQ&c=uGuXJ43KPkPWEl2imVFDmZQlhQUET7pVRA2PDIOxgqw&r=PPcXhptMPNzBCwHx-o1zqg&m=A7bpyohhfVnNQoUi0GE2BJS2jE2OkxogntGvLqTmVGM&s=SRGkdReFFtTB-YX8wNBb3I5f3OaCiZ27AIVx3iqa78k&e=">
http://www.class.ngdc.noaa.gov/saa/products/search?datatype_family=SST14NA</a> <o:p>
</o:p></span></p>
<p class="MsoNormal"><span style="color:black"> <o:p></o:p></span></p>
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