def get_axes_extent(ax: Axes, ax_crs: CRS, crs: CRS=SphericalEarth):
""" Get the extent of an Axes in geographical (or other) coordinates. """
xl, xr = ax.get_xlim()
yb, yt = ax.get_ylim()
ll = ax_crs.transform(crs, xl, yb)
lr = ax_crs.transform(crs, xr, yb)
ur = ax_crs.transform(crs, xr, yt)
ul = ax_crs.transform(crs, xl, yt)
return Polygon([ll, lr, ur, ul], crs=crs)
def plot2axes(self, axes: plt.Axes, width: NumberLike=1, color: str='w'):
"""Plot the line to an axes.
Parameters
----------
axes : matplotlib.axes.Axes
An MPL axes to plot to.
color : str
The color of the line.
"""
axes.plot((self.point1.x, self.point2.x), (self.point1.y, self.point2.y), linewidth=width, color=color)
def _plot_flatness(self, direction: str, axis: plt.Axes=None):
plt.ioff()
if axis is None:
fig, axis = plt.subplots()
data = self.flatness[direction.lower()]
axis.set_title(direction.capitalize() + " Flatness")
axis.plot(data['profile'].values)
_remove_ticklabels(axis)
axis.axhline(data['profile max'], color='r')
axis.axhline(data['profile min'], color='r')
axis.axvline(data['profile left'], color='g', linestyle='-.')
axis.axvline(data['profile right'], color='g', linestyle='-.')
def show_spiral(data):
from matplotlib.pyplot import imshow,show,figure,Axes,set_cmap
#this is to remove plat axes
fig = figure()
fig.set_size_inches(6, 6)
ax = Axes(fig, [0., 0., 1., 1.])
ax.set_axis_off()
fig.add_axes(ax)
set_cmap('binary')
#display plot
ax.imshow(data, interpolation='nearest')
show()
def show_Ulam_spiral(Ulam_data):
"""
Plots the Ulam spiral and saves it. Depends on matplotlib.pyplot
"""
from matplotlib.pyplot import set_cmap,savefig,figure,Axes,show
fig = figure()
fig.set_size_inches(6, 6)
ax = Axes(fig, [0., 0., 1., 1.])
ax.set_axis_off()
fig.add_axes(ax)
set_cmap('jet')
ax.imshow(Ulam_data, interpolation='nearest')
show()
def plot_polygon(geom: Union[Polygon, Iterable[Polygon]], *args,
ax: Axes=None, crs: CRS=None, **kwargs):
""" Plot a Polygon geometry, projected to the coordinate system `crs` """
kwargs.setdefault("facecolor", "none")
kwargs.setdefault("edgecolor", "black")
x, y = geom.get_coordinate_lists(crs=crs)
return ax.fill(x, y, *args, **kwargs)
def plot_multipoint(geom: Union[Multipoint, Iterable[Multipoint]], *args,
ax: Axes=None, crs: CRS=None, **kwargs):
""" Plot a Line geometry, projected to the coordinate system `crs` """
kwargs.setdefault("linestyle", "none")
kwargs.setdefault("marker", ".")
x, y = geom.get_coordinate_lists(crs=crs)
return ax.plot(x, y, *args, **kwargs)
def _plot_image(self, axis: plt.Axes=None, title: str=''):
plt.ioff()
if axis is None:
fig, axis = plt.subplots()
axis.imshow(self.array, cmap=get_dicom_cmap())
axis.axhline(self.positions['vertical']*self.array.shape[0], color='r') # y
axis.axvline(self.positions['horizontal']*self.array.shape[1], color='r') # x
_remove_ticklabels(axis)
axis.set_title(title)
def plot_multiline(geom: Union[Multiline, Iterable[Multiline]], *args,
ax: Axes=None, crs: CRS=None, **kwargs):
""" Plot a Line geometry, projected to the coordinate system `crs` """
out = []
for line in geom:
x, y = line.get_coordinate_lists(crs=crs)
out.append(ax.plot(x, y, *args, **kwargs))
return out
def plot_multipolygon(geom: Union[Multipolygon, Iterable[Multipolygon]], *args,
ax: Axes=None, crs: CRS=None, **kwargs):
""" Plot a Line geometry, projected to the coordinate system `crs` """
kwargs.setdefault("facecolor", "none")
kwargs.setdefault("edgecolor", "black")
out = []
for polygon in geom:
x, y = polygon.get_coordinate_lists(crs=crs)
out.append(ax.fill(x, y, *args, **kwargs))
return out
def plot2axes(self, axes: plt.Axes=None, edgecolor: str='black', fill: bool=False, plot_peaks: bool=True):
"""Add 2 circles to the axes: one at the maximum and minimum radius of the ROI.
See Also
--------
:meth:`~pylinac.core.profile.CircleProfile.plot2axes` : Further parameter info.
"""
if axes is None:
fig, axes = plt.subplots()
axes.imshow(self.image_array)
axes.add_patch(mpl_Circle((self.center.x, self.center.y), edgecolor=edgecolor, radius=self.radius*(1+self.width_ratio),
fill=fill))
axes.add_patch(mpl_Circle((self.center.x, self.center.y), edgecolor=edgecolor, radius=self.radius*(1-self.width_ratio),
fill=fill))
if plot_peaks:
x_locs = [peak.x for peak in self.peaks]
y_locs = [peak.y for peak in self.peaks]
axes.autoscale(enable=False)
axes.scatter(x_locs, y_locs, s=20, marker='x', c=edgecolor)
def plot(self, ax: plt.Axes=None, show: bool=True, clear_fig: bool=False, **kwargs):
"""Plot the image.
Parameters
----------
ax : matplotlib.Axes instance
The axis to plot the image to. If None, creates a new figure.
show : bool
Whether to actually show the image. Set to false when plotting multiple items.
clear_fig : bool
Whether to clear the prior items on the figure before plotting.
"""
if ax is None:
fig, ax = plt.subplots()
if clear_fig:
plt.clf()
ax.imshow(self.array, cmap=get_dicom_cmap(), **kwargs)
if show:
plt.show()
return ax
def plot_grid(grid: RegularGrid, ax: Axes=None, crs: CRS=None, band: Union[int, tuple]=-1, **kwargs):
""" Plot a grid instance
Parameters
----------
grid : RegularGrid
raster data to plot
ax : Axes, optional
Axes to plot to [default plt.gca()]
crs : CRS, optional
Currently not supported
band : int or tuple, optional
Band(s) to plot. If *grid* has three bands, by default the three are
plotted in false colour as RGB channels. Otherwise, the first band is
plotted by default. If *band* is a tuple, it must have three integer
elements.
