Merge pull request #12710 from meeseeksmachine/auto-backport-of-pr-12709-on-v3.0.x

dstansby · web-flow · commit 854a85aaaaf8 · 2018-11-02T16:02:28.000+01:00
Backport PR #12709 on branch v3.0.x (Correctly remove nans when drawing paths with pycairo.)
diff --git a/lib/matplotlib/backends/backend_cairo.py b/lib/matplotlib/backends/backend_cairo.py
@@ -90,7 +90,8 @@ def buffer_info(self):
 
 def _append_paths_slow(ctx, paths, transforms, clip=None):
     for path, transform in zip(paths, transforms):
-        for points, code in path.iter_segments(transform, clip=clip):
+        for points, code in path.iter_segments(
+                transform, remove_nans=True, clip=clip):
             if code == Path.MOVETO:
                 ctx.move_to(*points)
             elif code == Path.CLOSEPOLY:
@@ -118,7 +119,7 @@ def _append_paths_fast(ctx, paths, transforms, clip=None):
     # Convert curves to segment, so that 1. we don't have to handle
     # variable-sized CURVE-n codes, and 2. we don't have to implement degree
     # elevation for quadratic Beziers.
-    cleaneds = [path.cleaned(transform=transform, clip=clip, curves=False)
+    cleaneds = [path.cleaned(transform, remove_nans=True, clip=clip)
                 for path, transform in zip(paths, transforms)]
     vertices = np.concatenate([cleaned.vertices for cleaned in cleaneds])
     codes = np.concatenate([cleaned.codes for cleaned in cleaneds])
