[Paraview] How find local maxima of a scalar field in a slice

Caffagni, Andrea Andrea.Caffagni at ferrari.com
Mon Apr 16 07:24:10 EDT 2018


Dear Mathieu,
Thanks for your suggestions.
If I have understood correctly, your method can works only in the case in which I have only a maxima like this case:
https://upload.wikimedia.org/wikipedia/commons/c/ce/Gaussian_2d.png

But if I have to find the local maxima in this case:
https://www.mathworks.com/matlabcentral/mlc-downloads/downloads/submissions/27178/versions/6/previews/html/psPeaksExample.html
in which I have three different local max peaks, your method can works correctly?

Best regards,
Andrea

From: Mathieu Westphal [mailto:mathieu.westphal at kitware.com]
Sent: Monday, April 16, 2018 08:46
To: Caffagni, Andrea
Cc: paraview at public.kitware.com
Subject: Re: [Paraview] How find local maxima of a scalar field in a slice

Dear Andrea
The range maximum value can be read directly in the information tab of your data, in the "Data Arrays" section.
Or you can directly create a new "Spreadsheet view", show your data in it and sort the data by clicking on your scalars array header, you will know the value et the localisation.
Best,


Mathieu Westphal

On Sun, Apr 15, 2018 at 7:43 PM, Caffagni, Andrea <Andrea.Caffagni at ferrari.com<mailto:Andrea.Caffagni at ferrari.com>> wrote:
Dear all,
I need to find the local maxima of a scalar field on a slice in Paraview.
I need both the value of my scalar variable and also the tridimensional position of the local maxima.
Searching on the blog, I have found a possible vtk function:
https://www.vtk.org/doc/release/5.0/html/a01562.html

Someone of you know some simpler and faster way to solve my problem (maybe using numpy library)?

I thank you in advance for all suggestions,
Andrea

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