Notes
-----
Additional arguments are passed to `matplotlib.pyplot.imshow`
"""
kwargs.setdefault("origin", "bottom")
kwargs.setdefault("extent", grid.get_extent(crs=crs))
kwargs.setdefault("cmap", cm.binary_r)
if crs is not None and crs != grid.crs:
raise NotImplementedError("RegularGrid reprojection not supported")
# compute the pixels that can actually be displayed
# be slightly generous by using a factor of 0.75 to avoid choosing too low
# of a resolution
_, _, width, height = ax.bbox.bounds
ny, nx = grid.size
r = (max(int(0.75*ny//height), 1), max(int(0.75*nx//width), 1))
if band == -1:
if len(grid.bands) == 3 and (band == -1):
band = (0, 1, 2)
else:
band = 0
if isinstance(band, int):
arr = grid[::r[0],::r[1],band]
arr = np.ma.masked_equal(arr, grid.nodata)
else:
if len(band) not in (3, 4):
raise ValueError("bands must be RGB or RGBA (length 3 or 4)")
arr = np.dstack([grid[::r[0],::r[1],i] for i in band]).astype(np.float32)
arr = np.ma.masked_equal(arr, grid.nodata)
arr[:,:,:3] /= arr[:,:,:3].max()
im = ax.imshow(arr, **kwargs)
if ax == gca():
sci(im)
return im
def get_axes_limits(ax: Axes, ax_crs: CRS, crs: CRS=SphericalEarth):
""" Get the limits of the window covered by an Axes in another coordinate
system. """
xl, xr = ax.get_xlim()
yb, yt = ax.get_ylim()
# Minimize bottom spine
x_ = scipy.optimize.fminbound(lambda x: ax_crs.transform(crs, x, yb)[1], xl, xr)
ymin = ax_crs.transform(crs, x_, yb)[1]
# Maximize top spine
x_ = scipy.optimize.fminbound(lambda x: -ax_crs.transform(crs, x, yt)[1], xl, xr)
ymax = ax_crs.transform(crs, x_, yt)[1]
# Minimize left spine
y_ = scipy.optimize.fminbound(lambda y: ax_crs.transform(crs, xl, y)[0], yb, yt)
xmin = ax_crs.transform(crs, xl, y_)[0]
# Maximize right spine
y_ = scipy.optimize.fminbound(lambda y: -ax_crs.transform(crs, xr, y)[0], yb, yt)
xmax = ax_crs.transform(crs, xr, y_)[0]
return xmin, xmax, ymin, ymax
def _plot_analyzed_subimage(self, subimage: str, show: bool=True, ax: plt.Axes=None):
"""Plot an individual piece of the VMAT analysis.
Parameters
----------
subimage : str
Specifies which image to plot.
show : bool
Whether to actually plot the image.
ax : matplotlib Axes, None
If None (default), creates a new figure to plot to, otherwise plots to the given axes.
"""
plt.ioff()
if ax is None:
fig, ax = plt.subplots()
# plot DMLC or OPEN image
if subimage in (DMLC, OPEN):
if subimage == DMLC:
img = self.dmlc_image
elif subimage == OPEN:
img = self.open_image
ax.imshow(img, cmap=get_dicom_cmap())
self._draw_segments(ax)
plt.sca(ax)
plt.axis('off')
plt.tight_layout()
# plot profile
elif subimage == PROFILE:
dmlc_prof, open_prof = self._median_profiles((self.dmlc_image, self.open_image))
ax.plot(dmlc_prof.values, label='DMLC')
ax.plot(open_prof.values, label='Open')
ax.autoscale(axis='x', tight=True)
ax.legend(loc=8, fontsize='large')
ax.grid()
if show:
plt.show()
def add_guards_to_axes(self, axis: plt.Axes, color: str='g'):
"""Plot guard rails to the axis."""
if self.settings.orientation == UP_DOWN:
length = self.image.shape[0]
else:
length = self.image.shape[1]
x_data = np.arange(length)
left_y_data = self.left_guard(x_data)
right_y_data = self.right_guard(x_data)
if self.settings.orientation == UP_DOWN:
axis.plot(left_y_data, x_data, color=color)
axis.plot(right_y_data, x_data, color=color)
else:
axis.plot(x_data, left_y_data, color=color)
axis.plot(x_data, right_y_data, color=color)
def plot_axis_images(self, axis: str=GANTRY, show: bool=True, ax: plt.Axes=None):
"""Plot all CAX/BB/EPID positions for the images of a given axis.
For example, axis='Couch' plots a reference image, and all the BB points of the other
images where the couch was moving.
Parameters
----------
axis : {'Gantry', 'Collimator', 'Couch', 'Combo'}
The images/markers from which accelerator axis to plot.
show : bool
Whether to actually show the images.
ax : None, matplotlib.Axes
The axis to plot to. If None, creates a new plot.
"""
images = [image for image in self.images if image.variable_axis in (axis, REFERENCE)]
ax = images[0].plot(show=False, ax=ax) # plots the first marker; plot the rest of the markers below
if axis != COUCH:
# plot EPID
epid_xs = [img.epid.x for img in images[1:]]
epid_ys = [img.epid.y for img in images[1:]]
ax.plot(epid_xs, epid_ys, 'b+', ms=8)
# get CAX positions
xs = [img.field_cax.x for img in images[1:]]
ys = [img.field_cax.y for img in images[1:]]
marker = 'gs'
else:
# get BB positions
xs = [img.bb.x for img in images[1:]]
ys = [img.bb.y for img in images[1:]]
marker = 'ro'
ax.plot(xs, ys, marker, ms=8)
# set labels
ax.set_title(axis + ' wobble')
ax.set_xlabel(axis + ' positions superimposed')
ax.set_ylabel(axis + f" iso size: {getattr(self, axis.lower() + '_iso_size'):3.2f}mm")
if show:
plt.show()
def plot2axes(self, axes: plt.Axes, edgecolor: str='black', angle: float=0.0, fill: bool=False,
alpha: float=1, facecolor: str='g'):
"""Plot the Rectangle to the axes.
Parameters
----------
axes : matplotlib.axes.Axes
An MPL axes to plot to.
edgecolor : str
The color of the circle.
angle : float
Angle of the rectangle.
fill : bool
Whether to fill the rectangle with color or leave hollow.
"""
axes.add_patch(mpl_Rectangle((self.bl_corner.x, self.bl_corner.y),
width=self.width,
height=self.height,
angle=angle,
edgecolor=edgecolor,
alpha=alpha,
facecolor=facecolor,
fill=fill))
def annotate(artist: Artist, label: str, where: str="over", ax: Axes=None, **kwargs):
""" Add a Text object near *artist*. """
if where == "over":
x, y = _position_over(artist)
kwargs.setdefault("va", "center")
elif where == "below":
x, y = _position_below(artist)
kwargs.setdefault("va", "top")
elif where == "above":
x, y = _position_above(artist)
kwargs.setdefault("va", "bottom")
else:
raise ValueError("invalid value for 'where'")
return ax.text(x, y, label, **kwargs)
def plot_at_coordinates(images: np.ndarray,
coordinates: np.ndarray,
zoom: float,
ax: plt.Axes = None):
assert images.ndim == 3 and coordinates.ndim == 2
assert images.shape[0] == coordinates.shape[0] and coordinates.shape[1] == 2
if ax is None:
ax = plt.gca()
artists = []
for (x, y), to_plot in zip(coordinates, images):
im = OffsetImage(to_plot, zoom=zoom, cmap='coolwarm')
box = AnnotationBbox(im, (x, y), frameon=False)
artists.append(ax.add_artist(box))
return artists
def plot_attribute_reconstruction_from_svd(
self,
attribute_name,
number_of_principal_components='all',
axes: plt.Axes = None,
marker_size=3):
original_data = self.get_attribute(attribute_name)
reconstruction = self.reconstruction_from_principal_components(
number_of_principal_components=number_of_principal_components,
attribute_names=[attribute_name])
if axes is None:
figure = plt.figure()
axes = plt.axes()
figure.set_facecolor('white')
axes.set_facecolor('white')
axes.set_title(attribute_name +
f", {number_of_principal_components} principal "
f"components")
axes.set_xlabel('Original data')
axes.set_ylabel('Reconstructed data')
axes.scatter(original_data, reconstruction, s=marker_size)
def _radar(df: pd.DataFrame,
ax: plt.Axes,
label: Text,
all_tags: Sequence[Text],
color: Text,
alpha: float = 0.2,
edge_alpha: float = 0.85,
zorder: int = 2,
edge_style: Text = '-'):
"""Plot utility for generating the underlying radar plot."""
