Jeremias,
When you set a radius and number of points in the probe filter, then the filter
will randomly sample the volume within the defined sphere the number of times
requested. The resulting values are the field values at those randomly sampled
locations.
An easy way to get an average of your samples is to run the result of the probe
filter through the descriptive statistics filter. Look at the "Statistical
Model" table and it will report the mean value for each field. (Note that if
you are using ParaView 5.4 there is a bug, #17627, that shows the Statistical
Model table wrong by default. You have to also change the Composite Data Set
Index parameter in the Display part of the properties panel to select only the
Derived Statistics block.)
A couple of caveats to this approach. First, because the sampling is random,
don't expect the exact same answer every time you run it. Second, if one of the
samples happens to lie outside of the mesh, that sample will be filled with 0's
for all fields. That will throw off the average value.
That said, another approach you might want to take is to first filter the data
in a way that blurs out the noise first. One way you can do that is to run the
Point Volume Interpolator filter. Change the Kernel to something like Gaussian
(the default Voronoi filter will not do the averaging that you want). Set the
radius appropriately. You can then probe the resulting data set with a single
value (radius 0) and immediate see the "averaged" result.
-Ken
On 2/5/18, 5:27 PM, "ParaView on behalf of Jeremias Gonzalez"
<paraview-boun...@paraview.org on behalf of jgonzale...@ucmerced.edu> wrote:
Hi, I'm trying to find a way to get the average value around a point in
a mesh that I know to be noisy due to its coarseness. Currently, I am
unable to understand determine the exact nature of the radius and number
of point parameters from the documentation (
https://www.paraview.org/ParaView/Doc/Nightly/www/py-doc/paraview.simple.ProbeLocation.html
), but I am guessing from some third party posts that the radius enables
one to find a point nearby to a desired point in a given region, and the
number of points expands the amount captured. The problem I have past
that, if those are correct understandings, is what to do with the probe
once I have it. Looking at the resulting spreadsheet from using the
probe location with a given radius and number of points each labelled
from 0 to 99, for example, it seems that I may have to use another loop,
after I introduce and use the probe, with code like
my_running_total=0
for y in range(0, 99):
my_running_total +=
mycalcprobepoint.GetPointData(y).GetArray('Result').GetValue(0)
my_running_total /= 100
that will take that batch of points collected by the probe and average
all the values I want. Is this the correct interpretation, and a valid
way to carry out this objective?
_______________________________________________
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
_______________________________________________
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
