Description Usage Arguments Value Author(s)
"Signed area" of triangles on a plane
1 | tri.area.signed(P, Pt)
|
P |
3-column matrix of vertices of triangles |
Pt |
3-column matrix of indices of rows of |
Vectors of signed areas of triangles. Positive sign indicates points are anticlockwise direction; negative indicates clockwise.
David Sterratt
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