Re: [Paraview] XDMF file with multiple temporal collections
Hello It's been a while but I'm back to trying to solve this issue. Unfortunately this doesn't solve the issue. Using paraview 5.4.1 from latest Fedora… Anything else I should try ? -- Nicolas On 11/20/2017 10:46 PM, David E DeMarle wrote: Try dropping your standalone external geometry and topology and just place them in the first timestep's grid. It might make the reader happier. Like so... http://www.w3.org/2001/XInclude; Version="3.3"> Name="Collection"> Precision="4">0 0 0 1 0 0 0 1 0 1 1 0 0 0 1 1 0 1 0 1 1 1 1 1 Precision="8">9 0 1 3 2 4 5 7 6 Precision="8">0 0 0 0 0 0 0 0 ... ... ___ Powered by www.kitware.com Visit other Kitware open-source projects at http://www.kitware.com/opensource/opensource.html 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 Follow this link to subscribe/unsubscribe: https://paraview.org/mailman/listinfo/paraview
[Paraview] XDMF file with multiple temporal collections
Hello all, I'm trying to generate a valid (at least, well-read by paraview) XDMF file. It represents a single topology/geometry, with multiple scalars, varying over time. I've attached the file I'm trying to read with paraview. It behaves almost as I want, but oddly enough, only with scalars tagged as "partial" by paraview. One of the scalars "animation", the first one in the XDMF file, is completely buggy, possibly with values from other scalars. Is there something wrong with my XDMF file or is this a bug in paraview? Thanks for your help, -- Nicolas http://www.w3.org/2001/XInclude; Version="3.0"> /tmp/test-calib/1_vt_1_endo_smooth/triangles.bin /tmp/test-calib/1_vt_1_endo_smooth/points.bin /tmp/test-calib/1_vt_1_endo_smooth/eikonal-fimh-style_0.bin /tmp/test-calib/1_vt_1_endo_smooth/eikonal-fimh-style_1.bin /tmp/test-calib/1_vt_1_endo_smooth/eikonal-fimh-style_2.bin /tmp/test-calib/1_vt_1_endo_smooth/eikonal-fimh-style_3.bin /tmp/test-calib/1_vt_1_endo_smooth/eikonal-fimh-style_4.bin /tmp/test-calib/1_vt_1_endo_smooth/eikonal-cma-es_0.bin /tmp/test-calib/1_vt_1_endo_smooth/eikonal-cma-es_1.bin /tmp/test-calib/1_vt_1_endo_smooth/eikonal-cma-es_2.bin /tmp/test-calib/1_vt_1_endo_smooth/eikonal-cma-es_3.bin /tmp/test-calib/1_vt_1_endo_smooth/eikonal-cma-es_4.bin /tmp/test-calib/1_vt_1_endo_smooth/rhythmia_0.bin /tmp/test-calib/1_vt_1_endo_smooth/rhythmia_1.bin /tmp/test-calib/1_vt_1_endo_smooth/rhythmia_2.bin /tmp/test-calib/1_vt_1_endo_smooth/rhythmia_3.bin /tmp/test-calib/1_vt_1_endo_smooth/rhythmia_4.bin ___ Powered by www.kitware.com Visit other Kitware open-source projects at http://www.kitware.com/opensource/opensource.html 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 Follow this link to subscribe/unsubscribe: http://public.kitware.com/mailman/listinfo/paraview
[Paraview] Add data to the pipeline browser via CLI
Hello, I'm wondering if there is an option somewhere or a CLI argument to "open" a file (from the file manager or terminal) in the last opened paraview window. Right now it launches a new paraview instance for every file I open. My workaround is to use drag'n'drop but I'd be happy avoid using the mouse as much as possible. Thanks, -- Nicolas ___ Powered by www.kitware.com Visit other Kitware open-source projects at http://www.kitware.com/opensource/opensource.html 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 Follow this link to subscribe/unsubscribe: http://public.kitware.com/mailman/listinfo/paraview
[Paraview] Best format for constant structure, varying scalars over time?
