[Paraview] Plot over time at an xyz location

[Scott, W Alan]

Is it possible to plot some variable over time at an xyz location?  For 
instance, if I have water flowing down a pipe, and want to plot the pressure as 
the water velocity increases one unit (i.e., cm) in from the edge of the pipe, 
how do I do it?

Thanks,

Alan

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Re: [Paraview] [EXTERNAL] Re: Tesselate filter

[Utkarsh Ayachit]

A fix is being tested here:
https://gitlab.kitware.com/vtk/vtk/merge_requests/1667

On Fri, Jul 8, 2016 at 3:15 PM, Scott, W Alan  wrote:

> That’s what I saw also.
>
>
>
> Here is a bug report.  http://www.paraview.org/Bug/view.php?id=16777  I
> will add it to trello.
>
>
>
>
>
>
>
>
>
> *From:* Utkarsh Ayachit [mailto:utkarsh.ayac...@kitware.com]
> *Sent:* Friday, July 08, 2016 1:08 PM
> *To:* Scott, W Alan 
> *Cc:* paraview@paraview.org
> *Subject:* [EXTERNAL] Re: [Paraview] Tesselate filter
>
>
>
> It should. As I am looking at the code, I notice that there may be a bug
> in the code that passes the cell data information which is causing the
> arrays to be lost.
>
>
>
> On Thu, Jul 7, 2016 at 9:30 PM, Scott, W Alan  wrote:
>
> Shouldn’t the tessellate filter pass on cell data?  Currently point data
> is created and passed on, but cell data is stripped.
>
>
>
> Thanks,
>
>
>
> Alan
>
>
>
>
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Re: [Paraview] numpy_interface/dataset_adapter append method fails on string datatypes ?

[Utkarsh Ayachit]

Dean,

Current numpy support in VTK doesn't include string arrays, You can
overcome that as follows:

colNames = [ 'simulation', 'v0 (m/s)', 'k (%)' ]
col0 = [ 'm01-sim001', 'm01-sim002', 'm02-sim001' ]
...
strArray = vtk.vtkStringArray()
strArray.SetName(colNames[0])
strArray.SetNumberOfTuples(len(col0))
for i in range(len(col0)):
strArray.SetValue(i, col0[i])
output.RowData.AddArray(strArray)




On Fri, Jul 1, 2016 at 9:46 PM, Dean Neumann  wrote:

> I am trying to write a python programmable filter which calculates
> statistics across multiple input datasets and outputs those as a vtkTable.
>
> All is ok for numeric values.   But I can't seem to get any approach to
> work for outputting a vtkTable column of string values.
> Using numpy_interface/dataset_adapter.py is the cleanest approach I've yet
> tried for appending  columns of numeric values to an output dataset of type
> vtkTable, but it raises the following error on string-valued arrays:
>
>> Traceback (most recent call last):
>
> File "", line 29, in 
>
> File "", line 14, in RequestData
>
> File "C:\Program
>> Files\ParaView\lib\paraview-5.0\site-packages\vtk\numpy_interface\dataset_adapter.py",
>> line 648, in append
>
> narray = narray * numpy.ones(arrLength)
>
> TypeError: only integer arrays with one element can be converted to an
>> index
>
>
> Can someone please post an example python programmable filter that outputs
> a vtkTable which includes a column of string valued data?   I have attached
> a minimal script which reproduces the problem.
>
>
> Thanks
>
> Dean Neumann
>
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Re: [Paraview] Parallel Rendering - Only one part of dataset shown

[Utkarsh Ayachit]

That's weird. If you create a Sphere source instead, does that work?

On Sat, Jul 2, 2016 at 12:06 PM, Felix Winterhalter 
wrote:

> So I've been trying to get parallel rendering to work for my Paraview.
>
> I built the server myself with MPI support enabled. I then started the
> parallel server using mpirun which appears to run fine.
>
> After connecting to the server and loading my VTK Dataset I however only
> see a part of the dataset rendered. It appears that this is the part
> that is loaded in the master process and nothing else. I tried running
> with more or less processes in parallel which then increased or
> decreased the size of the shown dataset.
>
> So I was wondering how do I actually display the rest? The way it is
> right now its pretty useless to me since I can't see most of my data.
>
> The data I have is an unstructured grid.
>
> Any help would be appreciated.
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Re: [Paraview] Tesselate filter

[Utkarsh Ayachit]

It should. As I am looking at the code, I notice that there may be a bug in
the code that passes the cell data information which is causing the arrays
to be lost.

