Hi Dennis,
You can calculate cylindrical coordinates by utilizing
vtkCylindricalTransform within the python programmable filter. It is
something like below and faster than numpy.
---
import vtk
input = self.GetInput()
output = self.GetOutput()
transform = vtk.vtkCylindricalTransform()
transfor
Alan,
Yes, I am calling it many times at the same angular location, but it's tough to
know you're at the same angular location without calculating the angle.
Also, C++ is definitely orders of magnitude quicker, but once I have to compile
routines into Paravew life gets very complicated. We ba
Are there places on the cylinder you are calling atan2 with the same inputs,
returning the same data, lots of times? Alternatively, could you calculate
this in the simulation, and just add it to the simulation output? I am
speculating that a C++ call to atan2 may be faster than numpy?
Alan
F
All,
If I wanted to run atan2(X,Y) on millions and millions of nodes to calculate
cylindrical coordinates, but found that numpy.atan2 in a Programmable Filter
was taking 45 minutes to run, what should I do to make it much faster?
Thanks for any hints
Dennis
__
Resampling it into vtkImageData is what I want to take in the current
circumstance. Thank you both. Have a great weekend!
Weiguang
On 4/27/2018 12:53 PM, Aashish Chaudhary wrote:
I am not aware of any plans for volume rendering for rectilinear
volume but as I David mentioned, sampling it to t
I am not aware of any plans for volume rendering for rectilinear volume
but as I David mentioned, sampling it to the image space is what we have
discussed / talked about.
- aashish
On Fri, Apr 27, 2018 at 12:30 PM David E DeMarle
wrote:
> Not that I know of.
>
> We are more likely to make the
Hi David,
Thanks for confirming it. Does Kitware have a plan to implement volume
rendering for rectilinear volume? You see the spectrum from
vtkImageData, to vtkRectilinearGrid, vtkStructuredGrid --- volume
rendering is implemented on both ends but not for the middle one, which
is a bit odd t
Not that I know of.
We are more likely to make the conversion to image based volume rendering
automatic, faster and more precise.
David E DeMarle
Kitware, Inc.
Principal Engineer
21 Corporate Drive
Clifton Park, NY 12065-8662
Phone: 518-881-4909
On Fri, Apr 27, 2018 at 12:23 PM, Weiguang Guan
You are correct it will not directly volume render vtkRectilinearGrids.
Use threshold filter (all values) to map to a vtkUnstructuredGrid for
direct rendering but at a cost of memory explosion.
Apply the resample to image filter to map to vtkImageData for fast volume
rendering, but at a cost of tr
I didn't a test and I'm surprised that Paraview cannot do volume
rendering on rectilinear data. Can someone confirm it or I made a mistake?
Cheers,
Weiguang
--
--
Weiguang Guan
Research Scientist
RHPCS, McMaster University
Phone: 905-525-9140 x22540
Hello,
This has been reported already in
https://gitlab.kitware.com/paraview/paraview/issues/18128 and will be fixed
soon in master.
Thanks for your report.
On Fri, 27 Apr 2018, 15:15 , wrote:
> Hello All
>
> Sorry if this has been reported before, but I could not find any
> discussion about i
Dear Mathieu,
Thank you very much for this tip, it works !
Best regards,
Gaël Grail
2018-04-27 14:51 GMT+02:00 Mathieu Westphal :
> Dear Gaël
>
> In order to acess vtk*XML*UnstructuredGridReader in the python Script of
> a Programmable Filter/Source you need to do the following :
>
> import vtk
Dear Gaël
In order to acess vtk*XML*UnstructuredGridReader in the python Script of a
Programmable Filter/Source you need to do the following :
import vtk.vtkIOXML as ext
reader = ext.vtkXMLUnstructuredGridReader()
If you actually need the vtkUnstructuredGridReader in the python Script of
a Pr
Dear all,
New to the mailing, and first question for me: hi everyone !
I'm using the 5.4 binary version of Paraview available online, I'm not
compiling my own version.
I'm trying to encapsulate an exe program in a programmable filter ; based
on the programmable filter inputs and parameters, I run
Hello,
Is it possible to include Not a Number values in the legacy vtk file format ?
I have tried and I get length mismatch errors on import. I am using Polydata -
Cell data - Scalars - Float, writing the data from a Python script in a
different application.
If not, would it be possible to write
Hi Phuripan,
HDF5 is not a file format in itself, only Salvus tools will be able to
manipulate it.
If you are not able to use the script, you should ask Salvus community for
help.
Best,
Mathieu Westphal
On Fri, Apr 27, 2018 at 1:49 PM, Phuripan Jangthongsiri <
bung_m...@hotmail.com> wrote:
> H
Typically an .xdmf file is an _additional_ file to the .h5 file and it does not
replace the .h5 file. Does the python command generate a .xdmf or .xmf file
after it completes?
--
Michael Jackson | Owner, President
BlueQuartz Software
[e] mike.jack...@bluequartz.net
[w] www.bluequart
Hi,
It's called Salvus. It's a software for Seismology. They have a command that: !
python ./petsc_gen_xdmf.py name_of_your_file.h5
and it should convert .h5 file to .xdmf but it doesn't work. I was wondering if
there are any converters out there or any codes that I could run on python?
Cheers
Hi Phuripan,
Which software are you using to produce your .h5 files ?
Best,
Mathieu Westphal
On Fri, Apr 27, 2018 at 12:09 PM, Phuripan Jangthongsiri <
bung_m...@hotmail.com> wrote:
> Hi there!
>
> Thanks for your answers. I've been trying to find a way to convert .h5
> file to xdmf file. Do y
Hi Miguel,
I fail to reproduce with a single source in a custom filter.
Could you please precise which version of ParaView you are using and which
filter you are putting in a custom filter ?
Thanks,
Best regards,
Mathieu Westphal
On Fri, Apr 27, 2018 at 12:54 PM, Miguel Aguirre
wrote:
> Hi a
Hi all,
I would like to know if its possible to create a custom filter without an
input.
In fact, I would like to use a data source followed by some filters and
then to group all these actions (including the data source) in a single
Custom Filter. However Paraview crashes when I click on the "fin
Hi there!
Thanks for your answers. I've been trying to find a way to convert .h5 file to
xdmf file. Do you know the easiest way to do that?
Sincerely,
Phuripan Jangthongsiri
From: Mathieu Westphal
Sent: Friday, April 27, 2018 9:09 AM
To: Phuripan Jangthongsiri
C
Dear Phuripan,
ParaView support some hdf5 based format already, so you may want to try
that first, i've included a list a .h5 based format supported by ParaView
natively.
TRUCHAS dataset
PDAL Files
Chombo Files
GTC Files
UNIC Files
VizSchema Files
H5Nimrod Files
Multilevel 3D Plasma Files
PFLOTRAN
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