- added points to form a \emph{bounding box} and the corresponding
- triangulation. By default, these triangles are removed at the end of
+ points added to form the \emph{bounding box}\footnote{The bounding
+ box is defined by four points place at 15\% around the box
+ defined by $(x_{\min},y_{\min})$, $(x_{\min},y_{\max})$,
+ $(x_{\max},y_{\max})$, and $(x_{\min},y_{\max})$. It is used by
+ the algorithm and will be computed in any case.} and the
+ triangles attached. By default, these triangles are removed at the end of