def test_315(self):
""" Test for the closest point when the line is 90 degrees """
angle = 1.75*numpy.pi
line = Line(self.xa, self.length, angle)
pnt = Point(2, 1)
p = line.find_closest_point(pnt)
self.assertAlmostEqual(p.x, self.xa.x+0.5, 10)
self.assertAlmostEqual(p.y, self.xa.y-0.5, 10)
pnt = Point(1, 0)
p = line.find_closest_point(pnt)
self.assertAlmostEqual(p.x, self.xa.x+0.5, 10)
self.assertAlmostEqual(p.y, self.xa.y-0.5, 10)
pnt = Point(1, 2)
p = line.find_closest_point(pnt)
self.assertAlmostEqual(p.x, self.xa.x, 10)
self.assertAlmostEqual(p.y, self.xa.y, 10)
pnt = Point(3, 0)
p = line.find_closest_point(pnt)
self.assertAlmostEqual(p.x, line.xb.x, 10)
self.assertAlmostEqual(p.y, line.xb.y, 10)
def test_90(self):
""" Test for the closest point when the line is 90 degrees """
angle = 0.5*numpy.pi
line = Line(self.xa, self.length, angle)
pnt = Point(0, 1.5)
p = line.find_closest_point(pnt)
self.assertAlmostEqual(p.x, self.xa.x, 10)
self.assertAlmostEqual(p.y, self.xa.y+0.5, 10)
pnt = Point(0, 0)
p = line.find_closest_point(pnt)
self.assertAlmostEqual(p.x, self.xa.x, 10)
self.assertAlmostEqual(p.y, self.xa.y, 10)
pnt = Point(1.5, 1.5)
p = line.find_closest_point(pnt)
self.assertAlmostEqual(p.x, self.xa.x, 10)
self.assertAlmostEqual(p.y, self.xa.y+0.5, 10)
def test_zero(self):
""" Test when the angle is 0 """
angle = 0.0
line = Line(self.xa, self.length, angle)
pnt = Point(1, 2)
p = line.find_closest_point(pnt)
self.assertAlmostEqual(p.x, 1.0, 10)
self.assertAlmostEqual(p.y, 1.0, 10)
pnt = Point(2, 2)
p = line.find_closest_point(pnt)
self.assertAlmostEqual(p.x, 2.0, 10)
self.assertAlmostEqual(p.y, 1.0, 10)
pnt = Point(1.5, 2)
p = line.find_closest_point(pnt)
self.assertAlmostEqual(p.x, 1.5, 10)
self.assertAlmostEqual(p.y, 1.0, 10)
pnt = Point(2.5, 2)
p = line.find_closest_point(pnt)
self.assertAlmostEqual(p.x, line.xb.x, 10)
self.assertAlmostEqual(p.y, 1.0, 10)
pnt = Point(0.5, 2)
p = line.find_closest_point(pnt)
self.assertAlmostEqual(p.x, line.xa.x, 10)
self.assertAlmostEqual(p.y, 1.0, 10)
def test_45(self):
""" Test for the closest point when the line is at 45 degrees """
angle = 0.25*numpy.pi
line = Line(self.xa, self.length, angle)
pnt = Point(1, 2)
p = line.find_closest_point(pnt)
self.assertAlmostEqual(p.x, self.xa.x+0.5, 10)
self.assertAlmostEqual(p.y, self.xa.y+0.5, 10)
pnt = Point(0, 2)
p = line.find_closest_point(pnt)
self.assertAlmostEqual(p.x, self.xa.x, 10)
self.assertAlmostEqual(p.y, self.xa.y, 10)
pnt = Point(2, 0)
p = line.find_closest_point(pnt)
self.assertAlmostEqual(p.x, self.xa.x, 10)
self.assertAlmostEqual(p.y, self.xa.y, 10)
pnt = Point(2, 1)
p = line.find_closest_point(pnt)
self.assertAlmostEqual(p.x, self.xa.x+0.5, 10)
self.assertAlmostEqual(p.y, self.xa.y+0.5, 10)