Number of nodes

x coordinates of the triangulation nodes

y coordinates of the triangulation nodes

number of triangles

Matrix of indices which defines the triangulation, each row corresponds to a triangle.

Columns i1, i2, i3 of the row i contain the node indices defining the ith triangle.

Columns j1, j2, j3 of the row i contain the indices of neighbour triangles (or 0 if no neighbour available along the convex hull).

Columns k1, k2, k3 of the row i contain the indices of the arcs of the ith triangle as returned by the arcs function.

Matrix describing the circumcircles and triangles.

Columns x and y contain coordinates of the circumcircle centers, r is the circumcircle radius.

area is the triangle area and ratio is the ratio of the radius of the inscribed circle to the circumcircle radius. It takes it maximum value 0.5 for an equilateral triangle.

The radius of the inscribed circle can be get via r_i=\frac{r}{ratio}.

number of points on the convex hull

A vector containing the indices of nodes forming the convec hull (in counterclockwise ordering).

number of arcs forming the triangulation

A matrix with node indices describing the arcs, contains two columns from and to.

call, which generated this object