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[Mahdeyeh <question698346@xxxxxxxxxxxxxxxxxxxxx>]

Question #698346 on Yade changed:
https://answers.launchpad.net/yade/+question/698346

Description changed to:
I load a saved file of simulation and after loading it, I import every
function in original script. every thing is good but it does n`t export
VTK.

When I run main script (not saved file) , all things are ok and data
export to VTK . Here is its code:

"
from yade import export,polyhedra_utils
import os
from yade import plot
import math
from yade import utils
import pylab
import matplotlib; matplotlib.rc('axes',grid=True)
from matplotlib import pyplot
from yade import qt
import numpy as np
from numpy import *
from yade import export as expt
.
.
.

os.mkdir(O.tags['id'])

ClumpVtkData = expt.VTKExporter(O.tags['id']+'/'+'clumpData')            
def VTKview():
    for b in O.bodies:
        ClumpVtkData.exportSpheres(ids='all', what={('color','b.shape.color')})
        ClumpVtkData.exportFacets(ids='all', what={('color','b.shape.color')})

O.engines=O.engines+[PyRunner(iterPeriod=70000,command='VTKview()',label="VTKview")] 
"

But now in saved file, I could n`t export any vtk file.  (I import all codes above in terminal after loading saved file, but something is wrong .)
When I type     VTKview()       in terminal (when saved file of simulation is running), it says: 

"global name 'ClumpVtkData' is not defined"

Please help me.

Best regards,

ubuntu : 18.04
yade 2018.02b

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