class ALine(object):
"""3D Line work with APoint and support in draw in `AutoCAD`
Usage::
>>> l1 = ALine([10, 10], [20, 20])
Aline(APoint(10.00, 10.00, 0.00), APoint(20.00, 20.00, 0.00))
"""
def __init__(self, start_point, end_point):
if isinstance(start_point, APoint):
self.start = start_point
else:
self.start = APoint(*start_point)
if isinstance(end_point, APoint):
self.end = end_point
else:
self.end = APoint(*end_point)
@property
def length(self):
"""The length of 3D line"""
return self.start.distance_to(self.end)
@property
def middle(self):
"""The middle point of 3D line"""
return APoint((self.start.x + self.end.x) / 2, (self.start.y + self.end.y) / 2, (self.start.z + self.end.z) / 2)
@staticmethod
def create_from_vector(v, pnt):
"""
"""
if v is None or not isinstance(v, Vector) or pnt is None:
return None
v = v.normalized()
# TODO: Change into APoint + Vector
return ALine(pnt, pnt + v)
def __str__(self):
return 'Aline(%s, %s)' % (self.start, self.end)
def __eq__(self, v):
return isinstance(v, ALine) and self.start == v.start and self.end == v.end
def test_distance(self):
p1 = APoint(10, 10, 10)
p2 = APoint(15, 15, 15)
self.assertAlmostEqual(p1.distance_to(p2), 8.660254037844387)
self.assertEqual(distance(p1, p2), distance(p2, p1))
def test_distance(self):
p1 = APoint(10, 10, 10)
p2 = APoint(15, 15, 15)
self.assertAlmostEqual(p1.distance_to(p2), 8.660254037844387)
self.assertEqual(distance(p1, p2), distance(p2, p1))