Node:Rectangle Reference, Next:Regular Closed Plane Curve Reference, Previous:Regular Polygon Reference, Up:Top

Class `Rectangle`

is defined in `rectangs.web`

, and
is derived from `Polygon`

, using public derivation.

As noted above in Polygon Reference; Affine Transformations, `class Rectangle`

,
like `class Reg_Polygon`

,
currently inherits its transformation functions and
`operator*=(const Transform&)`

from `Polygon`

. Consequently,
the data members of a `Rectangle`

, except for `center`

, are
not recalculated when it's transformed. I plan to change this soon! It
will also be necessary to add the function
`Rectangle::is_rectangular()`

, in order to test whether a
`Rectangle`

is still rectangular.