A boolean is represented as a 0 or 1, with 0 being false and 1 being true.
A boundary is reference to either a database curve or the edge of a database surface.
A color is represented as a 32-bit hex value, 0x00RRBBGG.
A coord is a position in grid space.
A float is a fractional number.
An index is a list of integer values.
An integer is a whole number.
A plane is a list of four float values representing the geometric plane coefficients A, B, C and D.
A point is a position either in model space or database parameter space.
A register is the usage of a lower level entity in a higher level entity.
A string is an array of characters.
A type is the class name of a Glyph2 object.
A vector is a list of float values.