tmp = df.groupby('tag').mean().reset_index()
values = []
for curr_tag in all_tags:
score = 0.
selected = tmp[tmp['tag'] == curr_tag]
if len(selected) == 1:
score = float(selected['score'])
else:
print('{} bsuite scores found for tag {!r} with setting {!r}. '
'Replacing with zero.'.format(len(selected), curr_tag,
label))
values.append(score)
values = np.maximum(values, 0.05) # don't let radar collapse to 0.
values = np.concatenate((values, [values[0]]))
angles = np.linspace(0, 2 * np.pi, len(all_tags), endpoint=False)
angles = np.concatenate((angles, [angles[0]]))
ax.plot(angles,
values,
'-',
linewidth=5,
label=label,
c=color,
alpha=edge_alpha,
zorder=zorder,
linestyle=edge_style)
ax.fill(angles, values, alpha=alpha, color=color, zorder=zorder)
ax.set_thetagrids(angles * 180 / np.pi,
map(_tag_pretify, all_tags),
fontsize=18)
# To avoid text on top of gridlines, we flip horizontalalignment
# based on label location
text_angles = np.rad2deg(angles)
for label, angle in zip(ax.get_xticklabels()[:-1], text_angles[:-1]):
if 90 <= angle <= 270:
label.set_horizontalalignment('right')
else:
label.set_horizontalalignment('left')
def generate_gsr_range_correct_means_plot(axes: plt.Axes,
stimulus_data: pd.DataFrame):
"""
Plots range corrected means over two minute windows.
:param axes: the axes to plot on
:param stimulus_data: the raw stimulus data
:return: None
"""
plt.sca(axes)
windowed_data = stimulus_data.resample("2min").mean()[:15]
time = convert_date_to_time(windowed_data.index)
axes.set_title("Range-Corrected GSR Means Over Two-Minute Windows")
axes.set_xlabel("Time (minutes)", fontsize="large")
axes.set_ylabel("Range-Corrected GSR (dimensionless)")
axes.set_ylim(0, 1)
set_windowed_x_axis(axes)
axes.bar(time,
windowed_data[RANGE_CORRECT_EDA],
width=2,
align="edge",
edgecolor="black")
def plot(self,
ax: plt.Axes = None,
show: bool = True,
clear_fig: bool = False,
**kwargs):
"""Plot the image.
Parameters
----------
ax : matplotlib.Axes instance
The axis to plot the image to. If None, creates a new figure.
show : bool
Whether to actually show the image. Set to false when plotting multiple items.
clear_fig : bool
Whether to clear the prior items on the figure before plotting.
"""
if ax is None:
fig, ax = plt.subplots()
if clear_fig:
plt.clf()
ax.imshow(self.array, cmap=get_dicom_cmap(), **kwargs)
if show:
plt.show()
return ax
def draw_box(
pyplot_axis: plt.Axes,
vertices: np.ndarray,
axes: Optional[Any] = None,
color: Union[str, Tuple[float, float, float]] = "red",
) -> None:
axes = _get_axes_or_default(axes)
vertices = vertices[axes, :]
connections = [
[0, 1],
[1, 2],
[2, 3],
[3, 0], # Lower plane parallel to Z=0 plane
[4, 5],
[5, 6],
[6, 7],
[7, 4], # Upper plane parallel to Z=0 plane
[0, 4],
[1, 5],
[2, 6],
[3, 7], # Connections between upper and lower planes
]
for connection in connections:
pyplot_axis.plot(*vertices[:, connection], c=color, lw=0.5)
def show_contour(self, ax: plt.Axes = None):
"""Plot contours on image.
Parameters
----------
ax : matplotlib.Axes
Axes to use for plotting.
Returns
-------
ax : matplotlib.Axes
"""
if not ax:
fig, ax = plt.subplots()
ax.set_title('Contours')
self.contour.plot_mpl(ax=ax)
ax.imshow(self.image)
ax.axis('image')
ax.set_xticks([])
ax.set_yticks([])
return ax
def visualize_frequent_words(vectors_2d: np.ndarray,
dataset: DataSet,
k: int,
ax: plt.Axes = None) -> None:
word_ids, counts = np.unique(dataset.data, return_counts=True)
indices = np.argpartition(-counts, k)[:k]
frequent_word_ids = word_ids[indices]
if ax is None:
fig, ax = plt.subplots(figsize=(13, 13))
else:
fig = None
vectors_2d = vectors_2d[frequent_word_ids]
ax.scatter(vectors_2d[:, 0], vectors_2d[:, 1], s=2, alpha=0.25)
for i, id in enumerate(frequent_word_ids):
ax.annotate(dataset.vocabulary.to_word(id),
(vectors_2d[i, 0], vectors_2d[i, 1]))
if fig is not None:
fig.tight_layout()
fig.show()
def plot_curve(axes: plt.Axes,
filename: str,
label: str,
mask: Sequence[float] = None,
**kwargs: Any) -> List[lines.Line2D]:
"""
Plot a curve in the axes object with the values in the given file.
The file can include single line comments which start with #. Each line should contain two floats which are
the x and the y value, respectively.
Parameters
----------
axes : matplotlib.pyplot.Axes
The axes object.
filename : str
The filename.
label : str
The label of the plot.
mask : Sequence[float]
The range of the x-axis within data is plotted.
kwargs : Any
Additional kwargs which will be passed to the axes.plot method.
Returns
-------
matplotlib.lines.Line2D
A list of objects representing the plotted data.
