# Repository: https://gitlab.com/quantify-os/quantify-scheduler
# Licensed according to the LICENCE file on the main branch
"""
Module containing functions for drawing pulse schemes and circuit diagrams
using matplotlib.
"""
# pylint: disable=too-many-arguments
from __future__ import annotations
import logging
from typing import List, Optional, Tuple, Union
import matplotlib.patches
import matplotlib.pyplot as plt
import numpy as np
from matplotlib.axes import Axes
# For type hints, import modules to avoid circular dependencies
from matplotlib.figure import Figure
from quantify_scheduler.schedules._visualization import constants
[docs]
logger = logging.getLogger(__name__)
[docs]
def new_pulse_fig(
figsize: Optional[Tuple[int, int]] = None, ax: Optional[Axes] = None
) -> Tuple[Figure, Union[Axes, List[Axes]]]:
"""
Open a new figure and configure it to plot pulse schemes.
Parameters
----------
figsize :
Size of the figure.
ax
Axis to use for plotting. If ``None``, then creates a new one.
Returns
-------
:
Tuple of figure handle and axis handle.
"""
if ax is None:
fig, ax = plt.subplots(1, 1, figsize=figsize, frameon=False)
else:
fig = None
ax.get_xaxis().set_visible(False)
ax.get_yaxis().set_ticklabels([])
ax.spines["top"].set_visible(False)
ax.spines["right"].set_visible(False)
ax.spines["bottom"].set_visible(False)
ax.spines["left"].set_visible(False)
if fig is not None:
fig.patch.set_alpha(0)
ax.axhline(0, color="0.75")
return fig, ax
[docs]
def new_pulse_subplot(fig: Figure, *args, **kwargs) -> Axes:
"""
Add a new subplot configured for plotting pulse schemes to a figure.
All `*args` and `**kwargs` are passed to fig.add_subplot.
Parameters
----------
fig :
Figure to add the subplot to.
*args
Positional arguments to pass to fig.add_subplot.
**kwargs
Keyword arguments to pass to fig.add_subplot.
Returns
-------
:
"""
ax = fig.add_subplot(*args, **kwargs)
ax.axis("off")
fig.subplots_adjust(bottom=0, top=1, left=0, right=1)
ax.axhline(0, color="0.75")
return ax
[docs]
def mwPulse(
ax: Axes,
pos: float,
y_offs: float = 0.0,
width: float = 1.5,
amp: float = 1,
label: Optional[str] = None,
phase=0,
label_height: float = 1.3,
color: str = constants.COLOR_ORANGE,
modulation: str = "normal",
**plot_kws,
) -> float:
"""
Draw a microwave pulse: Gaussian envelope with modulation.
Parameters
----------
ax :
Axis to plot on.
pos :
Position of the pulse.
y_offs :
Vertical offset of the pulse.
width :
Width of the pulse.
amp :
Amplitude
label :
Label to add to the pulse.
label_height :
Height of the label.
color :
Color of the pulse.
modulation :
Modulation
Returns
-------
:
"""
x = np.linspace(pos, pos + width, 100)
envPos = amp * np.exp(-((x - (pos + width / 2)) ** 2) / (width / 4) ** 2)
envNeg = -amp * np.exp(-((x - (pos + width / 2)) ** 2) / (width / 4) ** 2)
if modulation == "normal":
mod = envPos * np.sin(2 * np.pi * 3 / width * x + phase)
elif modulation == "high":
mod = envPos * np.sin(5 * np.pi * 3 / width * x + phase)
else:
raise ValueError()
ax.plot(x, envPos + y_offs, "--", color=color, **plot_kws)
ax.plot(x, envNeg + y_offs, "--", color=color, **plot_kws)
ax.plot(x, mod + y_offs, "-", color=color, **plot_kws)
if label is not None:
ax.text(
pos + width / 2,
label_height,
label,
horizontalalignment="right",
color=color,
).set_clip_on(True)
return pos + width
[docs]
def fluxPulse(
ax: Axes,
pos: float,
y_offs: float = 0.0,
width: float = 2.5,
s: float = 0.1,
amp: float = 1.5,
label: Optional[str] = None,
label_height: float = 1.7,
color: str = constants.COLOR_ORANGE,
**plot_kws,
) -> float:
"""
Draw a smooth flux pulse, where the rising and falling edges are given by
Fermi-Dirac functions.
Parameters
----------
ax :
Axis to plot on.
pos :
Position of the pulse.
y_offs :
Vertical offset of the pulse.
width :
Width of the pulse.
s :
smoothness of edge
amp :
Amplitude
label :
Label to add to the pulse.
label_height :
Height of the label.
color :
Color of the pulse.
Returns
-------
:
"""
x = np.linspace(pos, pos + width, 100)
y = amp / (
(np.exp(-(x - (pos + 5.5 * s)) / s) + 1)
* (np.exp((x - (pos + width - 5.5 * s)) / s) + 1)
)
ax.fill_between(x, y + y_offs, y_offs, color=color, alpha=0.3)
ax.plot(x, y + y_offs, color=color, **plot_kws)
if label is not None:
ax.text(
pos + width / 2,
label_height,
label,
horizontalalignment="center",
color=color,
).set_clip_on(True)
return pos + width
[docs]
def ramZPulse(
ax: Axes,
pos: float,
y_offs: float = 0.0,
width: float = 2.5,
s: float = 0.1,
amp: float = 1.5,
sep: float = 1.5,
color: str = constants.COLOR_ORANGE,
) -> float:
"""
Draw a Ram-Z flux pulse, i.e. only part of the pulse is shaded, to indicate
cutting off the pulse at some time.
