def eval(self, t=0):
""" Finds the point on the line segment defined by the input parameter.
:math:`t=0` returns the origin (1st) point, defined by the input argument ``point1`` and :math:`t=1` returns
the end (2nd) point, defined by the input argument ``point2``.
:param t: parameter
:type t: float
:return: point at the parameter value
:rtype: tuple
"""
return utilities.point_translate(self.p,
utilities.vector_multiply(self.d, t))
def test_point_translate3():
with pytest.raises(TypeError):
utilities.point_translate(5, 9.7)
def test_point_translate2():
pt = (1, 0, 0)
vec = (5, 5, 5)
result = (6, 5, 5)
to_check = utilities.point_translate(pt, vec)
assert to_check == result
def test_point_translate1():
with pytest.raises(ValueError):
pt1 = ()
pt2 = (1, 2, 3)
utilities.point_translate(pt1, pt2)