On Thu, Jul 7, 2016 at 9:30 PM, Scott, W Alan  wrote:

> Shouldn’t the tessellate filter pass on cell data?  Currently point data
> is created and passed on, but cell data is stripped.
>
>
>
> Thanks,
>
>
>
> Alan
>
>
>
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[Paraview] Fwd: ADIOS plugin Paraview 5.1

[Benjamín Hernández]

Hello,

I've compiled Paraview 5.1 with mpi support and ADIOS plugin to read some
ADIOS
datafiles.

I run paraview in client/server mode with 16 mpi processes in one node; when
opening a test file I got the next error (16 times, one per each process):

Connection URL: cs://:1
Accepting connection(s): :1
Client connected.
'rpc_read_config()': failed with -2.
'dc_boot()': failed with -2.
'dc_alloc()': failed with -2.
'rpc_read_config()': failed with -2.
'dc_boot()': failed with -2.
'dc_alloc()': failed with -2.
'dcg_alloc()': failed with -12.
common_dspaces_init(): failed to initialize.
ERROR: Failed to connect with DATASPACES

So it seems I need to run the Dataspace server by hand, right ?

Why the plugin uses Daspaces transport method instead of the more
traditional mpi ?

I don't recall paraview cmake configuration allowed to
specify any transport method for ADIOS.


Thanks,

Benjamin






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Re: [Paraview] problems using pvbatch in frozen build

[Utkarsh Ayachit]

I got over such problems by delaying importing of those modules until
needed. They are not needed for most common use-cases.

See:
https://gitlab.kitware.com/paraview/paraview/commit/3af48fffd924bf5ffd11f576a261ef4eb3ff5897

On Tue, Jul 5, 2016 at 2:35 PM, Burlen Loring  wrote:

> Hi All,
>
> I'm encountering some issues when trying to use pvbatch from a frozen
> build(PARAVIEW_FREEZE_PYTHON=ON). Seems that certain key python modules are
> missing.ie math. However, I can use Python shell feature in the GUI from
> the same build. Do we have any idea about what may be wrong with pvbatch?
>
>
> here is output from a simple test:
>
> nid00048:~$pvbatch pvbatch-test.py
> started
> Traceback (most recent call last):
>   File "pvbatch-test.py", line 3, in 
> from paraview.simple import *
>   File
> "/usr/common/graphics/ParaView/builds/PV-4.4.0/lib/site-packages/paraview/simple.py",
> line 40, in 
> import lookuptable
>   File
> "/usr/common/graphics/ParaView/builds/PV-4.4.0/lib/site-packages/paraview/lookuptable.py",
> line 21, in 
> from math import sqrt
> ImportError: No module named math
>
> I tried this as well:
>
> nid00048:~$pvpython
> Python 2.7.9 (default, Jan  8 2015, 22:29:31)
> [GCC 4.9.1 20140716 (Cray Inc.)] on linux2
> Traceback (most recent call last):
>   File "/etc/pythonstart", line 7, in 
> import readline
> ImportError: Excluded frozen object named readline
> >>> import math
> Traceback (most recent call last):
>   File "", line 1, in 
> ImportError: No module named math
> >>>
>
> Thanks
> Burlen
>
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Re: [Paraview] Suggestion for STL import

[Eugene de Villiers]

Utkarsh,

Unfortunately, the STL that produced the issue is confidential and also quite 
large, so I am unsure how to go about producing something equivalent. Let me 
know what you find after looking at the reader and I will try to find something 
appropriate. To be honest, the reasoning is speculative, but it is clear that 
the STL reader has some drawbacks. At the very least we would be happy to test 
any alterations you might come up with on the original input.

Not merging the points is a reasonable work-around, but you will lose some 
utility (feature detection). I think it should be relatively easy to create or 
port an existing algorithm that is a bit more efficient (of course these kind 
of assumptions tend to be wrong, but anyway!).

Eugene

From: Utkarsh Ayachit [mailto:utkarsh.ayac...@kitware.com]
Sent: 05 July 2016 17:05
To: Eugene de Villiers 
Cc: paraview@paraview.org
Subject: Re: [Paraview] Suggestion for STL import

Eugene,

I am pretty sure the community will be interested in this! While I'll need to 
look into the reader to understand, to get things going, do you have a sample 
dataset to demonstrate the issue?

