retistruct (version 0.5.9)

tri.area.signed: "Signed area" of triangles on a plane

Description

"Signed area" of triangles on a plane

Usage

tri.area.signed(P, Pt)

Arguments

P

2-column matrix of vertices of triangles

Pt

3-column matrix of indicies of rows of P giving triangulation

Value

• Vectors of signed areas of triangles. Positive sign indicates points are anticlockwise direction; negative indicates clockwise.