def CZGate(c=P(0, 0), controlDist=1.0, direction="up", side=0.5):
"""
Controlled Z gate
@param controlDist: distance to the control
@type controlDist: float
@param direction: in which direction is the control? up/down
@type direction: string
@param side: length of the box side
@type side: float
"""
if direction is "up":
return Group(
Circle(c=c + P(0, controlDist), r=0.065, bg=Color("black")),
Path(c + P(0, side / 2.), c + P(0, controlDist)),
Rectangle(width=side, height=side, c=c, bg=Color("white")),
TeX(r'Z', c=c))
elif direction is "down":
return Group(
Circle(c=c - P(0, controlDist), r=0.65, bg=Color("black")),
Path(c - P(0, side / 2.), c - P(0, controlDist)),
Rectangle(width=side, height=side, c=c, bg=Color("white")),
TeX(r'Z', c=c))
def Rail(w=P(0, 0), length=1.0, labelIn=None, labelOut=None, buff=0.05):
"""
A Rail of a quantum circuit diagram
@param length: length of the rail
@type length: float
@param labelIn: input label
@type labelIn: string
@param labelOut: output label
@type labelOut: string
@param buff: buffer of space between the end of the rail and the label
@type buff: float
"""
if labelIn is not None and labelOut is not None:
return Group(Path(w + P(0, 0), w + P(length, 0)),
TeX(labelIn, e=w - P(buff, 0)),
TeX(labelOut, w=w + P(buff + length, 0)))
elif labelIn is not None and labelOut is None:
return Group(Path(w + P(0, 0), w + P(length, 0)),
TeX(labelIn, e=w - P(buff, 0)))
elif labelIn is None and labelOut is not None:
return Group(Path(w + P(0, 0), w + P(length, 0)),
TeX(labelOut, w=w + P(buff + length, 0)))
else:
return Group(Path(w + P(0, 0), w + P(length, 0)))
def ZGate(c=P(0, 0), side=0.5):
"""
Z gate
@param side: length of the box side
@type side: float
"""
return Group(Rectangle(width=side, height=side, c=c, bg=Color("white")),
TeX(r'Z', c=c))
def __init__(self, text, **options):
Group.__init__(self, **options)
# set up tex width ... this relies on latex notion of
# a point being accurate ... adjust for tex_scale too
width_pp = int(self.width / float(self.iscale) * defaults.units)
t = TeX(r'\begin{minipage}{%dpt}%s\end{minipage}' % (width_pp, text),
fg=self.fg,
iscale=self.iscale)
# use this for alignment as the latex bounding box may be smaller
# than the full width
a = Area(width=self.width, height=0)
Align(t, a, a1=self.align, a2=self.align, space=0)
self.append(a, t)
def __init__(self, tex, **options):
Gate.__init__(self, Circled(TeX(tex)), **options)