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Orientation of Face Variable Macros

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Old   February 17, 2006, 01:12
Default Orientation of Face Variable Macros
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In writing an UDF I came across a problem with face variable macros and if you don't mind I'd like to pick on someone's brain.

Given a cell face in a thread, I hear macros F_CO(f,t) and F_C1(f,t) [naturally F_CO_THREAD(f,t) and F_C1_THREAD(f,t) also] assigns c0 and c1 according to the "right-hand" rule. I'd like to utilize these macros but how exactly the direction of c0 and c1 decided?

I appreciate if someone can help me out on this. Thanks!


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