Utkarsh

On Tue, Jul 5, 2016 at 10:28 AM, Eugene de Villiers 
> wrote:
Hi,

When importing STL format geometry or similar, where connectivity information 
is not implicit in the data structure, it appears that the connectivity is 
reconstructed via an  octree search. This is very inefficient when surfaces 
with large differences in edge length are imported – we have had a recent case 
where an STL took 45mins to load. If the same input geometry is converted to 
OBJ format via an external tool, the load time reduces to minutes.

A generally more efficient method is to calculate the distance of each point 
from a location outside the point cloud bounding box and then to bubble-sort 
the resulting list. Unless you are dealing with a pathological case your local 
search neighbourhood of identical distance points will be small and the 
algorithm very fast. More complex, multi-origin algorithms are also possible to 
counter pathological instances.

I can provide more details and sample code if you are interested.

Best regards,

Eugene de Villiers
Managing Director
e.devilli...@engys.com
Mob: +44 (0) 77 89748490
Tel: +44 (0)20 32393041 (ext. 102)
Fax: +44 (0)20 33573123
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Re: [Paraview] 3D Tv

[Christophe Bourcier]

Hi,

We have used Paraview on some 3D HD TV connected via HDMI to a laptop.
You have to set the stereo in Paraview to SplitViewPortHorizontal. It
is not as nice as CrystalEyes since you loose half of the horizontal
resolution.

To display in UHD on the TV from your link you will need a graphic
card allowing UHD, like an Nvidia Quadro 5000.

Christophe

2016-07-07 9:26 GMT+02:00  :
> Hi,
>
> Has anyone managed to get Paraview working nicely on a 3D Tv? We are looking 
> at purchasing one of these http://www.lg.com/uk/tvs/lg-65UF860V but we want 
> to be sure that it’s going to be possible to configure with Paraview before 
> we purchase it.
>
> Thanks in advance,
> Owen.
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Re: [Paraview] VTK warning during volume rendering of vtkStructuredGrid on Windows with Nvidia graphics card.

[Aashish Chaudhary]

Hi Weiguang,

Have you tried recent release of paraview / vtk? This should have been
fixed in the recent commits.

Thanks


On Fri, Jul 8, 2016 at 10:04 AM, Weiguang guan 
wrote:

> Is there a solution to fix the problem? Thanks.
>
> Weiguang
>
>
> On 04/07/2016 3:51 PM, Weiguang guan wrote:
>
> I run into the same problem on linux.
>
> Warning: In
> /home/kitware/dashboards/buildbot/paraview-debian6dash-linux-shared-release_opengl2_qt4_superbuild/source-paraview/VTK/Rendering/VolumeOpenGL2/vtkOpenGLProjectedTetrahedraMapper.cxx,
> line 251
> vtkOpenGLProjectedTetrahedraMapper (0x630b310): Missing FBO support. The
> algorithm may produce visual artifacts.
>
> I'm running Paraview 5.0.0.
>
> Weiguang
>
> On 03/03/2016 9:42 AM, Aashish Chaudhary wrote:
>
> I have the same problem. Though in my case it is a small unstructuredgrid
> vtu file. The OS is Ubuntu 14.04. ParaView-5.0.0-Qt4-OpenGL2-MPI-Linux-64bit
> prebuilt binaries. The Graphics card is Nvidia Quadro K620 with OpenGL
> version 3.02 Nvidia 352.63. The Nvidia settings show the following etensions
> amongst others GL_ARB_frame_buffer_object.
>
> Also, it does show artifacts. In particular for a vector allocated to a
> standard hexahedron cell, the colors are slightly different within the cell.
> You can see triangular segments [possibly tetrahedron?]
>
> It seems to me that you are running into a different issue as atleast
> you are seeing
> something but it does look correct to you. Is that it?
>
> Thanks
>
>
>
> Regard
> Paul.
>
>
>
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-- 



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*| http://www.kitware.com/company/team/chaudhary.html
*
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Re: [Paraview] VTK warning during volume rendering of vtkStructuredGrid on Windows with Nvidia graphics card.

[Weiguang guan]

Is there a solution to fix the problem? Thanks.

Weiguang

On 04/07/2016 3:51 PM, Weiguang guan wrote:

I run into the same problem on linux.

Warning: In 
/home/kitware/dashboards/buildbot/paraview-debian6dash-linux-shared-release_opengl2_qt4_superbuild/source-paraview/VTK/Rendering/VolumeOpenGL2/vtkOpenGLProjectedTetrahedraMapper.cxx, 
line 251
vtkOpenGLProjectedTetrahedraMapper (0x630b310): Missing FBO support. 
The algorithm may produce visual artifacts.


I'm running Paraview 5.0.0.

