class TwoDShape(Thing):
def __init__(self):
super(TwoDShape, self).__init__()
self.perimeter = Disp(u='units')
self.area = Area()
def __str__(self):
s = self.ul_label()
s += '{:>9} = {}\n'.format('Area', self.area_)
s += '{:>9} = {}'.format('Perimeter', self.perimeter.to_scalar())
return s
@property
def area_(self):
return self.area
@area_.setter
def area_(self, fl):
self.area = Area(fl)
@property
def perim(self):
return self.perimeter
@perim.setter
def perim(self, fl):
self.perimeter = Disp(fl)
def perim(self, fl):
self.perimeter = Disp(fl)
def __init__(self):
super(TwoDShape, self).__init__()
self.perimeter = Disp(u='units')
self.area = Area()