"""
try:
if mask is None:
mask = [-float('inf'), float('inf')]
data = []
with open(filename, 'r') as file:
for line in file:
if line.startswith('#'):
continue
split_str = line.split()
x_value, y_value = float(split_str[0]), float(split_str[1])
if mask[0] <= x_value <= mask[1]:
data.append((x_value, y_value))
sorted(data)
x_values = [a[0] for a in data]
y_values = [a[1] for a in data]
return axes.plot(x_values, y_values, label=label, **kwargs)
except FileNotFoundError:
warnings.warn("Could not open the file {}.".format(filename))
return []
def center_axis(axes: plt.Axes, which='y'):
if which == 'y':
max_abs = np.max(np.abs(axes.get_ylim()))
axes.set_ylim(-max_abs, max_abs)
elif which == 'x':
max_abs = np.max(np.abs(axes.get_xlim()))
axes.set_xlim(-max_abs, max_abs)
elif which == 'both':
pass
return
def _default_after_subplot(self, ax: plt.Axes, group_name: str, x_label: str):
"""Add title xlabel and legend to single chart
Args:
ax: matplotlib Axes
group_name: name of metrics group (eg. Accuracy, Recall)
x_label: label of x axis (eg. epoch, iteration, batch)
"""
ax.set_title(group_name)
ax.set_xlabel(x_label)
ax.legend(loc='center right')
def __init__(
self,
ax: plt.Axes,
):
"""
:param ax: xxx
"""
canvas = ax.get_figure().canvas
canvas.mpl_connect("button_press_event", self._on_press)
canvas.mpl_connect("button_release_event", self._on_release)
canvas.mpl_connect("scroll_event", self._on_scroll_event)
self.ax = ax
self.canvas = canvas
self.last_point: Optional[Tuple[float, float]] = None
self.motion_handler: Optional[Callable] = None
def _plot_ax_outliers(axes: plt.Axes, ax_data: pd.Series, extents: np.ndarray):
if plotter == sns.kdeplot:
group = .5 * np.diff(axes.get_ylim())
ax_data = ax_data.values
outlier_data = ax_data[np.logical_or(cutoff_lo > ax_data, ax_data > cutoff_hi)]
_plot_outliers(axes, outlier_data, orient=orient, group=group, padding=padding,
plot_extents=extents, fmt=fmt)
return axes
if not group_names or len(group_names) == 1:
_plot_group_outliers(ax_data, extents, axes=axes)
return
for group_idx, group_name in enumerate(group_names):
_plot_group_outliers(ax_data, extents, group_idx=group_idx, group_name=group_name, axes=axes)
def graph_frame(hist: history.DB, db_res_case: int,
contour_key: history.ContourKey, ax: plt.Axes):
row_skeleton = history.ColumnResult._all_nones()._replace(
result_case_num=db_res_case)
column_data = list(hist.get_all_matching(row_skeleton))
col_data_graph = [
cd for cd in column_data if cd.contour_key == contour_key
]
ax.clear()
graphed_something = False
for yielded, base_col in (
(False, 'tab:blue'),
(True, 'tab:orange'),
):
# Fall back to NaNs, only override with the real data.
x_to_cd = {
cd.x: history.ColumnResult._nans_at(cd.x)
for cd in col_data_graph
}
# Override with the real thing
for cd in col_data_graph:
if cd.yielded == yielded:
x_to_cd[cd.x] = cd
graphed_something = True
res_to_plot = [cd for x, cd in sorted(x_to_cd.items())]
x = [cd.x for cd in res_to_plot]
y_min = [cd.minimum for cd in res_to_plot]
y_mean = [cd.mean for cd in res_to_plot]
y_max = [cd.maximum for cd in res_to_plot]
ax.fill_between(x, y_min, y_max, color=base_col, alpha=0.2)
yield_text = "Dilated" if yielded else "Undilated"
ax.plot(x,
y_mean,
color=base_col,
label=f"{contour_key.name} ({yield_text})")
ax.legend()
return graphed_something
def attach_probability_current_to_axis(
self,
axis: plt.Axes,
plot_limit: Optional[float] = None,
distance_unit: u.Unit = "bohr_radius",
rate_unit="per_asec",
):
distance_unit_value, _ = u.get_unit_value_and_latex(distance_unit)
rate_unit_value, _ = u.get_unit_value_and_latex(rate_unit)
(
current_mesh_z,
current_mesh_rho,
) = (self.mesh.get_probability_current_density_vector_field()
) # actually densities here
current_mesh_z *= self.mesh.delta_z
current_mesh_rho *= self.mesh.delta_rho
skip_count = (
int(self.mesh.z_mesh.shape[0] / 50),
int(self.mesh.z_mesh.shape[1] / 50),
)
skip = (slice(None, None,
skip_count[0]), slice(None, None, skip_count[1]))
normalization = np.nanmax(
np.sqrt((current_mesh_z**2) + (current_mesh_rho**2))[skip])
if normalization == 0:
normalization = 1
sli = self.mesh.get_mesh_slicer(plot_limit)
quiv = axis.quiver(
self.mesh.z_mesh[sli][skip] / distance_unit_value,
self.mesh.rho_mesh[sli][skip] / distance_unit_value,
current_mesh_z[sli][skip] / normalization,
current_mesh_rho[sli][skip] / normalization,
pivot="middle",
scale=10,
units="width",
scale_units="width",
alpha=0.5,
color="white",
)
return quiv
def get_bar_data(
plot_axis: plt.Axes
) -> Tuple[str, List[str], List[float], List[str], List[float], List[float],
List[Tuple[float, float, float, float]]]:
"""
Extracts plot's title, x-axis name and range and y-axis name and range.
Parameters
----------
plot_axis : matplotlib.pyplot.Axes
A matplotlib axis from which all of the aforementioned information will
be extracted.
Returns
-------
plot_title : string
Plot's title.
plot_x_tick_names : List[string]
Tick labels of the plot's x-axis.
plot_x_range : List[Number]
Range of the plot's x-axis.
plot_y_tick_names : List[string]
Tick labels of the plot's y-axis.
plot_y_range : List[Number]
Range of the plot's y-axis.
plot_bar_width : List[Number]
Bar width of every bar in the plot.
plot_bar_colours : List[Tuple[float, float, float, float]]
Bar colour of every bar in the plot. This is represented as an (r, g,
b, alpha) tuple.
"""
assert isinstance(plot_axis, plt.Axes), 'Must be a matplotlib axis.'
plot_title = plot_axis.get_title()
plot_x_tick_names = [
x.get_text() for x in plot_axis.xaxis.get_ticklabels()
]
plot_x_range = plot_axis.xaxis.get_view_interval()
plot_y_tick_names = [
y.get_text() for y in plot_axis.yaxis.get_ticklabels()
]
plot_y_range = plot_axis.yaxis.get_view_interval()
plot_bar_width = [ybar.get_width() for ybar in plot_axis.patches]
plot_bar_colours = [ybar.get_facecolor() for ybar in plot_axis.patches]
return (plot_title, plot_x_tick_names, plot_x_range, plot_y_tick_names,
plot_y_range, plot_bar_width, plot_bar_colours)
def volcano_plot(filename: str,
*,
ax: plt.Axes = None,
lfc_col: str = DESEQ2_LOG2_CHANGE,
pad_col: str = DESEQ2_PADJ,
threshold: float = 0.05,
use_threshold: bool = True,
color_col: str = None,
normal_color: Union[str, tuple] = Palette().blue(),
sign_color: Union[str, tuple] = Palette().red(),
scatter_options: dict = None,
add_labels: bool = True):
d = pd.read_csv(filename)
# Sanity check
try:
t = d[lfc_col], d[pad_col] # Temporary variable to check
except KeyError as e:
raise KeyError(f"Please check your input data. Your input data "
f"should have columns for log fold change "
f"'{DESEQ2_LOG2_CHANGE}' "
f"and adjusted p value '{DESEQ2_PADJ}' column. If "
f"your column names are different, please provide "
f"them with argument 'lfc_col' and 'pad_col'"
f"") from e
d = d.fillna(0) # type: pd.DataFrame
# Generate temporary column name
temp = f"temp_col{np.random.randint(1000, 9000)}"
colors = f"temp_color{np.random.randint(1000, 8000)}"
d[temp] = d[pad_col].map(lambda x: -np.log10(x))
d[colors] = normal_color
# Use different color for values below threshold
if use_threshold:
d.loc[d[pad_col] < threshold, colors] = sign_color
# If explicit color column is given, use those colors
if color_col is not None:
colors = color_col
# If no axes is given, generate default one
if ax is None:
_, ax = plt.subplots()
opts = {"marker": "."}
if scatter_options is not None:
opts = {**opts, **scatter_options}
ax.scatter(d[lfc_col], d[temp], color=d[colors], **opts)
if add_labels:
ax.set_ylabel("-Log$_{10}$ Adj P value")
ax.set_xlabel("Log$_2$ Fold change")
def image(
data: SWIFTDataset, ax: plt.Axes, radial_bins: np.array, center: np.array
) -> None:
"""
Creates the image of the gas density.
