def test_angle(self):
self.assertEqual(0.0, angle(QtCore.QPointF(0, 0),
QtCore.QPointF(+1, 0)))
self.assertEqual(+math.pi / 2,
angle(QtCore.QPointF(0, 0), QtCore.QPointF(0, -1)))
self.assertEqual(-math.pi / 2,
angle(QtCore.QPointF(0, 0), QtCore.QPointF(0, +1)))
self.assertEqual(math.pi,
angle(QtCore.QPointF(0, 0), QtCore.QPointF(-1, 0)))
self.assertEqual(+math.pi / 4,
angle(QtCore.QPointF(0, 0), QtCore.QPointF(1, -1)))
def updatePos(self, points):
"""
Update the current text position with respect to the shape.
:type points: T <= tuple | list
"""
if not points:
return
if self.isCentered():
# Here the label should be centered in the edge path.
# In this case we need to handle 2 different situations:
# 1. when the edge path is composed of an even number of points (odd subpaths)
# 2. when the edge path is composed of an odd number of points (even subpaths)
if len(points) % 2 == 0:
# If we have an even number of points, compute the position of the label
# according to the midpoint of the subpath connecting the middle points.
p1 = points[int(len(points) / 2) - 1]
p2 = points[int(len(points) / 2)]
mid = midpoint(p1, p2)
rad = angle(p1, p2)
spaceX = -40
spaceY = -16
self.setPos(
QtCore.QPointF(mid.x() + spaceX * sin(rad),
mid.y() + spaceY * cos(rad)))
else:
# If we have an odd number of points compute the position
# of the label according the point in the middle of the edge.
mid = points[int(len(points) / 2)]
rad1 = angle(points[int(len(points) / 2) - 1], mid)
rad2 = angle(mid, points[int(len(points) / 2) + 1])
diff = rad2 - rad1
spaceX1 = 0
spaceX2 = 0
spaceY = -16
if 0 < diff < M_PI:
spaceX1 = -80 * sin(rad1)
spaceX2 = -80 * sin(rad2)
spaceY += spaceY * sin(diff) * 1.8
self.setPos(
QtCore.QPointF(mid.x() + spaceX1 + spaceX2,
mid.y() + spaceY))
else:
# Here instead we will place the label near the intersection with
# the target shape: this is mostly used for input edges connecting
# role chain nodes and property assertion nodes, so we can inspect
# visually the partecipation order of connected nodes without having
# to scroll the diagram.
rad = angle(points[-2], points[-1])
pos = points[-1] - QtCore.QPointF(
sin(rad + M_PI / 3.0) * 20,
cos(rad + M_PI / 3.0) * 20)
self.setPos(pos)
def updatePos(self, points):
"""
Update the current text position with respect to the shape.
:type points: T <= tuple | list
"""
if not points:
return
if self.isCentered():
# Here the label should be centered in the edge path.
# In this case we need to handle 2 different situations:
# 1. when the edge path is composed of an even number of points (odd subpaths)
# 2. when the edge path is composed of an odd number of points (even subpaths)
if len(points) % 2 == 0:
# If we have an even number of points, compute the position of the label
# according to the midpoint of the subpath connecting the middle points.
p1 = points[int(len(points) / 2) - 1]
p2 = points[int(len(points) / 2)]
mid = midpoint(p1, p2)
rad = angle(p1, p2)
spaceX = -40
spaceY = -16
self.setPos(QtCore.QPointF(mid.x() + spaceX * sin(rad), mid.y() + spaceY * cos(rad)))
else:
# If we have an odd number of points compute the position
# of the label according the point in the middle of the edge.
mid = points[int(len(points) / 2)]
rad1 = angle(points[int(len(points) / 2) - 1], mid)
rad2 = angle(mid, points[int(len(points) / 2) + 1])
diff = rad2 - rad1
spaceX1 = 0
spaceX2 = 0
spaceY = -16
if 0 < diff < M_PI:
spaceX1 = -80 * sin(rad1)
spaceX2 = -80 * sin(rad2)
spaceY += spaceY * sin(diff) * 1.8
self.setPos(QtCore.QPointF(mid.x() + spaceX1 + spaceX2, mid.y() + spaceY))
else:
# Here instead we will place the label near the intersection with
# the target shape: this is mostly used for input edges connecting
# role chain nodes and property assertion nodes, so we can inspect
# visually the partecipation order of connected nodes without having
# to scroll the diagram.
rad = angle(points[-2], points[-1])
pos = points[-1] - QtCore.QPointF(sin(rad + M_PI / 3.0) * 20, cos(rad + M_PI / 3.0) * 20)
self.setPos(pos)
def test_angle(self):
self.assertEqual(0.0, angle(QtCore.QPointF(0, 0), QtCore.QPointF(+1, 0)))
self.assertEqual(+math.pi / 2, angle(QtCore.QPointF(0, 0), QtCore.QPointF(0, -1)))
self.assertEqual(-math.pi / 2, angle(QtCore.QPointF(0, 0), QtCore.QPointF(0, +1)))
self.assertEqual(math.pi, angle(QtCore.QPointF(0, 0), QtCore.QPointF(-1, 0)))
self.assertEqual(+math.pi / 4, angle(QtCore.QPointF(0, 0), QtCore.QPointF(1, -1)))
def test_angle():
assert 0.0 == angle(QtCore.QPointF(0, 0), QtCore.QPointF(+1, 0))
assert +math.pi / 2 == angle(QtCore.QPointF(0, 0), QtCore.QPointF(0, -1))
assert -math.pi / 2 == angle(QtCore.QPointF(0, 0), QtCore.QPointF(0, +1))
assert math.pi == angle(QtCore.QPointF(0, 0), QtCore.QPointF(-1, 0))
assert +math.pi / 4 == angle(QtCore.QPointF(0, 0), QtCore.QPointF(1, -1))
