An algorithm for constructing some maximal arcs in PG(2,q^2)

In 1974, J. Thas constructed a new class of maximal arcs for the
Desarguesian plane of order $q^2$. The construction relied upon the
existence of a regular spread of tangent lines to an ovoid in
$\PG(3,q)$ and, in particular, it does apply to the Suzuki--Tits
ovoid. In this paper, we describe an algorithm for obtaining a
possible representation of such arcs in $\PG(2,q^2)$.