Revision: 5047
http://matplotlib.svn.sourceforge.net/matplotlib/?rev=5047&view=rev
Author: efiring
Date: 2008-04-18 13:11:03 -0700 (Fri, 18 Apr 2008)
Log Message:
-----------
Improve color handling in collections, fix scatter bug.
Modified Paths:
--------------
trunk/matplotlib/lib/matplotlib/axes.py
trunk/matplotlib/lib/matplotlib/collections.py
trunk/matplotlib/lib/matplotlib/colors.py
Modified: trunk/matplotlib/lib/matplotlib/axes.py
===================================================================
--- trunk/matplotlib/lib/matplotlib/axes.py 2008-04-18 15:20:03 UTC (rev
5046)
+++ trunk/matplotlib/lib/matplotlib/axes.py 2008-04-18 20:11:03 UTC (rev
5047)
@@ -4134,7 +4134,7 @@
"""
SCATTER(x, y, s=20, c='b', marker='o', cmap=None, norm=None,
vmin=None, vmax=None, alpha=1.0, linewidths=None,
- faceted=True, **kwargs)
+ verts=None, **kwargs)
Supported function signatures:
SCATTER(x, y, **kwargs)
@@ -4187,10 +4187,9 @@
angle is the angle of rotation of the symbol
Finally, marker can be (verts, 0), verts is a sequence of (x,y)
- vertices for a custom scatter symbol.
+ vertices for a custom scatter symbol. Alternatively, use the
+ kwarg combination marker=None,verts=verts.
- s is a size argument in points squared.
-
Any or all of x, y, s, and c may be masked arrays, in which
case all masks will be combined and only unmasked points
will be plotted.
@@ -4217,16 +4216,13 @@
required by RegularPolyCollection -- see
collections.RegularPolyCollection for details
- * faceted: if True, will use the default edgecolor for the
- markers. If False, will set the edgecolors to be the same
- as the facecolors.
- This kwarg is deprecated;
- please use the edgecolors kwarg instead:
- shading='flat' --> edgecolors='None'
- shading='faceted --> edgecolors=None
- edgecolors also can be any mpl color or sequence of colors.
+ Optional kwargs control the Collection properties; in
+ particular:
- Optional kwargs control the Collection properties:
+ edgecolors='none' : to plot faces with no outlines
+ facecolors='none' : to plot unfilled outlines
+
+ Here are the standard descriptions of all the Collection kwargs:
%(Collection)s
A Collection instance is returned
@@ -4270,8 +4266,12 @@
else:
scales = s
- if faceted: edgecolors = None
- else: edgecolors = 'None'
+ if faceted:
+ edgecolors = None
+ else:
+ edgecolors = 'none'
+ warnings.warn('''replace "faceted=False" with
"edgecolors='none'"''',
+ DeprecationWarning) #2008/04/18
sym = None
symstyle = 0
Modified: trunk/matplotlib/lib/matplotlib/collections.py
===================================================================
--- trunk/matplotlib/lib/matplotlib/collections.py 2008-04-18 15:20:03 UTC
(rev 5046)
+++ trunk/matplotlib/lib/matplotlib/collections.py 2008-04-18 20:11:03 UTC
(rev 5047)
@@ -77,21 +77,12 @@
artist.Artist.__init__(self)
cm.ScalarMappable.__init__(self, norm, cmap)
- if facecolors is None: facecolors = mpl.rcParams['patch.facecolor']
- if edgecolors is None: edgecolors = mpl.rcParams['patch.edgecolor']
- if linewidths is None: linewidths = (mpl.rcParams['patch.linewidth'],)
- if antialiaseds is None: antialiaseds =
(mpl.rcParams['patch.antialiased'],)
- self.set_linestyles(linestyles)
+ self.set_edgecolor(edgecolors)
+ self.set_facecolor(facecolors)
+ self.set_linewidth(linewidths)
+ self.set_linestyle(linestyles)
+ self.set_antialiased(antialiaseds)
- self._facecolors = _colors.colorConverter.to_rgba_array(facecolors)
- if edgecolors == 'None':
- self._edgecolors = self._facecolors
- linewidths = (0,)
- else:
- self._edgecolors = _colors.colorConverter.to_rgba_array(edgecolors)
- self._linewidths = self._get_value(linewidths)
- self._antialiaseds = self._get_value(antialiaseds)
-
self._uniform_offsets = None
self._offsets = npy.array([], npy.float_)
if offsets is not None:
@@ -118,6 +109,17 @@
raise TypeError('val must be a float or nonzero sequence of floats')
+ def _get_bool(self, val):
+ try: return (bool(val), )
+ except TypeError:
+ if cbook.iterable(val) and len(val):
+ try: bool(val[0])
+ except TypeError: pass # raise below
+ else: return val
+
+ raise TypeError('val must be a bool or nonzero sequence of them')
+
+
def get_paths(self):
raise NotImplementedError
@@ -219,6 +221,7 @@
ACCEPTS: float or sequence of floats
"""
+ if lw is None: lw = mpl.rcParams['patch.linewidth']
self._linewidths = self._get_value(lw)
set_lw = set_linewidth = set_linewidths
@@ -263,6 +266,17 @@
self._linestyles = dashes
set_dashes = set_linestyle = set_linestyles
+ def set_antialiased(self, aa):
+ """
+ Set the antialiasing state for rendering.
