Typecasting (Including Single-Argument Constructors)

Vector(GeOb& a)

Used to downcast an arbitrary geometric object to a vector. Standard maps will be used to map the GeOb to a vector; this will succeed if the mapping succeeds.

Vector(MultiMap& m)
Vector(Map& m)
Vector(Scalar s)

See the descriptions given in Section for the GeOb
single-argument constructors.