# Do the vtkMeshQuality fonctions for "pyramids" and "wedges" really work ?
**URL:** https://discourse.paraview.org/t/do-the-vtkmeshquality-fonctions-for-pyramids-and-wedges-really-work/9895
**Category:** Development
**Tags:** python, vtk
**Created:** [June 23, 2022, 2:59pm UTC](https://discourse.paraview.org/t/do-the-vtkmeshquality-fonctions-for-pyramids-and-wedges-really-work/9895 "2022-06-23T14:59:25Z")
**Posts on this page:** 10
**Page:** 1
### Author:  [@Dav](https://discourse.paraview.org/u/Dav)
#### Post date: [June 23, 2022, 2:59pm UTC](https://discourse.paraview.org/t/do-the-vtkmeshquality-fonctions-for-pyramids-and-wedges-really-work/9895/1 "2022-06-23T14:59:25Z")
Dear community,
I am developing a filter on **vtkUnstructuredGrid** with Python. When using the **vtkMeshQuality** filter for example to determine the volume of “pyramids” cells with the functions **vtkMeshQuality: :PyramidVolume (vtkCell \*cell)**, I have this error :
AttributeError: ‘vtkmodules.vtkFiltersVerdict.vtkMeshQuality’ object has no attribute ‘PyramidVolume’
ERROR: In C:\glr\builds\paraview\paraview-ci\build\superbuild\paraview\src\VTK\Common\ExecutionModel\vtkExecutive.cxx, line 753
vtkPVCompositeDataPipeline (00000275D6F9D0C0): Algorithm vtkPythonAlgorithm(00000275FF8DF9C0) returned failure for request: vtkInformation (00000275F77C4C90)
the program does not recognize these functions for pyramids and wedge, but they are present in the docs ([https://vtk.org/doc/nightly/html/classvtkMeshQuality.html#details](https://vtk.org/doc/nightly/html/classvtkMeshQuality.html#details)). I don’t understand why.
Please what should I do to solve this problem?
Thank you for your answer
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### Author:  [@spyridon97](https://discourse.paraview.org/u/spyridon97)
#### Post date: [June 24, 2022, 9:59pm UTC](https://discourse.paraview.org/t/do-the-vtkmeshquality-fonctions-for-pyramids-and-wedges-really-work/9895/2 "2022-06-24T21:59:09Z")
@ben.boeckel Are static functions exposed in python?
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### Author:  [@spyridon97](https://discourse.paraview.org/u/spyridon97)
#### Post date: [June 24, 2022, 10:00pm UTC](https://discourse.paraview.org/t/do-the-vtkmeshquality-fonctions-for-pyramids-and-wedges-really-work/9895/3 "2022-06-24T22:00:39Z")
@Dav Have you tried just setting the quality metric that you want instead of using .e.g **PyramidVolume**?
P.S. would you mind showing me your code snipset?
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### Author:  [@cory.quammen](https://discourse.paraview.org/u/cory.quammen)
#### Post date: [June 24, 2022, 11:17pm UTC](https://discourse.paraview.org/t/do-the-vtkmeshquality-fonctions-for-pyramids-and-wedges-really-work/9895/4 "2022-06-24T23:17:01Z")
> [@spyridon97](#):
>
> Are static functions exposed in python?
Yes. `vtkFoo::Bar()` is exposed as `vtkFoo.Bar()`
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### Author:  [@cory.quammen](https://discourse.paraview.org/u/cory.quammen)
#### Post date: [June 24, 2022, 11:17pm UTC](https://discourse.paraview.org/t/do-the-vtkmeshquality-fonctions-for-pyramids-and-wedges-really-work/9895/5 "2022-06-24T23:17:52Z")
Which version of ParaView are you using? If older, it may genuinely not have those static member functions.
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### Author:  [@spyridon97](https://discourse.paraview.org/u/spyridon97)
#### Post date: [June 25, 2022, 12:06am UTC](https://discourse.paraview.org/t/do-the-vtkmeshquality-fonctions-for-pyramids-and-wedges-really-work/9895/6 "2022-06-25T00:06:39Z")
@Dav unless you are using Paraview master these functions won’t be available. These were introduced in [https://gitlab.kitware.com/vtk/vtk/-/merge\_requests/8832](https://gitlab.kitware.com/vtk/vtk/-/merge_requests/8832) and they will part of Paraview 5.11 soon. If you want to have access to these functions you can clone Paraview master.
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### Author:  [@Dav](https://discourse.paraview.org/u/Dav)
#### Post date: [June 25, 2022, 10:09am UTC](https://discourse.paraview.org/t/do-the-vtkmeshquality-fonctions-for-pyramids-and-wedges-really-work/9895/7 "2022-06-25T10:09:36Z")
Hello,
I’m using the 5.10.1 st Paraview version
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### Author:  [@Dav](https://discourse.paraview.org/u/Dav)
#### Post date: [June 25, 2022, 10:26am UTC](https://discourse.paraview.org/t/do-the-vtkmeshquality-fonctions-for-pyramids-and-wedges-really-work/9895/8 "2022-06-25T10:26:32Z")
Thank you very much Sir, but how to clone Paraview master? are there some tutorials?
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### Author:  [@spyridon97](https://discourse.paraview.org/u/spyridon97)
#### Post date: [June 25, 2022, 3:01pm UTC](https://discourse.paraview.org/t/do-the-vtkmeshquality-fonctions-for-pyramids-and-wedges-really-work/9895/9 "2022-06-25T15:01:31Z")
You can either follow this [link](https://gitlab.kitware.com/paraview/paraview/-/blob/master/Documentation/dev/build.md) to clone and compile paraview or download the **nightly** paraview version from [Download | ParaView](https://www.paraview.org/download/). The second option does not require any cloning or compiling
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### Author:  [@Dav](https://discourse.paraview.org/u/Dav)
#### Post date: [June 27, 2022, 8:40am UTC](https://discourse.paraview.org/t/do-the-vtkmeshquality-fonctions-for-pyramids-and-wedges-really-work/9895/10 "2022-06-27T08:40:54Z")
Thank you very much, it s working now