diff --git a/lib/mpl_toolkits/mplot3d/art3d.py b/lib/mpl_toolkits/mplot3d/art3d.py
index 0330efd78e51..f56aee41731c 100644
--- a/lib/mpl_toolkits/mplot3d/art3d.py
+++ b/lib/mpl_toolkits/mplot3d/art3d.py
@@ -487,33 +487,28 @@ def do_3d_projection(self, renderer):
xs, ys, zs = self._offsets3d
vxs, vys, vzs, vis = proj3d.proj_transform_clip(xs, ys, zs, renderer.M)
- fcs = (_zalpha(self._facecolor3d, vzs) if self._depthshade else
- self._facecolor3d)
- fcs = mcolors.to_rgba_array(fcs, self._alpha)
- self.set_facecolors(fcs)
-
- ecs = (_zalpha(self._edgecolor3d, vzs) if self._depthshade else
- self._edgecolor3d)
-
# Sort the points based on z coordinates
# Performance optimization: Create a sorted index array and reorder
# points and point properties according to the index array
z_markers_idx = np.argsort(vzs)[::-1]
- # Re-order items
- vzs = vzs[z_markers_idx]
- vxs = vxs[z_markers_idx]
- vys = vys[z_markers_idx]
- fcs = fcs[z_markers_idx]
- ecs = ecs[z_markers_idx]
- vps = np.column_stack((vxs, vys))
+ if len(self._facecolor3d):
+ fcs = (_zalpha(self._facecolor3d, vzs) if self._depthshade else
+ self._facecolor3d)
+ fcs = mcolors.to_rgba_array(fcs, self._alpha)
+ fcs = fcs[z_markers_idx]
+ self.set_facecolors(fcs)
- fcs = mcolors.to_rgba_array(fcs, self._alpha)
+ ecs = (_zalpha(self._edgecolor3d, vzs) if self._depthshade else
+ self._edgecolor3d)
+ ecs = ecs[z_markers_idx]
ecs = mcolors.to_rgba_array(ecs, self._alpha)
-
self.set_edgecolors(ecs)
- self.set_facecolors(fcs)
+ vzs = vzs[z_markers_idx]
+ vxs = vxs[z_markers_idx]
+ vys = vys[z_markers_idx]
+ vps = np.column_stack((vxs, vys))
PathCollection.set_offsets(self, vps)
return np.min(vzs) if vzs.size else np.nan
diff --git a/lib/mpl_toolkits/tests/test_mplot3d.py b/lib/mpl_toolkits/tests/test_mplot3d.py
index 37532335e38d..a8d311da2b4f 100644
--- a/lib/mpl_toolkits/tests/test_mplot3d.py
+++ b/lib/mpl_toolkits/tests/test_mplot3d.py
@@ -232,6 +232,14 @@ def test_scatter3d():
z[-1] = 0 # Check that scatter() copies the data.
+def test_scatter3d_nonfilledmarker():
+ # Check that scattering a non-filled marker works
+ fig = plt.figure()
+ ax = fig.add_subplot(111, projection='3d')
+ ax.scatter(np.arange(10), np.arange(10), np.arange(10), marker='x')
+ fig.canvas.draw()
+
+
@mpl3d_image_comparison(['scatter3d_color.png'])
def test_scatter3d_color():
fig = plt.figure()
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