Hello, I come here for advice. I need to visualize scalars that change over time, on a constant mesh structure. The points don't move, the triangles don't move. What I'm doing right now is save the scalar values and mesh structure in a legacy VTK for each time step. It works but doesn't sound really clever, knowing that the mesh part never changes. I'm just wasting A LOT of HDD space. There are probably a lot of solutions for this, but I'm a bit lost. My scalars values are first generated as numpy arrays, so right now I'm using the nice pyvtk python package. What are my alternative options here? Which python library should I use? Regards, -- Nicolas Cedilnik ___ Powered by www.kitware.com Visit other Kitware open-source projects at http://www.kitware.com/opensource/opensource.html 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 Follow this link to subscribe/unsubscribe: http://public.kitware.com/mailman/listinfo/paraview
Re: [Paraview] "Rotate" look up table
Hi all,
I'm replying to my own email because I worked out a solution and wanted
to share but also because I believe what I'm doing is FAR from optimal
and hope that someone
Would it be possible with python scripting to create an animation by
"rotating" the look up table in a way that would look like this:
https://www.youtube.com/watch?v=qA_vInXwdKM#t=3m25s ? It is a
pseudo-animation created by changing the "range" of the LUT.
So I made this python script (see attachment) that generates different
meshes with scalar values "rotated" (I don't find a better term to
describe what I'm doing).
It works and make it easy to play the animation by opening the produced
vtk files as a sequence in paraview.
However, every vtk file contains both the mesh geometry and the scalar
values, but only the latter change. What would be the right way to
animate only the scalar values and not the mesh geometry? What data
format should I use? How could I import it into an animation in paraview?
Thanks for your guidance
--
Nicolas
#!/usr/bin/env python
from sys import argv
import numpy as np
import pyvtk
def open_binary(file_name):
reader = vtk.vtkUnstructuredGridReader()
reader.SetFileName(file_name)
reader.Update()
unstr_grid = reader.GetOutput()
triangles = vtk_to_numpy(unstr_grid.GetCells().GetData())
triangles = triangles.reshape((int(len(triangles) / 4), 4))[:, 1:]
points = vtk_to_numpy(unstr_grid.GetPoints().GetData())
scalars = pyvtk.Scalars(
vtk_to_numpy(unstr_grid.GetPointData().GetArray(0)))
points_data = pyvtk.PointData(scalars)
grid = pyvtk.UnstructuredGrid(points, triangle=triangles)
mesh = pyvtk.VtkData(grid, points_data)
return mesh
file_name = argv[1]
output_prefix = argv[2]
n = int(argv[3])
try:
mesh = pyvtk.VtkData(file_name)
except NotImplementedError:
mesh = open_binary(file_name)
t0 = np.copy(mesh.point_data.data[0].scalars)
scalars_range = np.nanmax(t0) - np.nanmin(t0)
step = scalars_range / n
for i in range(1, n):
mesh.tofile(file_name, format='binary')
vals = t0 + i * step
above = np.nan
vals[vals > np.nanmax(t0)] = vals[vals > np.nanmax(t0)] - scalars_range
mesh.point_data.data[0].scalars = vals
file_name = "{}{:04d}.vtk".format(output_prefix, i)
print(file_name)
___
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[Paraview] "Rotate" look up table
Hello, Would it be possible with python scripting to create an animation by "rotating" the look up table in a way that would look like this: https://www.youtube.com/watch?v=qA_vInXwdKM#t=3m25s ? It is a pseudo-animation created by changing the "range" of the LUT. Would paraview be the right tool to do that? I have a vtk file containing a triangular mesh with scalar values assigned to each point. I'm already using paraview and I'm pretty satisfied with the static output. I was wondering how complicated it would be to "pseudo-animate" it. Maybe someone can point me to some documentation or other tools that might do the job... Thanks -- Nicolas Cedilnik ___ Powered by www.kitware.com Visit other Kitware open-source projects at http://www.kitware.com/opensource/opensource.html 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 Follow this link to subscribe/unsubscribe: http://public.kitware.com/mailman/listinfo/paraview
