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[Question #681775]: particle impot

 

New question #681775 on Yade:
https://answers.launchpad.net/yade/+question/681775

Hello, everyone. 
I made a sample of the particles before the model was run. After the sample preparation, I want to import the particles through the example provided by script [1]. I ran the following three lines in the program:

#########################################

>From Yade import export

VtkExporter = export. VTKExporter ('/tmp/vtkExporter Testing')

VtkExporter. exportSpheres (what = Dict (dist ='b. state. pos. norm ()')

#########################################

However, after the operation, the following errors occurred:

ValueError                                Traceback (most recent call last)
/usr/bin/yadedaily in <module>()
----> 1 vtkExporter.exportSpheres(what=dict(dist='b.state.pos.norm()'))

/usr/lib/x86_64-linux-gnu/yadedaily/py/yade/export.py in exportSpheres(self, ids, what, comment, numLabel, useRef)
    428                         outFile.write("%g\n"%(b.shape.radius))
    429                 # write additional data from 'what' param
--> 430                 for name,command in what: # for each name...
    431                         test = eval(command) # ... eval one example to see what type (float, Vector3, Matrix3) the result is ...
    432                         # ... and write appropriate header line and loop over all bodies and write appropriate vtk line(s)

ValueError: too many values to unpack
######################################### 
I would appreciate it if you could give me some advice.

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