Node:Regular Polygon Data Members, Next:Regular Polygon Constructors and Setting Functions, Previous:Regular Polygon Reference, Up:Regular Polygon Reference
real internal_angle  Private variable 
The angle at the center of the Reg_Polygon of the triangle formed
by the center and two adjacent corners.
If n is the number of sides of a Reg_Polygon ,
internal_angle will be 360.0/n, so internal_angle
will be 120 for a regular triangle, 90 for a square, 72 for a pentagon,
etc.

real radius  Private variable 
The radius of the surrounding circle for a Reg_Polygon (Umkreis).

unsigned short sides  Private variable 
The number of sides of a Reg_Polygon .

bool on_free_store  Private variable 
true , if the Reg_Polygon was dynamically allocated on the
free store, otherwise false . Dynamic allocation of
Reg_Polygons should only be
performed by create_new<Reg_Polygon>() , which sets
on_free_store to true .
