Yade

How to display force chain with varying width in ParaView

Asked by Huihuang Xia

Hi,

In post-processing, I plan to display force chain in ParaView. Thus, in my intrs files, CellDatatoPointData and Tube were used, but I can not adjust the width of the force chain corresponding to the magnitude of the forces, all the tubes were the same radius.
Figure 13b in a publication titled 'YADE-OPEN DEM: an opensource software using a discrete element method to simulate granular material' displayed a varying width of the force chain corresponding to the magnitude of the forces. Can you tell me how to display my results like that?

Many thanks,

Huihuang Xia

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Jan Stránský
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Jan Stránský (honzik) said : 		#1

Hello,
does [1] help?
cheers
Jan

[1] https://yade-dem.org/doc/user.html#rendering-interactions-as-force-chain

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Huihuang Xia (huihuangxia) said : 		#2

Hello,

Jan, thanks for your answer, but [1] only got an equivalent width of all the force chains as I described above.

Thus, I still need an answer.

Many thanks,

Huihuang Xia

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Best Jan Stránský (honzik) said : 		#3

Hello,

[1] normally works without problems achieving width according to the
force.. to help you more, we need more info:
- what version of Paraview do you use?
- did you actually try the last two points: Set “Vary Radius” to “By
Scalar” and Set “Radius” and “Radius Factor” such that the result looks OK ?
- also what you save (force magnitude or force vector?) might influence the
results, like [2]. Could you please provide a MWE or saved VTK data?

cheers
Jan

[2] https://answers.launchpad.net/yade/+question/441859

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Huihuang Xia (huihuangxia) said : 		#4

Hi,

Thanks Jan, I installed the latest version (5.3.0) of ParaView three days ago. I tried to adjust 'Radius Factor' and other parameters, but failed to get a varying width of tube. The VTK files contain too many lines of codes to upload here, thus I send one of VTK files to your E-Mial.

Thanks for your patience,

Huihuang

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Huihuang Xia (huihuangxia) said : 		#5

Besides, my YADE is a development version (2017.01a).

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Huihuang Xia (huihuangxia) said : 		#6

Thanks Jan Stránský, that solved my question.