Ken, Your comments helped me a lot to see the issue and I appreciate you raising a bug on this.
Thanks again for your prompt replies. Best, —manoch > On Jan 18, 2018, at 6:32 AM, Moreland, Kenneth <kmo...@sandia.gov> wrote: > > Manochehr, > > ParaView always renders in a Cartesian space. So if you want the > lat/lon/depth values to look like a sphere, the coordinates have to be > converted and you will loose the original values. I can see the point of your > use case. It just never came up before. It seems reasonable to be able to > save the original lat/lon values in a field, so I raised a bug for it. > > https://gitlab.kitware.com/paraview/paraview/issues/17943 > <https://gitlab.kitware.com/paraview/paraview/issues/17943> > > As far as getting the coordinates in a script, it is possible but not > recommended. If you need to access field or coordinate values directly, it is > usually best to do so in a programmable filter. > > -Ken > > Sent from my iPad > > On Jan 18, 2018, at 7:06 AM, Manochehr Bahavar <man...@iris.washington.edu > <mailto:man...@iris.washington.edu>> wrote: > >> Hi Aashish, >> >> Thank you for your reply. That will be great if it gets looked into:) Going >> back and forth between coordinate systems may be a little confusing, but I >> will give it a try and see how it works out. >> >> >> Could you also point me in the right direction for getting the latitude, >> longitude and depth arrays? As I mentioned in my reply to Ken (below), using >> Python, I go as far as getting the extents and bounds but cannot get the >> actual values. >> >> Thank you again for your quick reply and useful suggestions. >> >> Best, >> >> —manoch >> >> >> >>> On Jan 17, 2018, at 10:29 PM, Aashish Chaudhary >>> <aashish.chaudh...@kitware.com <mailto:aashish.chaudh...@kitware.com>> >>> wrote: >>> >>> Hi Manoch, >>> >>> I think what you want is not possible right now but let us get back to you >>> on it as something we might want to look into before we can say it for >>> sure. One workaround would be you load the data (uncheck the sphere >>> coordinate system), apply the filter, and then write the data back as >>> NetCDF. It is not ideal by any means. You can also look into >>> vtkSphericalTransform (if you want to convert data back to spherical >>> coordinate system) but you will not get the exact shape of earth which is a >>> ellipsoid (which I am not sure if you would be interested in anyways). >>> >>> Hope this helps. >>> >>> On Wed, Jan 17, 2018 at 7:12 PM Manochehr Bahavar >>> <man...@iris.washington.edu <mailto:man...@iris.washington.edu>> wrote: >>> Ken, >>> >>> Thanks for your reply. The problem with that approach is that all the >>> features I am interested in make sense if they are plotted on a sphere >>> (they approximate the Earth surface). So, there is no builtin solution for >>> that? >>> >>> One more question: How can I access the actual latitude, longitude and >>> depth parameter values using Python. I can see their extent and bounds, but >>> I can not see how I can access the individual values: >>> >>> temp.GetBounds() >>> (0.0, 359.0, -89.0, 89.0, -2750.0, 50.0) >>> temp.GetDimensions() >>> (360, 179, 57) >>> temp.GetExtent() >>> (0, 359, 0, 178, 0, 56) >>> temp.GetCenter() >>> (179.5, 0.0, -1350.0) >>> temp.GetNumberOfPoints() >>> 3673080L >>> >>> Really appreciate your help >>> >>> —manoch >>> >>> >>>> On Jan 17, 2018, at 3:57 PM, Moreland, Kenneth <kmo...@sandia.gov >>>> <mailto:kmo...@sandia.gov>> wrote: >>>> >>>> Manochehr, >>>> >>>> If you uncheck the “Spherical Coordiantes” option, then the longitude, >>>> latitude, and depth values will be preserved as x, y, and z coordinates. >>>> (Instead of translated to a sphere, the data will appear in a rectangle.) >>>> >>>> -Ken >>>> >>>> >>>> On 1/17/18, 4:34 PM, "ParaView on behalf of Manochehr Bahavar" >>>> <paraview-boun...@paraview.org <mailto:paraview-boun...@paraview.org> on >>>> behalf of man...@iris.washington.edu <mailto:man...@iris.washington.edu>> >>>> wrote: >>>> >>>> Hello, >>>> >>>> I am trying to see if I can visualize my netCDF Earth models >>>> (longitude, latitude,depth) using ParaView. I have been able to load the >>>> models, with the "Spherical Coordinates" option selected. However it >>>> appears that I now lose my coordinates and depth values and as a result to >>>> extract a subset, I have to use the depth index (not the actual depth >>>> value). Is there a way to preserve the latitude, longitude and depth >>>> values and work with ParaView using the actual values (not their index) >>>> directly? >>>> >>>> Thank you, >>>> >>>> —manoch >>>> _______________________________________________ >>>> Powered by www.kitware.com <http://www.kitware.com/> >>>> >>>> Visit other Kitware open-source projects at >>>> http://www.kitware.com/opensource/opensource.html >>>> <http://www.kitware.com/opensource/opensource.html> >>>> >>>> Please keep messages on-topic and check the ParaView Wiki at: >>>> http://paraview.org/Wiki/ParaView <http://paraview.org/Wiki/ParaView> >>>> >>>> Search the list archives at: http://markmail.org/search/?q=ParaView >>>> <http://markmail.org/search/?q=ParaView> >>>> >>>> Follow this link to subscribe/unsubscribe: >>>> https://paraview.org/mailman/listinfo/paraview >>>> <https://paraview.org/mailman/listinfo/paraview> >>>> >>>> >>> >>> _______________________________________________ >>> Powered by www.kitware.com <http://www.kitware.com/> >>> >>> Visit other Kitware open-source projects at >>> http://www.kitware.com/opensource/opensource.html >>> <http://www.kitware.com/opensource/opensource.html> >>> >>> Please keep messages on-topic and check the ParaView Wiki at: >>> http://paraview.org/Wiki/ParaView <http://paraview.org/Wiki/ParaView> >>> >>> Search the list archives at: http://markmail.org/search/?q=ParaView >>> <http://markmail.org/search/?q=ParaView> >>> >>> Follow this link to subscribe/unsubscribe: >>> https://paraview.org/mailman/listinfo/paraview >>> <https://paraview.org/mailman/listinfo/paraview> >>
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