are this
and this
the same shape (cubinder I believe) from different angles or rotation?
or is the second one made of 4 cubinders connected like lines to a square?
another question that i think i already know the answer to but just to make sure...
a line segment is to a circle what a cylinder is to a duocylinder? you get a sphere from a polygon with infinite sides/line-segments. you get a douprism from a prismic sides/cylinder with infinent cylinders.