Daniel,
You had asked how one line would intersect another. So i made a simple
drawing, which i've attached here.
Here, we need to get the closest non-crossing edge for vertex V. And when
we are considering edge E1, the perpendicular line from V to E intersects
the edges of triangles 1, 2, and 3. So, we get triangle 3, from it we move
to triangle 2. And finally at triangle 1, the vertex is a corner. Hence, we
can mark this edge as ineligible.
When we are considering E2, since an ortho projection is not possible, we
get the feature pair to be a vertex- V1. The triangle 4 does not contain
the vertex V, hence it is eligible to be the closest edge.
Regards,
Rakshika.
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