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Merge pull request #1654 from tacaswell/collection_zorder_kwarg

added explicit 'zorder' kwarg to `Colection` and `LineCollection`.
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2 parents e02c375 + bd097a7 commit 06d7f9ca329d9125d51cfd235677a359bd6b201b @dmcdougall dmcdougall committed Jan 14, 2013
Showing with 12 additions and 3 deletions.
  1. +12 −3 lib/matplotlib/collections.py
@@ -49,6 +49,8 @@ class Collection(artist.Artist, cm.ScalarMappable):
* *cmap*: None (optional for
:class:`matplotlib.cm.ScalarMappable`)
* *hatch*: None
+ * *zorder*: 1
+
*offsets* and *transOffset* are used to translate the patch after
rendering (default no offsets). If offset_position is 'screen'
@@ -72,7 +74,7 @@ class Collection(artist.Artist, cm.ScalarMappable):
_transOffset = transforms.IdentityTransform()
_transforms = []
- zorder = 1
+
def __init__(self,
edgecolors=None,
@@ -88,6 +90,7 @@ def __init__(self,
hatch=None,
urls=None,
offset_position='screen',
+ zorder=1,
**kwargs
):
"""
@@ -107,7 +110,8 @@ def __init__(self,
self.set_urls(urls)
self.set_hatch(hatch)
self.set_offset_position(offset_position)
-
+ self.set_zorder(zorder)
+
self._uniform_offsets = None
self._offsets = np.array([], np.float_)
# Force _offsets to be Nx2
@@ -897,7 +901,7 @@ class LineCollection(Collection):
i.e., the properties cycle if the ``len`` of props is less than the
number of segments.
"""
- zorder = 2
+
def __init__(self, segments, # Can be None.
linewidths=None,
@@ -909,6 +913,7 @@ def __init__(self, segments, # Can be None.
norm=None,
cmap=None,
pickradius=5,
+ zorder=2,
**kwargs
):
"""
@@ -959,6 +964,9 @@ def __init__(self, segments, # Can be None.
*pickradius* is the tolerance for mouse clicks picking a line.
The default is 5 pt.
+ *zorder*
+ The zorder of the LineCollection. Default is 2
+
The use of :class:`~matplotlib.cm.ScalarMappable` is optional.
If the :class:`~matplotlib.cm.ScalarMappable` array
:attr:`~matplotlib.cm.ScalarMappable._A` is not None (ie a call to
@@ -987,6 +995,7 @@ def __init__(self, segments, # Can be None.
norm=norm,
cmap=cmap,
pickradius=pickradius,
+ zorder=zorder,
**kwargs)
self.set_segments(segments)

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