Weiguang

On 03/03/2016 9:42 AM, Aashish Chaudhary wrote:

I have the same problem. Though in my case it is a small unstructuredgrid
vtu file. The OS is Ubuntu 14.04. ParaView-5.0.0-Qt4-OpenGL2-MPI-Linux-64bit
prebuilt binaries. The Graphics card is Nvidia Quadro K620 with OpenGL
version 3.02 Nvidia 352.63. The Nvidia settings show the following etensions
amongst others GL_ARB_frame_buffer_object.
Also, it does show artifacts. In particular for a vector allocated to a
standard hexahedron cell, the colors are slightly different within the cell.
You can see triangular segments [possibly tetrahedron?]

It seems to me that you are running into a different issue as atleast
you are seeing
something but it does look correct to you. Is that it?

Thanks



Regard
Paul.



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Re: [Paraview] Ensight 6 imported case error

[Utkarsh Ayachit]

Juan,

Can you share a sample dataset to reproduce this issue?

Thanks
Utkarsh

On Wed, Jul 6, 2016 at 5:37 AM, Juan Valverde
 wrote:
> Hi there,
>
> We are working with Syrthes thermal. The output of such program is
> written in Ensight case format, version 6. All data is imported
> correctly from Paraview 4.3.1 except for one node, we tested in several
> different problems, whose temperature nodal value is incorrect. It
> should be 7.12e+02, and ends up being 7.12e22, to give an example.
> Therefore, the maximum is unreal and the whole surface plot is ruined. I
> checked with Paravis inside Salome 7.7.1 and 7.6.0, and also, as pointed
> out before with Paraview 4.3.1.
>
> I also run the ens_checker (ensight case file health checker) on the
> files and they seem to be ok. I also inspected the results file and all
> nodal data is correct, no e+22 found in these files.
>
> Did anybody have the same problem? It seems related to the Ensight
> reader or plugin used by Paravis/Paraview.
> Attached example plots.
> Any help would be much appreciated.
>
> Regards,
>
> Juan
>
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> Please keep messages on-topic and check the ParaView Wiki at:
> http://paraview.org/Wiki/ParaView
>
> Search the list archives at: http://markmail.org/search/?q=ParaView
>
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Re: [Paraview] [Paraview-developers] ParaView bug hackathon

[Utkarsh Ayachit]

Following on the footsteps of the successful VTK hackathon, we'll be
doing a ParaView hackathon next week on Wed. July 13.

Please email me (or the list) if you're attending. The objectives will
be similar:

* clean up pending MRs
* clean up bugs reported on bug tracker
* update/triage dashboard machines

Utkarsh

On Mon, Jun 20, 2016 at 4:30 PM, Berk Geveci  wrote:
> Hi folks,
>
> We are planning a ParaView bug hackathon on July 13. Going forward, we would
> like this to be a monthly event during which the community comes together to
> address bugs reported to the tracker. It will be an all day event that we
> will host physically at Kitware Headquarters in Clifton Park, NY as well as
> online via Google Hangout. All are welcome to attend as long as they know
> the code base enough to fix bugs.
>
> Any questions? Comments? Any potential issue with the date?
>
> Best,
> -berk
>
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Re: [Paraview] plugin error: "Input for algorithm vtkPVPostFilter is of type ..., but a vtkPolyData is required"

[corinna reuter]

Hi Cory,
I attach the complete sources for compiling and testing the described
problem.
(Tested with Paraview 5.0.1 compiled from sources.)

Corinna

On Thu, Jul 7, 2016 at 7:31 PM, corinna reuter 
wrote:

