  The superconformal central charge is an important quantity for theories
emerging from string theory geometrical implementation of Quantum Field Theory
since it is linked, for example, to the scaling dimension of fields. Butti and
Zaffaroni construction of the central charge for toric Calabi-Yau threefold
geometries is a powerful tool but its implementation could be quite tricky.
Here we present an equivalent new construction based on a 2-simplexes
decomposition of the toric diagram.
