diff --git a/examples/specialty_plots/radar_chart.py b/examples/specialty_plots/radar_chart.py
index 93c915893f9b..339ca269e45d 100644
--- a/examples/specialty_plots/radar_chart.py
+++ b/examples/specialty_plots/radar_chart.py
@@ -42,11 +42,22 @@ def radar_factory(num_vars, frame='circle'):
# calculate evenly-spaced axis angles
theta = np.linspace(0, 2*np.pi, num_vars, endpoint=False)
+ class RadarTransform(PolarAxes.PolarTransform):
+
+ def transform_path_non_affine(self, path):
+ # Paths with non-unit interpolation steps correspond to gridlines,
+ # in which case we force interpolation (to defeat PolarTransform's
+ # autoconversion to circular arcs).
+ if path._interpolation_steps > 1:
+ path = path.interpolated(num_vars)
+ return Path(self.transform(path.vertices), path.codes)
+
class RadarAxes(PolarAxes):
name = 'radar'
# use 1 line segment to connect specified points
RESOLUTION = 1
+ PolarTransform = RadarTransform
def __init__(self, *args, **kwargs):
super().__init__(*args, **kwargs)
@@ -175,7 +186,7 @@ def example_data():
horizontalalignment='center', verticalalignment='center')
for d, color in zip(case_data, colors):
ax.plot(theta, d, color=color)
- ax.fill(theta, d, facecolor=color, alpha=0.25)
+ ax.fill(theta, d, facecolor=color, alpha=0.25, label='_nolegend_')
ax.set_varlabels(spoke_labels)
# add legend relative to top-left plot
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