Ensure URLs are stored for plain lines in SVG.

QuLogic · QuLogic · commit eecad372a65b · 2020-05-26T18:20:34.000-04:00
Fixes matplotlib#17336.
diff --git a/lib/matplotlib/lines.py b/lib/matplotlib/lines.py
@@ -761,6 +761,7 @@ def draw(self, renderer):
             if len(tpath.vertices):
                 gc = renderer.new_gc()
                 self._set_gc_clip(gc)
+                gc.set_url(self.get_url())
 
                 lc_rgba = mcolors.to_rgba(self._color, self._alpha)
                 gc.set_foreground(lc_rgba, isRGBA=True)
@@ -787,6 +788,7 @@ def draw(self, renderer):
         if self._marker and self._markersize > 0:
             gc = renderer.new_gc()
             self._set_gc_clip(gc)
+            gc.set_url(self.get_url())
             gc.set_linewidth(self._markeredgewidth)
             gc.set_antialiased(self._antialiased)
 
diff --git a/lib/matplotlib/tests/test_backend_svg.py b/lib/matplotlib/tests/test_backend_svg.py
@@ -220,14 +220,20 @@ def test_url():
     # Test that object url appears in output svg.
 
     fig, ax = plt.subplots()
+
+    # collections
     s = ax.scatter([1, 2, 3], [4, 5, 6])
     s.set_urls(['http://example.com/foo', 'http://example.com/bar', None])
 
+    # Line2D
+    p, = plt.plot([1, 3], [6, 5])
+    p.set_url('http://example.com/baz')
+
     b = BytesIO()
     fig.savefig(b, format='svg')
     b = b.getvalue()
-    assert b'http://example.com/foo' in b
-    assert b'http://example.com/bar' in b
+    for v in [b'foo', b'bar', b'baz']:
+        assert b'http://example.com/' + v in b
 
 
 def test_url_tick():
