_bearings_distribution: bin_centers terminology

osmnx/bearing.py

@@ -268,8 +268,9 @@ def _bearings_distribution(
 
     Returns
     -------
-    bin_counts, bin_edges
-        Counts of bearings per bin and the bins edges.
+    bin_counts, bin_centers
+        Counts of bearings per bin and the bins' centers in degrees.
+        Both arrays are of length `num_bins`.
     """
     n = num_bins * 2
     bins = np.arange(n + 1) * 360 / n
@@ -282,6 +283,6 @@ def _bearings_distribution(
     count = np.roll(count, 1)
     bin_counts = count[::2] + count[1::2]
 
-    # because we merged the bins, their edges are now only every other one
-    bin_edges = bin_edges[range(0, len(bin_edges), 2)]
-    return bin_counts, bin_edges
+    # because we merged the bins, their centers are now only every other one
+    bin_centers = bin_edges[range(0, len(bin_edges) - 1, 2)]
+    return bin_counts, bin_centers

osmnx/plot.py

@@ -749,7 +749,7 @@ def plot_orientation(  # noqa: PLR0913
         }
 
     # get the bearings' distribution's bin counts and edges
-    bin_counts, bin_edges = bearing._bearings_distribution(
+    bin_counts, bin_centers = bearing._bearings_distribution(
         G,
         num_bins,
         min_length=min_length,
@@ -758,7 +758,7 @@ def plot_orientation(  # noqa: PLR0913
 
     # positions: where to center each bar. ignore the last bin edge, because
     # it's the same as the first (i.e., 0 degrees = 360 degrees)
-    positions = np.radians(bin_edges[:-1])
+    positions = np.radians(bin_centers)
 
     # width: make bars fill the circumference without gaps or overlaps
     width = 2 * np.pi / num_bins