search

luiswirth / formoniq

Arbitrary Dimension Finite Element Exterior Calculus in Rust
0 stars 0 forks source link

Orientation information #9

Open luiswirth opened 2 weeks ago

luiswirth commented 2 weeks ago

The mesh should provide more information about orientation of simplicies. For instance should we be able to query if we have an even or odd permutation of the vertices. And we should able to find out wheter the face of a simplex is oriented we say way as the parent.

luiswirth commented 2 weeks ago

I'm also wondering about if there is always just one correct orientation at the facet level (if ambient and intrinsic dimension align). Because in 2D a triangle should always be counterclockwise no? What are you trying to convey by being negatively oriented at the highest level. What does an upside down triangle mean?