Parameters
----------
ax :
Axis to plot on.
pos :
Position of the pulse.
y_offs :
Vertical offset of the pulse.
width :
Width of the pulse.
s :
smoothness of edge
amp :
Amplitude
sep :
Separation between pulses.
color :
Color of the pulse.
Returns
-------
:
"""
xLeft = np.linspace(pos, pos + sep, 100)
xRight = np.linspace(pos + sep, pos + width, 100)
xFull = np.concatenate((xLeft, xRight))
y = amp / (
(np.exp(-(xFull - (pos + 5.5 * s)) / s) + 1)
* (np.exp((xFull - (pos + width - 5.5 * s)) / s) + 1)
)
yLeft = y[: len(xLeft)]
ax.fill_between(
xLeft, yLeft + y_offs, y_offs, alpha=0.3, color=color, linewidth=0.0
)
ax.plot(xFull, y + y_offs, color=color)
return pos + width
[docs]
def interval(
ax: Axes,
start: float,
stop: float,
y_offs: float = 0.0,
height: float = 1.5,
label: Optional[str] = None,
label_height: Optional[str] = None,
vlines: bool = True,
color: str = "k",
arrowstyle: str = "<|-|>",
**plot_kws,
) -> None:
"""
Draw an arrow to indicate an interval.
Parameters
----------
ax :
Axis to plot on.
pos :
Position of the pulse.
y_offs :
Vertical offset of the pulse.
width :
Width of the pulse.
s :
smoothness of edge
amp :
Amplitude
sep :
Separation between pulses.
color :
Color of the pulse.
arrow_style :
Returns
-------
:
"""
if label_height is None:
label_height = height + 0.2
arrow = matplotlib.patches.FancyArrowPatch(
posA=(start, height + y_offs),
posB=(stop, height + y_offs),
arrowstyle=arrowstyle,
color=color,
mutation_scale=7,
**plot_kws,
)
ax.add_patch(arrow)
if vlines:
ax.plot(
[start, start], [0 + y_offs, height + y_offs], "--", color=color, **plot_kws
)
ax.plot(
[stop, stop], [0 + y_offs, height + y_offs], "--", color=color, **plot_kws
)
if label is not None:
ax.text(
(start + stop) / 2, label_height + y_offs, label, color=color, ha="center"
).set_clip_on(True)
[docs]
def meter(
ax: Axes,
x0: float,
y0: float,
y_offs: float = 0.0,
width: float = 1.1,
height: float = 0.8,
color: str = "black",
framewidth: float = 0.0,
fillcolor: Optional[str] = None,
) -> None:
"""
Draws a measurement meter on the specified position.
Parameters
----------
ax :
x0 :
y0 :
y_offs :
width :
height :
color :
framewidth:
fillcolor :
Returns
-------
:
"""
if fillcolor is None:
fill = False
else:
fill = True
p1 = matplotlib.patches.Rectangle(
(x0 - width / 2, y0 - height / 2 + y_offs),
width,
height,
facecolor=fillcolor,
edgecolor=color,
fill=fill,
zorder=5,
linewidth=framewidth,
)
ax.add_patch(p1)
p0 = matplotlib.patches.Wedge(
(x0, y0 - height / constants.METER_WEDGE_HEIGHT_SCALING + y_offs),
constants.METER_WEDGE_RADIUS,
theta1=constants.METER_WEDGE_ANGLE,
theta2=180 - constants.METER_WEDGE_ANGLE,
color=color,
lw=1.5,
width=0.01,
zorder=5,
)
ax.add_patch(p0)
arrow_len = height / 2.0
ax.arrow(
x0,
y0 - height / constants.METER_ARROW_HEIGHT_SCALING + y_offs,
dx=arrow_len * np.cos(np.deg2rad(constants.METER_ARROW_ANGLE)),
dy=arrow_len * np.sin(np.deg2rad(constants.METER_ARROW_ANGLE)),
width=0.025,
color=color,
zorder=5,
)
[docs]
def box_text(
ax: Axes,
x0: float,
y0: float,
text: str = "",
width: float = 1.1,
height: float = 0.8,
color: str = "black",
fillcolor: Optional[str] = None,
textcolor: str = "black",
fontsize: Optional[int] = None,
) -> None:
"""
Draws a box filled with text at the specified position.
Parameters
----------
ax :
x0 :
y0 :
text :
width :
height :
color :
fillcolor :
textcolor :
fontsize :
Returns
-------
:
"""
if fillcolor is None:
fill = False
else:
fill = True
p1 = matplotlib.patches.Rectangle(
(x0 - width / 2, y0 - height / 2),
width,
height,
facecolor=fillcolor,
edgecolor=color,
fill=fill,
linewidth=0,
zorder=5,
)
ax.add_patch(p1)
ax.text(
x0,
y0,
text,
ha="center",
va="center",
zorder=6,
size=fontsize,
color=textcolor,
).set_clip_on(True)