+
+ ACCEPTS: Boolean or sequence of booleans
+ """
+ if aa is None:
+ aa = mpl.rcParams['patch.antialiased']
+ self._antialiaseds = self._get_bool(aa)
+ set_antialiaseds = set_antialiased
+
def set_color(self, c):
"""
Set both the edgecolor and the facecolor.
@@ -282,6 +296,7 @@
ACCEPTS: matplotlib color arg or sequence of rgba tuples
"""
+ if c is None: c = mpl.rcParams['patch.facecolor']
self._facecolors = _colors.colorConverter.to_rgba_array(c, self._alpha)
set_facecolors = set_facecolor
@@ -298,16 +313,14 @@
ACCEPTS: matplotlib color arg or sequence of rgba tuples
"""
- if c == 'None':
- self._linewidths = (0.0,)
- self._edgecolors = npy.array([])
- else:
- self._edgecolors = _colors.colorConverter.to_rgba_array(c)
+ if c is None: c = mpl.rcParams['patch.edgecolor']
+ self._edgecolors = _colors.colorConverter.to_rgba_array(c, self._alpha)
+
set_edgecolors = set_edgecolor
def set_alpha(self, alpha):
"""
- Set the alpha tranpancies of the collection. Alpha must be
+ Set the alpha tranparencies of the collection. Alpha must be
a float.
ACCEPTS: float
@@ -316,9 +329,14 @@
except TypeError: raise TypeError('alpha must be a float')
else:
artist.Artist.set_alpha(self, alpha)
- if len(self._facecolors):
+ try:
self._facecolors[:, 3] = alpha
- self._edgecolors[:, 3] = alpha
+ except (AttributeError, TypeError, IndexError):
+ pass
+ try:
+ self._edgecolors[:, 3] = alpha
+ except (AttributeError, TypeError, IndexError):
+ pass
def get_linewidths(self):
return self._linewidths
@@ -334,7 +352,7 @@
from scalar data
"""
if self._A is None: return
- if len(self._A.shape)>1:
+ if self._A.ndim > 1:
raise ValueError('Collections can only map rank 1 arrays')
if len(self._facecolors):
self._facecolors = self.to_rgba(self._A, self._alpha)
Modified: trunk/matplotlib/lib/matplotlib/colors.py
===================================================================
--- trunk/matplotlib/lib/matplotlib/colors.py 2008-04-18 15:20:03 UTC (rev
5046)
+++ trunk/matplotlib/lib/matplotlib/colors.py 2008-04-18 20:11:03 UTC (rev
5047)
@@ -314,8 +314,18 @@
Accepts a single mpl color spec or a sequence of specs.
If the sequence is a list or array, the items are changed in place,
but an array copy is still returned.
+
+ Special case to handle "no color": if c is "none" (case-insensitive),
+ then an empty array will be returned. Same for an empty list.
"""
try:
+ if c.lower() == 'none':
+ return npy.zeros((0,4), dtype=npy.float_)
+ except AttributeError:
+ pass
+ if len(c) == 0:
+ return npy.zeros((0,4), dtype=npy.float_)
+ try:
result = [self.to_rgba(c, alpha)]
except ValueError:
# If c is a list it must be maintained as the same list
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