"""
delta = image_bounds[1] - image_bounds[0]
# Need to re-scale our x, y to 0:1
x = data.gas.coordinates[:, 0]
y = data.gas.coordinates[:, 1]
left = center[0] + image_bounds[0]
bottom = center[1] + image_bounds[0]
x = x - left
x = x / delta
y = y - bottom
y = y / delta
h = data.gas.smoothing_lengths
h = h / delta
m = data.gas.masses
image = scatter_parallel(y, x, m, h, image_res)
ax.imshow(image, cmap=image_cmap, norm=LogNorm(), origin="lower")
ax.text(
0.025,
0.975,
"Gas Density",
color=image_textcolor,
transform=ax.transAxes,
ha="left",
va="top",
)
ax.set_xticks([])
ax.set_yticks([])
return
def traj_colormap(ax: plt.Axes,
traj: trajectory.PosePath3D,
array: ListOrArray,
plot_mode: PlotMode,
min_map: float,
max_map: float,
title: str = "") -> None:
"""
color map a path/trajectory in xyz coordinates according to
an array of values
:param ax: plot axis
:param traj: trajectory.PosePath3D or trajectory.PoseTrajectory3D object
:param array: Nx1 array of values used for color mapping
:param plot_mode: PlotMode
:param min_map: lower bound value for color mapping
:param max_map: upper bound value for color mapping
:param title: plot title
"""
pos = traj.positions_xyz
norm = mpl.colors.Normalize(vmin=min_map, vmax=max_map, clip=True)
mapper = cm.ScalarMappable(
norm=norm,
cmap=SETTINGS.plot_trajectory_cmap) # cm.*_r is reversed cmap
mapper.set_array(array)
colors = [mapper.to_rgba(a) for a in array]
line_collection = colored_line_collection(pos, colors, plot_mode)
ax.add_collection(line_collection)
ax.autoscale_view(True, True, True)
if plot_mode == PlotMode.xyz:
ax.set_zlim(np.amin(traj.positions_xyz[:, 2]),
np.amax(traj.positions_xyz[:, 2]))
if SETTINGS.plot_xyz_realistic:
set_aspect_equal_3d(ax)
fig = plt.gcf()
cbar = fig.colorbar(
mapper, ticks=[min_map, (max_map - (max_map - min_map) / 2), max_map])
cbar.ax.set_yticklabels([
"{0:0.3f}".format(min_map),
"{0:0.3f}".format(max_map - (max_map - min_map) / 2),
"{0:0.3f}".format(max_map)
])
if title:
ax.legend(frameon=True)
plt.title(title)
def plot_text(axes: plt.Axes, text: str):
"""Plot text on an axes
Args:
axes (plt.Axes): an axes object
text (str): the text
"""
axes.axis('off')
axes.grid('off')
axes.text(x=0, y=0, s=text, horizontalalignment='left', fontdict=FONT)
def plot_grid(grid: RegularGrid, ax: Axes = None, crs: CRS = None, **kwargs):
kwargs.setdefault("origin", "bottom")
kwargs.setdefault("extent", grid.get_extent(crs=crs))
kwargs.setdefault("cmap", cm.binary_r)
# compute the pixels that can actually be displayed
_, _, width, height = ax.bbox.bounds
ny, nx = grid.size
r = (max(int(0.75 * ny // height), 1), max(int(0.75 * nx // width), 1))
arr = grid[::r[0], ::r[1]]
if not np.isnan(grid.nodata):
arr[arr == grid.nodata] = np.nan
im = ax.imshow(arr, **kwargs)
if ax == gca():
sci(im)
return im
def scatter(self, ax: plt.Axes) -> PathCollection:
"""Draw an x/y scatter plot
:param ax: Plot Axes.
:returns: the result of ax.scatter
"""
return ax.scatter(
self.x,
self.y,
label=self.label,
# edgecolors=self.edge,
# facecolor=self.face,
alpha=self.alpha,
marker=self.marker,
s=np.ones_like(self.x) * (self.size * 10), # ???
)
def line(self, ax: plt.Axes, show_markers: bool) -> List:
"""Draw an x/y line plot
:param ax: Plot Axes.
:param show_markers: Whether to show markers
:returns: the result of ax.plot
"""
return ax.plot(
self.x,
self.y,
label=self.label,
# color=self.color,
alpha=self.alpha,
marker=self.marker if show_markers else "",
markersize=self.size,
)
def plot_2B(ax: plt.Axes):
cm = np.zeros((len(Exp1.structures), len(Exp1.structures)))
for pid in DataExp1.pids:
data = DataExp1(pid)
cm += data.plot_confusion_matrix()
cm /= len(DataExp1.pids)
ticklabels = list(map(lambda s: f'${s}$', Exp1.structures))
plot_confusion_matrix(cm, ticklabels, ticklabels, ax)
ax.set_title('Human avg.')
