[Paraview] VTK Writer
Luis Martinez
lamtmartos at hotmail.com
Fri May 11 19:28:32 EDT 2012
Hi all,
I was able to get it to work in 3.14 by doing:
PlotOverLine1.UpdatePipeline()
before creating the writer.
Thanks,
Tony
> Date: Fri, 11 May 2012 09:18:29 -0400
> Subject: Re: [Paraview] VTK Writer
> From: utkarsh.ayachit at kitware.com
> To: mmnasr at gmail.com
> CC: lamtmartos at hotmail.com; paraview at paraview.org
>
> There definitely seems to be a bug in the WriterFactory which fails to
> return valid readers when running through Python. We are looking into
> it.
>
> Utkarsh
>
> On Thu, May 10, 2012 at 10:38 PM, Mohamad M. Nasr-Azadani
> <mmnasr at gmail.com> wrote:
> > Luis,
> >
> > I had similar problem with some writers.
> > It was very strange and sporadic (it occurred both when I used *.vtu and
> > *.csv writers).
> > I kind of got the feeling that most of the times it appeared when I ran PV
> > in parallel so I could solve it by running PV in serial mode.
> > But as I said, I am not 100% what is going on.
> >
> > Good luck,
> > Mohamad
> >
> > On Sun, May 6, 2012 at 11:44 AM, Luis Martinez <lamtmartos at hotmail.com>
> > wrote:
> >>
> >> Hi all,
> >>
> >> I have a pvbatch script that worked in version 3.12. It uses plot over
> >> line and writes out CSV data. Now I get the following error in version
> >> 3.14:
> >>
> >> Is this a bug or am I supposed to call the writer differently in 3.14?
> >>
> >> Thanks!
> >>
> >> Tony
> >>
> >>
> >>
> >> ERROR: In
> >> /build/buildd/paraview-3.14.1/ParaViewCore/ServerManager/vtkSMWriterFactory.cxx,
> >> line 374
> >> vtkSMWriterFactory (0x17ee360): No matching writer found for extension:
> >> csv
> >>
> >> Traceback (most recent call last):
> >> File "wakeProfilesAllTurbines.py", line 65, in <module>
> >> writer.FieldAssociation = "Points"
> >> AttributeError: 'NoneType' object has no attribute 'FieldAssociation'
> >>
> >>
> >>
> >>
> >> Here is the script Im using:
> >>
> >>
> >>
> >> try: paraview.simple
> >> except: from paraview.simple import *
> >> paraview.simple._DisableFirstRenderCameraReset()
> >> import os
> >> import math
> >> import matplotlib as mpl
> >> mpl.use('Agg')
> >> import matplotlib.pyplot as plt
> >> import csv
> >> from scipy.integrate import trapz
> >> # Current location
> >> directory=os.getcwd()
> >> if not os.path.exists('./wakeProfiles/plots/'):
> >> os.makedirs('./wakeProfiles/plots/')
> >> # Rotor Diameter
> >> D=93
> >> width=D*1.5
> >> profiles=[0.125,0.25,0.5,0.75,1,2,3,4]
> >> layout=open('./layout.dat')
> >> Umean_slice_0_vtk = LegacyVTKReader(
> >> FileNames=[directory+'/../ADM/sliceDataADM/12746.8908019/Umean_slice_0.vtk']
> >> )
> >> Umean_slice_1_vtk = LegacyVTKReader(
> >> FileNames=[directory+'/../ALM/sliceDataALM/12771/Umean_slice_0.vtk'] )
> >> SetActiveSource(Umean_slice_0_vtk)
> >> CellDatatoPointData1 = CellDatatoPointData()
> >> SetActiveSource(CellDatatoPointData1)
> >> Calculator1 = Calculator()
> >> Calculator1.AttributeMode = 'point_data'
> >> Calculator1.Function = 'Umean_X*cos(0.84444265) + Umean_Y*sin(0.84444265)'