> Yes, FillOutputPortInformation already looks exactly as you say.
>
> I gave the link to the complete example code in my initial question:
> http://www.vtk.org/Wiki/VTK_Examples_vtkAlgorithm_Source
> I changed a few lines to make it compile with Paraview 5.0.1 (see the
> comments in the CMakeLists.txt with my initial question). In addition, I
> can send to you tomorrow a small source archive ready for compilation.
>
> I'll also check vtkTable to see if it solves my problem. I thought of just
> deriving the vtkTest class from vtkDataSet and returning a fake, empty
> dataset while keeping the information from which the actual vtkDataSet will
> be processed downstream in the pipeline. Do you think that this workaround
> is feasible, or what other problems should I excpect?
>
> Thank you
> Corinna
>
>
> On Thu, Jul 7, 2016 at 3:03 PM, Cory Quammen 
> wrote:
>
>> Hi Corinna,
>>
>> Does vtkTestSource override the FillOutputPortInformation() member
>> function? It should look like
>>
>>
>> //
>> int vtkTestSource::FillOutputPortInformation(
>>   int vtkNotUsed(port), vtkInformation* info)
>> {
>>   // now add our info
>>   info->Set(vtkDataObject::DATA_TYPE_NAME(), "vtkTest");
>>   return 1;
>> }
>>
>> If that doesn't fix the error, let us know.
>>
>> You may run into other problems with a custom data object - you may
>> want to derive your vtkTest class from one of the vtkDataObject
>> ParaView works with, e.g., vtkTable.
>>
>> Thanks,
>> Cory
>>
>> On Thu, Jul 7, 2016 at 1:44 AM, corinna reuter
>>  wrote:
>> > Doesn't anybody know, why a vtkAlgorithm which produces a custom class
>> > (vtkTest) that is not derived from vtkDataSet show the error "... but a
>> > vtkPolyData is required"?
>> >
>> > A side remark, previously I wrote that the custom class "vtkTest" is
>> neither
>> > derived from vtkDataSet nor from vtkDataObject. Actually it is derived
>> from
>> > vtkDataObject.
>> >
>> > If my question doesn't make sense, please let me know. Maybe it is
>> against
>> > every paraview design, so that I'll have to find a completely different
>> > solution. But it becomes more and more urgent for me to include a data
>> > source (mySQL database) of custom classes (not vtkDataSets) in the
>> paraview
>> > tree.
>> >
>> > Thank you
>> > Corinna
>> >
>> > On Mon, Jul 4, 2016 at 3:09 PM, corinna reuter <
>> corinnareute...@gmail.com>
>> > wrote:
>> >>
>> >> To anybody experienced in plugin programming:
>> >>
>> >> I am trying to include items in the paraview tree, which are not
>> derived
>> >> from vtkDataSet or vtkDataObject. For example, a mySQL database should
>> be
>> >> allowed as a data source, which delivers data in an intermediate
>> format.
>> >> Next I'd implement filters which take the intermediate format and
>> produce
>> >> vtkDataSets as output.
>> >>
>> >> Is it possible to use such "abstract" (not vtkDataSet) objects in the
>> >> paraview tree as a representation of the intermediate format? I have
>> tried
>> >> to integrate the example for custom classes from
>> >> http://www.vtk.org/Wiki/VTK_Examples_vtkAlgorithm_Source into a
>> paraview
>> >> plugin (CMakeLists and servermanager xml below). When the plugin is
>> loaded
>> >> and I add a source of the new type AlgorithmSourceExample, this error
>> is
>> >> thrown:
>> >>
>> >> ERROR: In
>> >>
>> /opt/ParaView-v5.0.1/VTK/Common/ExecutionModel/vtkDemandDrivenPipeline.cxx,
>> >> line 810
>> >> vtkPVPostFilterExecutive (0x3857810): Input for connection index 0 on
>> >> input port index 0 for algorithm vtkPVPostFilter(0x3858910) is of type
>> >> vtkTest, but a vtkPolyData is required.
>> >>
>> >> What do I need to change such that the vtkTest objects, produced by
>> >> AlgorithmSourceExample, can live in the paraview tree?
>> >>
>> >> Thank you
>> >> Corinna
>> >>
>> >> CMakeLists.txt:
>> >>
>> >> FIND_PACKAGE(ParaView REQUIRED)
>> >> INCLUDE(${PARAVIEW_USE_FILE})
>> >> #changes required in
>> >> http://www.vtk.org/Wiki/VTK_Examples_vtkAlgorithm_Source:
>> >> # remove vtkCxxRevisionMacro calls
>> >> # change vtkTypeRevisionMacro into vtkTypeMacro
>> >> # remove call output->SetPipelineInformation( outInfo );
>> >>  ADD_PARAVIEW_PLUGIN(
>> >>AlgorithmSourceExample
>> >>   "1.0"
>> >>SERVER_MANAGER_XML AlgorithmSourceExample.xml
>> >>SERVER_MANAGER_SOURCES vtkTestSource.cxx vtkTest.cxx
>> >>  )
>> >>
>> >> AlgorithmSourceExample.xml:
>> >>
>> >> 
>> >>   
>> >>> >> label="AlgorithmSourceExample">
>> >>  > >> long_help="AlgorithmSourceExample"
>> >> short_help="AlgorithmSourceExample">
>> >>  
>> >>
>> >>  
>> >> 
>> >
>> >
>> >
>> >