Find out the size (area) of a face
I would like to calculate the size of a face or find some routine which will return this information.
I am working with the DSMC solver. The basic lagrangian particle class is able to return the face label the particle I am looking at is in:
Although, I am quite confused, there are 3:
The first two are described the same:
Return current tet face particle is in
The third one is described like this:
Return current face particle is on otherwise -1
Question: Whats the difference between a tet face and a face? Whats a tet? Whats a tri? They are talking about that in the code all the time, but i'm not familiar with that terms ...
Can anybody help me out with a simple routine of how to calculate the area of a face?
Thank you so much in advance,
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