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system error

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3 years 4 weeks ago #3607 by jiaxiangwang
system error was created by jiaxiangwang
Hi All
I used dream3D generated a microstructure. When I try to use Netgen mesh the stl file. If the microstructure only contain 1 single grain (1 stl file), it work. If it has multiple grain (more than 1 stl files), it show a system error: get neighbourpoints failed . Does any one know how to solve this?

Thank you for helping
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3 years 4 weeks ago #3613 by christopher
Replied by christopher on topic system error
The stl mesher does only support one domain (since in stl files there is no way afaik to specify multiple domains, it contains just the triangulation.
If the meshes do not overlap you can mesh the surfaces seperately and then merge the meshes, there is a tutorial here:
docu.ngsolve.org/latest/netgen_tutorials...ing_with_meshes.html
The following user(s) said Thank You: jiaxiangwang
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3 years 3 weeks ago #3619 by jiaxiangwang
Replied by jiaxiangwang on topic system error

File Attachment:

File Name: GrainFeature_2.stl
File Size:388 KB


I tried to mesh each stl file and merge them together. When I load the geometry of a single stl file (eg. I attached one), it show an error: ## (eg. 6184) wrong oriented neighbourtrangles found. It still show the same system error when I mesh this single stl file. Do you know what is the issue in here?

Thank you for answering my question
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