ax.set_xlabel('Choice')
ax.set_ylabel('True Structure')
plt.tight_layout()
def p_bones(
axes_: Axes,
xy_pt1: np.ndarray,
xy_pt2: np.ndarray,
dxy: np.ndarray,
p_f: float = 0.9,
color_: str = blue_,
n_bones: int = 5,
do_primary: bool = True,
) -> None:
alpha_ = 0.7
p_dashing = [1, 0] # [4, 4]
p_lw = 3
axes_.plot(
[xy_pt1[0], xy_pt2[0]],
[xy_pt1[1], xy_pt2[1]],
dashes=p_dashing,
lw=p_lw,
color=color_,
alpha=1 if do_primary else alpha_,
)
bones = np.linspace(1, 0, n_bones, endpoint=False)
for i_, f in enumerate(bones):
x = xy_pt1[0] * f + xy_pt2[0] * (1 - f)
y = xy_pt1[1] * f + xy_pt2[1] * (1 - f)
sf = 4 if do_primary else 3
dx = dxy[0] * sf
dy = dxy[1] * sf
x_pair = [x - dx, x + dx]
y_pair = [y - dy, y + dy]
axes_.plot(
x_pair,
y_pair,
lw=5 if i_ == 0 else 2.5,
color=color_,
alpha=1 if do_primary else alpha_,
)
f = p_f
p_xy = (
xy_pt1[0] * f + xy_pt2[0] * (1 - f) - 0.1,
xy_pt1[1] * f + xy_pt2[1] * (1 - f) - 0.1,
)
if do_primary:
axes_.text(
*p_xy,
r"$\mathbf{\widetilde{p}}$",
color=color_,
fontsize=18,
rotation=0,
transform=axes_.transAxes,
horizontalalignment="right",
verticalalignment="bottom",
)
def set_aspect_equal_3d(ax: plt.Axes) -> None:
"""
kudos to https://stackoverflow.com/a/35126679
:param ax: matplotlib 3D axes object
"""
xlim = ax.get_xlim3d()
ylim = ax.get_ylim3d()
zlim = ax.get_zlim3d()
from numpy import mean
xmean = mean(xlim)
ymean = mean(ylim)
zmean = mean(zlim)
plot_radius = max([
abs(lim - mean_)
for lims, mean_ in ((xlim, xmean), (ylim, ymean), (zlim, zmean))
for lim in lims
])
ax.set_xlim3d([xmean - plot_radius, xmean + plot_radius])
ax.set_ylim3d([ymean - plot_radius, ymean + plot_radius])
ax.set_zlim3d([zmean - plot_radius, zmean + plot_radius])
def render_poly(poly: shapely.geometry.Polygon, ax: plt.Axes, kw=None):
"""Render an individual shapely shapely.geometry.Polygon.
Args:
poly (shapely.geometry.Polygon): Poly or multipoly to render.
ax (plt.Axes): Matplotlib axis to render to.
kw (dict): Dictionary of kwargs for the plotting. Defaults to None.
Returns:
patch: ax.add_patch result
"""
# TODO: maybe if done in batch we can speed this up?
kw = kw or {}
return ax.add_patch(
descartes.PolygonPatch(poly, **{
**style_config.poly,
**kw
}))
def hexplot(
ax: plt.Axes,
grid: np.ndarray,
data: np.ndarray,
hex_size: float=11.5,
cmap: str='viridis'
) -> plt.Axes:
"""
Plot grid and data on a hexagon grid. Useful for SOMs.
Parameters
----------
ax : Axes to plot on.
grid : Array of (x, y) tuples.
data : Array of len(grid) with datapoint.
hex_size : Radius in points determining the hexagon size.
cmap : Colormap to use for colouring.
Returns
-------
ax : Axes with hexagon plot.
"""
# Create hexagons
collection = RegularPolyCollection(
numsides=6,
sizes=(2 * np.pi * hex_size ** 2,),
edgecolors=(0, 0, 0, 0),
transOffset=ax.transData,
offsets=grid,
array=data,
cmap=plt.get_cmap(cmap)
)
# Scale the plot properly
ax.add_collection(collection, autolim=True)
ax.set_xlim(grid[:, 0].min() - 0.75, grid[:, 0].max() + 0.75)
ax.set_ylim(grid[:, 1].min() - 0.75, grid[:, 1].max() + 0.75)
ax.axis('off')
return ax
def __draw_track__(self, rhythm_track: Track, axes: plt.Axes, **kw):
ioi_vector = self.get_feature_extractor("ioi_vector").process(
rhythm_track)
onset_positions = self.get_feature_extractor(
"onset_positions").process(rhythm_track)
# noinspection SpellCheckingInspection
styles = {
'edgecolor': kw['color'],
'facecolor': colors.to_rgba(kw['color'], 0.18),
'linewidth': 2.0
}
return axes.bar(onset_positions,
ioi_vector,
width=ioi_vector,
align="edge",
**styles)
def attach_mesh_to_axis(
self,
axis: plt.Axes,
mesh: "meshes.ScalarMesh",
distance_unit: u.Unit = "bohr_radius",
norm=si.vis.AbsoluteRenormalize(),
plot_limit=None,
slicer="get_mesh_slicer",
**kwargs,
):
unit_value, _ = u.get_unit_value_and_latex(distance_unit)
_slice = getattr(self.mesh, slicer)(plot_limit)
(line, ) = axis.plot(self.mesh.z_mesh[_slice] / unit_value,
norm(mesh[_slice]), **kwargs)
return line
def make_plot(
self,
axes: pyplot.Axes = None,
vmin: float = None,
vmax: float = None,
show: bool = False,
title: str = None,
# figsize=rcParams["figure.figsize"],
extent: (float, float, float, float) = None,
cbar_label: str = None,
**kwargs
):
if vmin is None:
vmin = np.min(self.values)
if vmax is None:
vmax = np.max(self.values)
kwargs.update(**fig.get_topobathy_kwargs(self.values, vmin, vmax))
kwargs.pop('col_val')
levels = kwargs.pop('levels')
if vmin != vmax:
self.tricontourf(
axes=axes,
levels=levels,
vmin=vmin,
vmax=vmax,
**kwargs
)
else:
self.tripcolor(axes=axes, **kwargs)
self.quadface(axes=axes, **kwargs)
axes.axis('scaled')
if extent is not None:
axes.axis(extent)
if title is not None:
axes.set_title(title)
mappable = ScalarMappable(cmap=kwargs['cmap'])
mappable.set_array([])
mappable.set_clim(vmin, vmax)
divider = make_axes_locatable(axes)
cax = divider.append_axes("bottom", size="2%", pad=0.5)
cbar = plt.colorbar(
mappable,
cax=cax,
orientation='horizontal'
)
cbar.set_ticks([vmin, vmax])
cbar.set_ticklabels([np.around(vmin, 2), np.around(vmax, 2)])
if cbar_label is not None:
cbar.set_label(cbar_label)
if show:
pyplot.show()
return axes
def make_dual_axis(ax: plt.Axes = None, axis='x', unit='nm', minor_ticks=True):
if ax is None:
ax = plt.gca()
if axis == 'x':
pseudo_ax = ax.twiny()
limits = ax.get_xlim()
u, l = 1e7 / np.array(limits)
pseudo_ax.set_xlim(limits)
sub_axis = pseudo_ax.xaxis
elif axis == 'y':
pseudo_ax = ax.twinx()
limits = ax.get_ylim()
u, l = 1e7 / np.array(limits)
pseudo_ax.set_ylim(limits)
sub_axis = pseudo_ax.yaxis
else:
raise ValueError('axis must be either x or y.')
def conv(x, y):
return '%.0f' % (1e7 / x)
ff = plt.FuncFormatter(conv)
sub_axis.set_major_formatter(ff)
major = [1000, 500, 200, 100, 50]
minor = [200, 100, 50, 25, 10]
for x, m in zip(major, minor):
a, b = math.ceil(u / x), math.ceil(l / x)
n = abs(b - a)
if n > 4:
ticks = np.arange(a * x, b * x, x, )
a, b = math.floor(u / m), math.floor(l / m)
min_ticks = np.arange(a * m, b * m, m)
break
sub_axis.set_ticks(1e7 / ticks)
sub_axis.set_ticks(1e7 / min_ticks, minor=True)
if minor_ticks:
ax.minorticks_on()
# pseudo_ax.minorticks_on()
if unit is 'nm':
sub_axis.set_label('Wavelengths [nm]')
elif unit is 'cm':
sub_axis.set_label('Wavenumber [1/cm]')
def plot2axes(self, axes: plt.Axes=None, edgecolor: str='black', fill: bool=False, plot_peaks: bool=True):
"""Plot the circle to an axes.
