def geometric_realization(self, dim: int, ax: Axes) -> None:
"""
Draw simplices of one dimension.
Args:
dim (int): simplex dimension
ax (matplotlib.axes.Axes): axes to draw on
Returns:
None
"""
if dim > self.simplex_dim:
raise ValueError(
f"Dimensionality is too high: max dim for this complex is {self.simplex_dim} but got {dim} as dim"
)
ax.set_xlim(self.vertices[:, 0].min() - 1,
self.vertices[:, 0].max() + 1)
ax.set_ylim(self.vertices[:, 1].min() - 1,
self.vertices[:, 1].max() + 1)
if dim == 0: # points
ax.scatter(self.vertices[:, 0], self.vertices[:, 1])
return
coords = [
self._simplex_to_point_set(simplex)
for simplex in self.simplices[dim]
]
if dim == 1: # edges
ax.add_collection(LineCollection(coords))
else: # volumes
for polygon in coords:
ax.fill(polygon[:, 0], polygon[:, 1], color=(0, 0, 1, 0.1))
def plot_polygon(
geometry: Union[Polygon, MultiPolygon],
fill: bool = False,
axis: Axes = None,
show: bool = False,
**kwargs,
) -> Axes:
"""
Plot the given polygon.
:param geometry: Shapely polygon (or multipolygon)
:param axis: `pyplot` axis to plot to
:param show: whether to show the plot
"""
if axis is None:
axis = pyplot.gca()
if 'c' not in kwargs:
try:
color = next(axis._get_lines.color_cycle)
except AttributeError:
color = 'r'
kwargs['c'] = color
if isinstance(geometry, dict):
geometry = shapely_shape(geometry)
if type(geometry) is Polygon:
if fill:
axis.fill(*geometry.exterior.xy, **kwargs)
kwargs['c'] = 'w'
for interior in geometry.interiors:
axis.fill(*interior.xy, **kwargs)
else:
axis.plot(*geometry.exterior.xy, **kwargs)
for interior in geometry.interiors:
axis.plot(*interior.xy, **kwargs)
elif type(geometry) is MultiPolygon:
for polygon in geometry:
plot_polygon(geometry=polygon,
axis=axis,
fill=fill,
show=False,
**kwargs)
else:
if fill:
axis.fill(*geometry.xy, **kwargs)
else:
axis.plot(*geometry.xy, **kwargs)
if show:
pyplot.show()
return axis
def create_spider_chart_plot(
axis: Axes,
data_to_plot: dict,
categories: List[str],
accept_classes: List[str],
):
"""Creates spider-chart with ``categories`` for all classes in ``accept_classes``.
Args:
axis (Axes): Axes-instances to use for the spider-chart
data_to_plot (dict): Dictionary containing ``categories`` as keys.
categories (list of str): List of category-names to use for the spider-chart.
accept_classes (list of str): List of class-names to use for the spider-chart.
"""
# create labels
lables = [category.replace("_", "-") for category in categories]
# Calculate metrics for each class
vals = {
cat: [
cat_vals["auc"] for x, cat_vals in data_to_plot[cat].items()
if x in accept_classes
]
for cat in categories
}
# norm everything to AP
for key in ["Center_Dist", "Size_Similarity", "OS_Yaw", "OS_Pitch_Roll"]:
vals[key] = [v * float(ap) for (v, ap) in zip(vals[key], vals["AP"])]
# setup axis
num_categories = len(categories)
angles = [
n / float(num_categories) * 2 * np.pi for n in range(num_categories)
]
angles += angles[:1]
axis.set_theta_offset(np.pi / 2.)
axis.set_theta_direction(-1)
axis.set_rlabel_position(0)
axis.set_yticks([0.25, 0.50, 0.75])
axis.set_yticklabels(["0.25", "0.50", "0.75"], color="grey", size=7)
axis.tick_params(axis="x", direction="out", pad=10)
axis.set_ylim([0, 1])
axis.set_xticks(np.arange(0, 2.0 * np.pi, np.pi / 2.5))
axis.set_xticklabels(lables)
for idx, class_name in enumerate(accept_classes):
values = [x[idx] for x in [vals[cat] for cat in categories]]
values += values[:1]
axis.plot(angles,
values,
linewidth=1,
linestyle='solid',
color=csToMplColor(class_name))
axis.fill(angles, values, color=csToMplColor(class_name), alpha=0.05)
axis.plot(
angles,
[np.mean(x) for x in [vals[cat] for cat in categories] + [vals["AP"]]],
linewidth=1,
linestyle='solid',
color="r",
label="Mean")
axis.legend(bbox_to_anchor=(0, 0))
