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								Hi Jimmy,
 
 If you like to assign different Kxx based on elevation/depth, you can simply do it by using expression formula.
 
 You can also select elements in a specific slice by clicking select all in slice view.
 
 Hope it helps!
 
 Best,
 James
 
 
 
 
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								Hi DrGuti,
 
 Thanks a lot for your reply!
 
 Yes, I will explore the Rhino and ask you if I have more specific questions.
 
 Really appreciate you help!
 
 Best,
 James
 
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								Hi DrGuti,
 
 Thank you so much for your answer.
 
 Do you mind to let me know what software do you use to create the STL surface and tet-gen algorithm?
 
 Best,
 James
 
 
 
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								Hi All,
 
 I have STL Surface Mesh object that I want to use to create a group selection below this surface?
 
 Is there anyone know how to do it?
 
 I can convert this STL file to a DXF or SHP files if needed.
 
 Thanks a lot!
 
 Best,
 James
 
 
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								Hi Christian,
 
 Your question is interesting!
 
 I would like to follow this discussion.
 
 I have used the smesh file to export the FEFLOW geometry to another software like FLAC3D.
 
 But I am not sure if we can use it to set elevation of nodes in FEFLOW.
 
 Best,
 James
 
 
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								Hi Peter,
 
 Thanks for your answer. I have tried it and this feature is so awesome!
 
 Please find a short recording that Jintao shared with me to do it.
 
 Best,
 James
 
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								Hello all,
 
 Is there any feature in FEFLOW where we can run 2D analysis using the cross section taken from a 3D model?
 
 This feature would be helpful to examine the model response I believe.
 
 Thanks a lot!
 
 Best,
 James
 
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								Hi There!
 
 Yes, you can set the monitoring points (called observation points in FEFLOW) in Edit - Observations Points. Once you have the points, you can see the time series results after start running the analysis in View - Charts.
 
 Cheers!
 
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								Thanks Jintao! The solution works! 
 
 However, as we discussed via email, this cannot be implemented for time series interpolation.
 
 I am just writing this with the hope that other user can benefit from our discussion.
 
 Cheers,
 James
 
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								That works! thank you so much Peter! Jintao also mentioned that we can do this by "Select Complete Slice", however as my model is a sloping ground built with 3D layered approach, this method didn't work. I need to get the intersection of 2 selections. Thanks a lot Jintao and Peter!