Merge pull request #15171 from dstansby/3dslider

tacaswell · web-flow · commit e34f7ee1da5e · 2019-09-02T14:25:14.000-04:00
MNT: Add useful error message when trying to add Slider to 3DAxes
diff --git a/lib/matplotlib/widgets.py b/lib/matplotlib/widgets.py
@@ -320,6 +320,9 @@ def __init__(self, ax, label, valmin, valmax, valinit=0.5, valfmt='%1.2f',
         knob.  See the :class:`~matplotlib.patches.Rectangle` documentation for
         valid property names (e.g., `facecolor`, `edgecolor`, `alpha`).
         """
+        if ax.name == '3d':
+            raise ValueError('Sliders cannot be added to 3D Axes')
+
         AxesWidget.__init__(self, ax)
 
         if slidermin is not None and not hasattr(slidermin, 'val'):
