WRAPPER_API HorizontalDatum()
WRAPPER_API HorizontalDatum(const HorizontalDatum &source)
The HorizontalDatum constructor creates a new instance of the HorizontalDatum class. The first constructor is the default constructor, which takes no arguments and produces an Ellipsoid where the initial value of the Ellipsoid property is an Ellipsoid with a 1-meter SemiMajor radius, and the initial value of the PrimeMeridian property is the Greenwich Meridian. The second constructor is a copy-constructor, which produces a HorizontalDatum with the same value as the HorizontalDatum passed as argument.
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