Parameters
----------
axes : matplotlib.Axes, None
The axes to plot on. If None, will create a new figure of the image array.
edgecolor : str
Color of the Circle; must be a valid matplotlib color.
fill : bool
Whether to fill the circle. matplotlib keyword.
plot_peaks : bool
If True, plots the found peaks as well.
"""
if axes is None:
fig, axes = plt.subplots()
axes.imshow(self.image_array)
axes.add_patch(
mpl_Circle((self.center.x, self.center.y), edgecolor=edgecolor, radius=self.radius, fill=fill))
if plot_peaks:
x_locs = [peak.x for peak in self.peaks]
y_locs = [peak.y for peak in self.peaks]
axes.autoscale(enable=False)
axes.scatter(x_locs, y_locs, s=40, marker='x', c=edgecolor)
def _plot_symmetry(self, direction: str, axis: plt.Axes=None):
plt.ioff()
if axis is None:
fig, axis = plt.subplots()
data = self.symmetry[direction.lower()]
axis.set_title(direction.capitalize() + " Symmetry")
axis.plot(data['profile'].values)
# plot lines
cax_idx = data['profile'].fwxm_center()
axis.axvline(data['profile left'], color='g', linestyle='-.')
axis.axvline(data['profile right'], color='g', linestyle='-.')
axis.axvline(cax_idx, color='m', linestyle='-.')
# plot symmetry array
if not data['array'] == 0:
twin_axis = axis.twinx()
twin_axis.plot(range(cax_idx, data['profile right']), data['array'][int(round(len(data['array'])/2)):])
twin_axis.set_ylabel("Symmetry (%)")
_remove_ticklabels(axis)
# plot profile mirror
central_idx = int(round(data['profile'].values.size / 2))
offset = cax_idx - central_idx
mirror_vals = data['profile'].values[::-1]
axis.plot(data['profile']._indices + 2 * offset, mirror_vals)
def plot_heatmap(
dataset: netCDF4.Dataset,
ax: plt.Axes = None,
color: str = "charge",
residues: list = None,
zerobased: bool = False,
):
"""Plot the states, or the charges as colored blocks
Parameters
----------
dataset - netCDF$.Dataset containing Protons information.
ax - matplotlib Axes object
color - 'charge', 'state', 'taut' , color by charge, by state, or charge and shade by tautomer
residues - list, residues to plot
zerobased - bool default False - use zero based labeling for states.
Returns
-------
ax - plt.Axes
"""
# Convert to array, and make sure types are int
if ax is None:
ax = plt.gca()
if zerobased:
label_offset = 0
else:
label_offset = 1
if color == "charge":
vmin = -2
vmax = 2
center = 0
cmap = sns.diverging_palette(
25, 244, l=60, s=95, sep=80, center="light", as_cmap=True
)
ticks = np.arange(vmin, vmax + 1)
boundaries = np.arange(vmin - 0.5, vmax + 1.5)
cbar_kws = {"ticks": ticks, "boundaries": boundaries, "label": color.title()}
elif color == "state":
vmin = 0 + label_offset
vmax = label_offset + np.amax(dataset["Protons/Titration/state"][:, :])
ticks = np.arange(vmin, vmax + 1)
boundaries = np.arange(vmin - 0.5, vmax + 1.5)
cbar_kws = {"ticks": ticks, "boundaries": boundaries, "label": color.title()}
center = None
cmap = "Accent"
else:
raise ValueError("color argument should be 'charge', or 'state'.")
to_plot = None
if residues is None:
if color == "charge":
to_plot = charge_taut_trace(dataset)[0][:, :]
elif color == "state":
titration_states = dataset["Protons/Titration/state"][:, :]
to_plot = titration_states + label_offset
else:
if isinstance(residues, int):
residues = [residues]
residues = np.asarray(residues).astype(np.int)
if color == "charge":
to_plot = charge_taut_trace(dataset)[0][:, residues]
elif color == "state":
to_plot = dataset["Protons/Titration/state"][:, residues] + label_offset
ax = sns.heatmap(
to_plot.T,
ax=ax,
vmin=vmin,
vmax=vmax,
center=center,
xticklabels=int(np.floor(to_plot.shape[0] / 7)) - 1,
yticklabels=int(np.floor(to_plot.shape[1] / 4)) - 1,
cmap=cmap,
cbar_kws=cbar_kws,
edgecolor="None",
snap=True,
)
for residue in range(to_plot.T.shape[1]):
ax.axhline(residue, lw=0.4, c="w")
ax.set_ylabel("Residue")
ax.set_xlabel("Update")
return ax
def plot_tautomer_heatmap(
dataset: netCDF4.Dataset,
ax: plt.Axes = None,
residues: list = None,
zerobased: bool = False,
):
"""Plot the charge of residues on a blue-red (negative-positive) scale, and add different shades for different tautomers.
Parameters
----------
dataset - netCDF4 dataset containing protons data
ax - matplotlib Axes object
residues - list, residues to plot
zerobased - bool default False - use zero based labeling for states.
Returns
-------
plt.Axes
"""
# Convert to array, and make sure types are int
if ax is None:
ax = plt.gca()
if zerobased:
label_offset = 0
else:
label_offset = 1
# color charges, and add shade for tautomers
vmin = -2
vmax = 2
center = 0
cmap = sns.diverging_palette(
25, 244, l=60, s=95, sep=80, center="light", as_cmap=True
)
ticks = np.arange(vmin, vmax + 1)
boundaries = np.arange(vmin - 0.5, vmax + 1.5)
cbar_kws = {"ticks": ticks, "boundaries": boundaries, "label": "Charge"}
taut_vmin = 0 + label_offset
taut_vmax = label_offset + np.amax(dataset["Protons/Titration/state"][:, :])
taut_ticks = np.arange(taut_vmin, taut_vmax + 1)
taut_boundaries = np.arange(taut_vmin - 0.5, taut_vmax + 1.5)
taut_cbar_kws = {"boundaries": taut_boundaries}
taut_center = None
taut_cmap = "Greys"
to_plot = None
if residues is None:
to_plot, taut_to_plot = charge_taut_trace(dataset)
else:
if isinstance(residues, int):
residues = [residues]
residues = np.asarray(residues).astype(np.int)
charges, tauts = charge_taut_trace(dataset)
to_plot = charges[:, residues]
taut_to_plot = tauts[:, residues]
mesh = ax.pcolor(to_plot.T, cmap=cmap, vmin=vmin, vmax=vmax, snap=True, alpha=1.0)
plt.colorbar(mesh, ax=ax, **cbar_kws)
taut_mesh = ax.pcolor(
taut_to_plot.T,
cmap=taut_cmap,
vmin=taut_vmin,
vmax=taut_vmax,
alpha=0.1,
snap=True,
)
for residue in range(to_plot.T.shape[0]):
ax.axhline(residue, lw=0.4, c="w")
ax.set_ylabel("Residue")
ax.set_xlabel("Update")
return ax
def plot_line(geom: Union[Line, Iterable[Line]], *args,
ax: Axes=None, crs: CRS=None, **kwargs):
""" Plot a Line geometry, projected to the coordinate system `crs` """
x, y = geom.get_coordinate_lists(crs=crs)
return ax.plot(x, y, *args, **kwargs)
def plot_point(geom: Union[Point, Iterable[Point]], *args,
ax: Axes=None, crs: CRS=None, **kwargs):
""" Plot a Point geometry, projected to the coordinate system `crs` """
kwargs.setdefault("marker", ".")
