[Paraview] write csv file

Wed May 2 14:36:17 EDT 2018

Miguel thanks for your suggestions,
It works perfectly.

Best regards,
Andrea

From: aguirre.flanker at gmail.com [mailto:aguirre.flanker at gmail.com] On Behalf Of Miguel Aguirre
Sent: Wednesday, May 02, 2018 09:35
To: Caffagni, Andrea
Cc: paraview at public.kitware.com
Subject: Re: [Paraview] write csv file

Hello Andrea,

Maybe a Programmable Filter would be a better way. I use this approach to create csv files with data comming from slices:

import csv

#Create an empty csv file with headers:
FilePath = "C:/Users/Miguel Angel AGUIRRE/Desktop/DataOutput.csv"
Headers=["X","Y","Z","PRESSURE","VELOCITY"]
with open(FilePath, 'wb') as csvfile:
        filewriter = csv.writer(csvfile, delimiter=',')
        filewriter.writerow(Headers)

# Get array data from input:
X = inputs[0].Points[:,0][0]
Y = inputs[0].Points[:,1][0]
Z = inputs[0].Points[:,2][0]
PRESSURE = inputs[0] .GetPointData().GetArray(" PRESSURE ")
VELOCITY  = inputs[0] .GetPointData().GetArray("  VELOCITY  ")

# Add this data to the file (you can use an interation here if you want to do add info comming from several slices)
FieldData=[X,Y,Z, PRESSURE, VELOCITY ]
with open(FilePath, 'a') as csvfile:
           filewriter = csv.writer(csvfile,lineterminator='\n')
           filewriter.writerow(FieldData)

I hope this will be useful.

Best regards,

Miguel

On Wed, May 2, 2018 at 8:05 AM, Caffagni, Andrea <Andrea.Caffagni at ferrari.com<mailto:Andrea.Caffagni at ferrari.com>> wrote:
Dear users,
I need to write in a .csv file some PointData from a slice.
I wrote my point values inside a ‘for’ cycle thus I would maintain only one .csv file and append each time the new data to this.
For this I have created the following commands in my script:

                # create a new 'Pass Arrays'
                passArrays1 = PassArrays(Input=calculator7)
                UpdatePipeline()

                # Properties modified on passArrays1
                passArrays1.PointDataArrays = ['pressure', 'velocity']
                UpdatePipeline()

                # Create a new 'SpreadSheet View'
                spreadSheetView1 = CreateView('SpreadSheetView')
                spreadSheetView1.ColumnToSort = ''
                spreadSheetView1.BlockSize = 1024L
                # uncomment following to set a specific view size
                # spreadSheetView1.ViewSize = [400, 400]

                # export view
                ExportView('C:/Users/acaffagni/Desktop/ciao.csv', ‘a’,view=spreadSheetView1)

Unfortunately, the program stop itself at the ‘Properties modified on passArrays1’, without updating the pipeline.
Maybe it exists a more smart way to create this .csv file.

Thanks a lot for the suggestions,
Andrea

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