Fix examples of shaded_fraction1d (#2215)

* Update example of shaded_fraction1d

* Update v0.11.1.rst

docs/sphinx/source/whatsnew/v0.11.1.rst

@@ -55,6 +55,7 @@ Documentation
 * Added gallery example demonstrating how to use
   different Perez coefficients in a ModelChain.
   (:issue:`2127`, :pull:`2148`)
+* Fixed examples in :py:func:`pvlib.shading.shaded_fraction1d`. (:pull:`#2215`)
 
 * Removed unused "times" input from dni_et() function (:issue:`2105`)
 

pvlib/shading.py

@@ -449,11 +449,11 @@ def shaded_fraction1d(
     Tilted row with a pitch of 3 m, a collector width of
     2 m, and row rotations of 30°. In the morning.
 
-    >>> shaded_fraction1d(solar_zenith=80, solar_azimuth=104.5,
+    >>> shaded_fraction1d(solar_zenith=80, solar_azimuth=135,
     ...     axis_azimuth=90, shaded_row_rotation=30, shading_row_rotation=30,
     ...     collector_width=2, pitch=3, axis_tilt=0,
     ...     surface_to_axis_offset=0.05, cross_axis_slope=0)
-    0.6827437712114521
+    0.47755694708090535
 
     **Fixed-tilt north-facing array on sloped terrain**
 
@@ -463,11 +463,11 @@ def shaded_fraction1d(
     10° slope, where their axis is on the most inclined
     direction (zero cross-axis slope). Shaded in the morning.
 
-    >>> shaded_fraction1d(solar_zenith=65, solar_azimuth=75.5,
+    >>> shaded_fraction1d(solar_zenith=80, solar_azimuth=75.5,
     ...     axis_azimuth=270, shaded_row_rotation=50, shading_row_rotation=30,
     ...     collector_width=2.5, pitch=4, axis_tilt=10,
     ...     surface_to_axis_offset=0.05, cross_axis_slope=0)
-    0.6975923460352351
+    0.793244836197256
 
     **N-S single-axis tracker on sloped terrain**
 
@@ -476,10 +476,10 @@ def shaded_fraction1d(
     in the morning. Terrain slope is 7° west-east (east-most
     tracker is higher than the west-most tracker).
 
-    >>> shaded_fraction1d(solar_zenith=50, solar_azimuth=90, axis_azimuth=180,
+    >>> shaded_fraction1d(solar_zenith=80, solar_azimuth=90, axis_azimuth=180,
     ...     shaded_row_rotation=-30, collector_width=1.4, pitch=3, axis_tilt=0,
     ...     surface_to_axis_offset=0.10, cross_axis_slope=7)
-    0.5828961460616938
+    0.8242176864434579
 
     Note the previous example only is valid for the shaded fraction of the
     west-most tracker in the morning, and assuming it is the
@@ -491,10 +491,10 @@ def shaded_fraction1d(
     tracker, you must input the corresponding ``shaded_row_rotation``
     in the afternoon.
 
-    >>> shaded_fraction1d(solar_zenith=50, solar_azimuth=270, axis_azimuth=180,
+    >>> shaded_fraction1d(solar_zenith=80, solar_azimuth=270, axis_azimuth=180,
     ...     shaded_row_rotation=30, collector_width=1.4, pitch=3, axis_tilt=0,
     ...     surface_to_axis_offset=0.10, cross_axis_slope=7)
-    0.4399034444363955
+    0.018002567182254348
 
     You must switch the input/output depending on the
     sign of the projected solar zenith angle. See