x, y = geom.get_vertex(crs=crs)
return ax.plot(x, y, *args, **kwargs)
def _remove_ticklabels(axis: plt.Axes):
axis.get_yaxis().set_ticklabels([])
axis.get_xaxis().set_ticklabels([])
def label_ticks(xs: Iterable[float], ys: Iterable[float], ax: Axes=None,
map_crs: CRS=Cartesian, graticule_crs: CRS=SphericalEarth,
textargs=None, tickargs=None,
xformatter=None, yformatter=None):
""" Label graticule lines, returning a list if Text objects.
Parameters
----------
xs : Iterable[float],
ys : Iterable[float]
Easting and northing componenets of labels, in `graticule_crs`
ax : Axes, optional
Axes to draw to (default current Axes)
map_crs : karta.crs.CRS, optional
CRS giving the display projection (default Cartesian)
graticule_crs : karta.crs.CRS, optional
CRS giving the graticule/label projection (default SphericalEarth)
textargs : dict, optional
Keyword arguments to pass to plt.text
tickargs : dict, optional
Keyword arguments to pass to plt.plot
xformatter : callable, optional
function that given an easting/longitude returns a label
yformatter : callable, optional
function that given a northing/latitude returns a label
"""
if textargs is None:
textargs = dict()
if tickargs is None:
tickargs = dict(marker="+", mew=2, ms=14, mfc="k", mec="k", ls="none")
if xformatter is None:
xformatter = lambda x: "{0} E".format(x)
if yformatter is None:
yformatter = lambda y: "{0} N".format(y)
# Find tick locations
bbox = get_axes_extent(ax, map_crs, graticule_crs) # bottom, right, top, left
ticks = dict(xticks=[], yticks=[])
xmin, xmax = sorted(ax.get_xlim())
ymin, ymax = sorted(ax.get_ylim())
# bottom spine
for x in xs:
if isbetween(x, bbox[0][0], bbox[1][0]):
ticks["xticks"].append((froot(lambda xt:
map_crs.transform(graticule_crs, xt, ymin)[0]-x,
xmin, xmax), ymin, xformatter(x)))
for y in ys:
if isbetween(y, bbox[0][1], bbox[1][1]):
ticks["yticks"].append((froot(lambda xt:
map_crs.transform(graticule_crs, xt, ymin)[1]-y,
xmin, xmax), ymin, yformatter(y)))
# top spine
for x in xs:
if isbetween(x, bbox[2][0], bbox[3][0]):
ticks["xticks"].append((froot(lambda xt:
map_crs.transform(graticule_crs, xt, ymax)[0]-x,
xmin, xmax), ymax, xformatter(x)))
for y in ys:
if isbetween(y, bbox[2][1], bbox[3][1]):
ticks["yticks"].append((froot(lambda xt:
map_crs.transform(graticule_crs, xt, ymax)[1]-y,
xmin, xmax), ymax, yformatter(y)))
# left spine
for x in xs:
if isbetween(x, bbox[0][0], bbox[3][0]):
ticks["xticks"].append((xmin,
froot(lambda yt:
map_crs.transform(graticule_crs, xmin, yt)[0]-x,
ymin, ymax), xformatter(x)))
for y in ys:
if isbetween(y, bbox[0][1], bbox[3][1]):
ticks["yticks"].append((xmin,
froot(lambda yt:
map_crs.transform(graticule_crs, xmin, yt)[1]-y,
ymin, ymax), yformatter(y)))
# right spine
for x in xs:
if isbetween(x, bbox[1][0], bbox[2][0]):
ticks["xticks"].append((xmax,
froot(lambda yt:
map_crs.transform(graticule_crs, xmax, yt)[0]-x,
ymin, ymax), xformatter(x)))
for y in ys:
if isbetween(y, bbox[1][1], bbox[2][1]):
ticks["yticks"].append((xmax,
froot(lambda yt:
map_crs.transform(graticule_crs, xmax, yt)[1]-y,
ymin, ymax), yformatter(y)))
# Update map
txts = []
for pt in ticks["xticks"]:
ax.plot(pt[0], pt[1], **tickargs)
txts.append(ax.text(pt[0], pt[1], pt[2], **textargs))
for pt in ticks["yticks"]:
ax.plot(pt[0], pt[1], **tickargs)
txts.append(ax.text(pt[0], pt[1], pt[2], **textargs))
ax.set_xticks([])
ax.set_yticks([])
return txts
def _plot_deviation(self, item: str, ax: plt.Axes=None, show: bool=True):
"""Helper function: Plot the sag in Cartesian coordinates.
Parameters
----------
item : {'gantry', 'epid', 'collimator', 'couch'}
The axis to plot.
ax : None, matplotlib.Axes
The axis to plot to. If None, creates a new plot.
show : bool
Whether to show the image.
"""
title = f'Relative {item} displacement'
if item == EPID:
attr = 'epid'
item = GANTRY
else:
attr = 'bb'
# get axis images, angles, and shifts
imgs = [image for image in self.images if image.variable_axis in (item, REFERENCE)]
angles = [getattr(image, '{}_angle'.format(item.lower())) for image in imgs]
z_sag = np.array([getattr(image, attr + '_z_offset') for image in imgs])
y_sag = np.array([getattr(image, attr + '_y_offset') for image in imgs])
x_sag = np.array([getattr(image, attr + '_x_offset') for image in imgs])
rms = np.sqrt(x_sag**2+y_sag**2+z_sag**2)
# plot the axis deviation
if ax is None:
ax = plt.subplot(111)
ax.plot(angles, z_sag, 'bo', label='In/Out', ls='-.')
ax.plot(angles, x_sag, 'm^', label='Left/Right', ls='-.')
if item not in (COUCH, COLLIMATOR):
ax.plot(angles, y_sag, 'r*', label='Up/Down', ls='-.')
ax.plot(angles, rms, 'g+', label='RMS', ls='-')
ax.set_title(title)
ax.set_ylabel('mm')
ax.set_xlabel(f"{item} angle")
ax.set_xticks(np.arange(0, 361, 45))
ax.set_xlim([-15, 375])
ax.grid(True)
ax.legend(numpoints=1)
if show:
plt.show()