def __new__(cls, function, limits):
fun = sympify(function)
if not is_sequence(fun) or len(fun) != 2:
raise ValueError("Function argument should be (x(t), y(t)) but got %s" % str(function))
if not is_sequence(limits) or len(limits) != 3:
raise ValueError("Limit argument should be (t, tmin, tmax) but got %s" % str(limits))
return GeometryEntity.__new__(cls, tuple(sympify(fun)), tuple(sympify(limits)))
def __new__(cls, function, limits):
fun = sympify(function)
if not is_sequence(fun) or len(fun) != 2:
raise ValueError("Function argument should be (x(t), y(t)) "
"but got %s" % str(function))
if not is_sequence(limits) or len(limits) != 3:
raise ValueError("Limit argument should be (t, tmin, tmax) "
"but got %s" % str(limits))
return GeometryEntity.__new__(cls, Tuple(*fun), Tuple(*limits))
def __new__(cls, focus=None, directrix=None, **kwargs):
if focus:
focus = Point(focus, dim=2)
else:
focus = Point(0, 0)
directrix = Line(directrix)
if directrix.contains(focus):
raise ValueError('The focus must not be a point of directrix')
return GeometryEntity.__new__(cls, focus, directrix, **kwargs)
def __new__(cls, focus=None, directrix=None, **kwargs):
if focus:
focus = Point(focus, dim=2)
else:
focus = Point(0, 0)
directrix = Line(directrix)
if (directrix.slope != 0 and directrix.slope != S.Infinity):
raise NotImplementedError('The directrix must be a horizontal'
' or vertical line')
if directrix.contains(focus):
raise ValueError('The focus must not be a point of directrix')
return GeometryEntity.__new__(cls, focus, directrix, **kwargs)
def __new__(cls, focus=None, directrix=None, **kwargs):
if focus:
focus = Point(focus, dim=2)
else:
focus = Point(0, 0)
directrix = Line(directrix)
if (directrix.slope != 0 and directrix.slope != S.Infinity):
raise NotImplementedError('The directrix must be a horizontal'
' or vertical line')
if directrix.contains(focus):
raise ValueError('The focus must not be a point of directrix')
return GeometryEntity.__new__(cls, focus, directrix, **kwargs)
def __new__(cls, functions, parameter):
obj = GeometryEntity.__new__(cls, functions, parameter)
return obj
