Geometry is the name of the library, but in GC, one doesn't have to write the library name Geometry. When creating a new type:

Fine

	DPoint3d ptD3d = new DPoint3d()

Not Necessary

	Geometry.DPoint3d ptD3d = new Geometry.DPoint3d()

The DGeometry library uses value types so it is actually not necessary to use the new keyword when initializing a new instance of a type:

	DPoint3d ptD3d;

Is the equivalent of:

	DPoint3d ptD3d = new DPoint3d()

th initialise a new DPoint3d(x=0, y=0, z=0)