matplotlib
diff --git a/‎lib/matplotlib/tests/test_polar.py
Copy file name to clipboardExpand all lines: lib/matplotlib/tests/test_polar.py
+23Lines changed: 23 additions & 0 deletions b/‎lib/matplotlib/tests/test_polar.py
Copy file name to clipboardExpand all lines: lib/matplotlib/tests/test_polar.py
+23Lines changed: 23 additions & 0 deletions
@@ -427,3 +427,26 @@ def test_cursor_precision():
     assert ax.format_coord(2, 0) == "θ=0.6π (115°), r=0.000"
     assert ax.format_coord(2, .1) == "θ=0.64π (115°), r=0.100"
     assert ax.format_coord(2, 1) == "θ=0.637π (114.6°), r=1.000"
+
+@check_figures_equal(extensions=["png"])
+def test_polar_lim_draw(fig_test, fig_ref):
+    """
+    Check that lines on polar axes are correctly transformed after
+    a draw and an axes limit change.
+
+    """
+    # A quarter arc at r=5
+    theta = np.linspace(0, np.pi/2, 90)
+    r = np.full(90, 5)
+
+    ax_ref = fig_ref.add_subplot(projection='polar')
+    ax_ref.set_ylim(0, 10)
+    ax_ref.plot(theta, r)
+
+    ax_test = fig_test.add_subplot(projection='polar')
+    ax_test.set_ylim(4, 10)
+
+    ax_test.plot(theta, r)
+    fig_test.canvas.draw()
+
+    ax_test.set_ylim(0, 10)