contains() was relying on some attributes being set by draw(). Add code to make contains() not cause a traceback if draw() has not been called.

dopplershift · dopplershift · commit 85ebe51fa292 · 2010-10-06T16:03:48.000Z
svn path=/trunk/matplotlib/; revision=8730
diff --git a/lib/matplotlib/lines.py b/lib/matplotlib/lines.py
@@ -248,6 +248,7 @@ def __init__(self, xdata, ydata,
         # chance to init axes (and hence unit support)
         self.update(kwargs)
         self.pickradius = pickradius
+        self.ind_offset = 0
         if is_numlike(self._picker):
             self.pickradius = self._picker
 
@@ -283,6 +284,8 @@ def contains(self, mouseevent):
         if len(self._xy)==0: return False,{}
 
         # Convert points to pixels
+        if self._transformed_path is None:
+            self._transform_path()
         path, affine = self._transformed_path.get_transformed_path_and_affine()
         path = affine.transform_path(path)
         xy = path.vertices
