Represents a point in two-dimensional space. When first created
the object defaults to the origin "0 0" which is at the bottom left
of the space.
ABCpdf uses the standard Adobe PDF coordinate space. The origin
of this space is at the bottom left of the document. Distances are
measured up and right in points. Points are a traditional measure
for print work and there are 72 points in an inch. For further
details see the Coordinates section
of the documentation.
Implements: IDisposable, IEquatable<XPoint>,