Revision: 6280
http://matplotlib.svn.sourceforge.net/matplotlib/?rev=6280&view=rev
Author: mmetz_bn
Date: 2008-10-20 07:52:58 +0000 (Mon, 20 Oct 2008)
Log Message:
-----------
Applied scatleg patch
Modified Paths:
--------------
trunk/matplotlib/CHANGELOG
trunk/matplotlib/lib/matplotlib/collections.py
trunk/matplotlib/lib/matplotlib/legend.py
Modified: trunk/matplotlib/CHANGELOG
===================================================================
--- trunk/matplotlib/CHANGELOG 2008-10-19 20:35:21 UTC (rev 6279)
+++ trunk/matplotlib/CHANGELOG 2008-10-20 07:52:58 UTC (rev 6280)
@@ -1,3 +1,6 @@
+2008-10-20 Applied scatleg patch based on ideas and work by Erik
+ Tollerud and Jae-Joon Lee. - MM
+
2008-10-11 Fixed bug in pdf backend: if you pass a file object for
output instead of a filename, e.g. in a wep app, we now
flush the object at the end. - JKS
Modified: trunk/matplotlib/lib/matplotlib/collections.py
===================================================================
--- trunk/matplotlib/lib/matplotlib/collections.py 2008-10-19 20:35:21 UTC
(rev 6279)
+++ trunk/matplotlib/lib/matplotlib/collections.py 2008-10-20 07:52:58 UTC
(rev 6280)
@@ -148,6 +148,12 @@
result = result.inverse_transformed(transData)
return result
+ def get_window_extent(self, renderer):
+ bbox = self.get_datalim(transforms.IdentityTransform())
+ #TODO:check to ensure that this does not fail for
+ #cases other than scatter plot legend
+ return bbox
+
def _prepare_points(self):
"""Point prep for drawing and hit testing"""
@@ -417,7 +423,19 @@
else:
self._edgecolors = self.to_rgba(self._A, self._alpha)
+ def update_from(self, other):
+ 'copy properties from other to self'
+ artist.Artist.update_from(self, other)
+ self._antialiaseds = other._antialiaseds
+ self._edgecolors_original = other._edgecolors_original
+ self._edgecolors = other._edgecolors
+ self._facecolors_original = other._facecolors_original
+ self._facecolors = other._facecolors
+ self._linewidths = other._linewidths
+ self._linestyles = other._linestyles
+ self._pickradius = other._pickradius
+
# these are not available for the object inspector until after the
# class is built so we define an initial set here for the init
# function and they will be overridden after object defn
@@ -690,6 +708,7 @@
"""
Collection.__init__(self,**kwargs)
self._sizes = sizes
+ self._numsides = numsides
self._paths = [self._path_generator(numsides)]
self._rotation = rotation
self.set_transform(transforms.IdentityTransform())
@@ -706,7 +725,16 @@
def get_paths(self):
return self._paths
+ def get_numsides(self):
+ return self._numsides
+ def get_rotation(self):
+ return self._rotation
+
+ def get_sizes(self):
+ return self._sizes
+
+
class StarPolygonCollection(RegularPolyCollection):
"""
Draw a collection of regular stars with *numsides* points."""
Modified: trunk/matplotlib/lib/matplotlib/legend.py
===================================================================
--- trunk/matplotlib/lib/matplotlib/legend.py 2008-10-19 20:35:21 UTC (rev
6279)
+++ trunk/matplotlib/lib/matplotlib/legend.py 2008-10-20 07:52:58 UTC (rev
6280)
@@ -92,8 +92,8 @@
handlelen = None, # the length of the legend lines
handletextsep = None, # the space between the legend line and
legend text
axespad = None, # the border between the axes and
legend edge
-
- shadow = None
+ shadow = None,
+ scatteryoffsets=None,
):
"""
parent # the artist that contains the legend
@@ -105,6 +105,7 @@
pad = 0.2 # the fractional whitespace inside the legend border
markerscale = 0.6 # the relative size of legend markers vs. original
shadow # if True, draw a shadow behind legend
+ scatteryoffsets # a list of yoffsets for scatter symbols in legend
The following dimensions are in axes coords
labelsep = 0.005 # the vertical space between the legend entries
@@ -117,8 +118,10 @@
Artist.__init__(self)
- proplist=[numpoints, pad, borderpad, markerscale, labelsep, handlelen,
handletextsep, axespad, shadow]
- propnames=['numpoints', 'pad', 'borderpad', 'markerscale', 'labelsep',
'handlelen', 'handletextsep', 'axespad', 'shadow']
+ proplist=[numpoints, pad, borderpad, markerscale, labelsep,
+ handlelen, handletextsep, axespad, shadow, scatteryoffsets]
+ propnames=['numpoints', 'pad', 'borderpad', 'markerscale', 'labelsep',
+ 'handlelen', 'handletextsep', 'axespad', 'shadow',
'scatteryoffsets']
for name, value in safezip(propnames,proplist):
if value is None:
value=rcParams["legend."+name]
@@ -134,6 +137,14 @@
self.prop=prop
self.fontsize = self.prop.get_size_in_points()
+ # introduce y-offset for handles of the scatter plot
+ if scatteryoffsets is None:
+ self._scatteryoffsets = np.array([4./8., 5./8., 3./8.])
+ else:
+ self._scatteryoffsets = np.asarray(scatteryoffsets)
+ reps = int(self.numpoints / len(self._scatteryoffsets)) + 1
+ self._scatteryoffsets = np.tile(self._scatteryoffsets,
reps)[:self.numpoints]
+
if isinstance(parent,Axes):
self.isaxes = True
self.set_figure(parent.figure)
@@ -306,15 +317,26 @@
ret.append(legline)
elif isinstance(handle, RegularPolyCollection):
- if self.numpoints == 1:
- xdata = np.array([left])
- p = Rectangle(xy=(min(xdata), y-3/4*HEIGHT),
- width = self.handlelen, height=HEIGHT/2,
- )
- p.set_facecolor(handle._facecolors[0])
- if handle._edgecolors != 'none' and len(handle._edgecolors):
- p.set_edgecolor(handle._edgecolors[0])
- self._set_artist_props(p)
+ # the ydata values set here have no effects as it will
+ # be updated in the _update_positions() method.
+ ydata = (y-HEIGHT/2)*np.ones(np.asarray(xdata_marker).shape,
float)
+
+ size_max, size_min = max(handle.get_sizes()),\
+ min(handle.get_sizes())
+ # we may need to scale these sizes by "markerscale"
+ # attribute. But other handle types does not seem
+ # to care about this attribute and it is currently ignored.
+ sizes = [.5*(size_max+size_min), size_max,
+ size_min]
+
+ p = type(handle)(handle.get_numsides(),
+ rotation=handle.get_rotation(),
+ sizes=sizes,
+ offsets=zip(xdata_marker,ydata),
+ transOffset=self.get_transform())
+
+ p.update_from(handle)
+ p.set_figure(self.figure)
p.set_clip_box(None)
p.set_clip_path(None)
ret.append(p)
@@ -532,6 +554,10 @@
elif isinstance(handle, Rectangle):
handle.set_y(y+1/4*h)
handle.set_height(h/2)
+ elif isinstance(handle,RegularPolyCollection):
+ offsets = handle.get_offsets()
+ offsets[:,1] = y+h*self._scatteryoffsets
+ handle.set_offsets(offsets)
# Set the data for the legend patch
bbox = self._get_handle_text_bbox(renderer)
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