> >> Calculator1.ResultArrayName = 'U_row'
> >> SetActiveSource(Umean_slice_1_vtk)
> >> CellDatatoPointData2 = CellDatatoPointData()
> >> SetActiveSource(CellDatatoPointData2)
> >> Calculator2 = Calculator()
> >> Calculator2.AttributeMode = 'point_data'
> >> Calculator2.Function = 'Umean_X*cos(0.84444265) + Umean_Y*sin(0.84444265)'
> >> Calculator2.ResultArrayName = 'U_row'
> >> for i, turbine in enumerate(layout):
> >> for profile in profiles:
> >> SetActiveSource(Calculator1)
> >> PlotOverLine1 = PlotOverLine( Source="High Resolution Line Source"
> >> )
> >> PlotOverLine1.Source.Resolution = 100
> >> alpha0=0.84444265-math.atan((width/2)/(profile*D))
> >> alpha1=0.84444265+math.atan((width/2)/(profile*D))
> >> L=math.sqrt((D*profile)**2+(width/2)**2)
> >> x0=float(turbine.split()[0])+L*math.cos(alpha0)
> >> y0=float(turbine.split()[1])+L*math.sin(alpha0)
> >> x1=float(turbine.split()[0])+L*math.cos(alpha1)
> >> y1=float(turbine.split()[1])+L*math.sin(alpha1)
> >> PlotOverLine1.Source.Point1 = [x0, y0, 65.0]
> >> PlotOverLine1.Source.Point2 = [x1, y1, 65.0]
> >> if not os.path.exists('./wakeProfiles/'+str(profile)):
> >> os.makedirs('./wakeProfiles/'+str(profile))
> >> if not os.path.exists('./wakeProfiles/plots/'+str(profile)):
> >> os.makedirs('./wakeProfiles/plots/'+str(profile))
> >>
> >> nameADM=directory+'/wakeProfiles/'+str(profile)+'/ADM'+'turbine'+str(i+1)+'.csv'
> >> writer = CreateWriter(nameADM, PlotOverLine1)
> >> writer.FieldAssociation = "Points"
> >> writer.UpdatePipeline()
> >> del writer
> >> SetActiveSource(Calculator2)
> >> PlotOverLine2 = PlotOverLine( Source="High Resolution Line Source"
> >> )
> >> PlotOverLine2.Source.Resolution = 100
> >> PlotOverLine2.Source.Point1 = [x0, y0, 65.0]
> >> PlotOverLine2.Source.Point2 = [x1, y1, 65.0]
> >>
> >> nameALM=directory+'/wakeProfiles/'+str(profile)+'/ALM'+'turbine'+str(i+1)+'.csv'
> >> writer = CreateWriter(nameALM, PlotOverLine2)
> >> writer.FieldAssociation = "Points"
> >> writer.UpdatePipeline()
> >> del writer
> >> csvreader1 = csv.reader(open(nameADM,'rb'))
> >> csvreader2 = csv.reader(open(nameALM,'rb'))
> >> x,y,x1,y1=[],[],[],[]
> >> for j, line in enumerate(csvreader1):
> >> if j>0:
> >> x.append((float(line[5])-width/2)/D)
> >> y.append(float(line[0]))
> >> for j, line in enumerate(csvreader2):
> >> if j>0:
> >> x1.append((float(line[5])-width/2)/D)
> >> y1.append(float(line[0]))
> >> plt.plot(x,y,'-',label='ADM',color='black')
> >> plt.plot(x1,y1,'--',label='ALM',color='black')
> >> plt.xlabel('Distance')
> >> plt.ylabel(r'$U$ (m/s)')
> >> plt.legend(loc='best')
> >> plt.ylim([2,10])
> >>
> >> plt.savefig('./wakeProfiles/plots/'+str(profile)+'/turbine'+str(i+1)+'.eps')
> >>
> >> plt.savefig('./wakeProfiles/plots/'+str(profile)+'/turbine'+str(i+1)+'.png')
> >> plt.clf()
> >> del x,y,x1,y1,csvreader1,csvreader2
> >>
> >>
> >>
> >>
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> >>
> >
> >
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> > 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
> >
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