def __init__(self, name, corners):
assert isinstance(corners, list), \
"Face must be created by a list of objects of type geo.Pos."
for corner in corners:
assert isinstance(corner, geo.Pos), \
"Face must be created by a list of objects of type geo.Pos."
Drawable.__init__(self, name, geo.centre_of_gravity(corners))
self.corners = corners
self.has_opacity = False
self.opacity = None
def __init__(self, name, corners):
assert isinstance(corners, list), \
"Face must be created by a list of objects of type geo.Pos."
for corner in corners:
assert isinstance(corner, geo.Pos), \
"Face must be created by a list of objects of type geo.Pos."
Drawable.__init__(self, name, geo.centre_of_gravity(corners))
self.corners = corners
self.has_opacity = False
self.opacity = None
def __init__(self, name, start, target):
assert isinstance(start, geo.Pos), \
"The start position of an object of type Bond " \
"must be of type geo.Position."
assert isinstance(target, geo.Pos), \
"The target position of an object of type Bond " \
"must be of type geo.Position."
Drawable.__init__(self, name, geo.centre_of_gravity([start, target]))
self.start = start
self.target = target
self.has_thickness = False
self.thickness = None
def __init__(self, name, start, target):
assert isinstance(start, geo.Pos), \
"The start position of an object of type Bond " \
"must be of type geo.Position."
assert isinstance(target, geo.Pos), \
"The target position of an object of type Bond " \
"must be of type geo.Position."
Drawable.__init__(self, name, geo.centre_of_gravity([start, target]))
self.start = start
self.target = target
self.has_thickness = False
self.thickness = None
def test_centre_of_gravity():
p1 = geo.Pos(nb.Matrix([[1], [0], [0], [1]]))
p2 = geo.Pos(nb.Matrix([[3], [0], [0], [1]]))
assert geo.centre_of_gravity([p1, p2]) == geo.Pos(nb.Matrix([[2], [0], [0], [1]]))