Revision: 8278
http://matplotlib.svn.sourceforge.net/matplotlib/?rev=8278&view=rev
Author: efiring
Date: 2010-04-27 20:30:53 +0000 (Tue, 27 Apr 2010)
Log Message:
-----------
contouring: fix various bugs
Modified Paths:
--------------
trunk/matplotlib/examples/pylab_examples/contour_image.py
trunk/matplotlib/lib/matplotlib/contour.py
trunk/matplotlib/lib/mpl_toolkits/mplot3d/axes3d.py
Modified: trunk/matplotlib/examples/pylab_examples/contour_image.py
===================================================================
--- trunk/matplotlib/examples/pylab_examples/contour_image.py 2010-04-27
19:39:27 UTC (rev 8277)
+++ trunk/matplotlib/examples/pylab_examples/contour_image.py 2010-04-27
20:30:53 UTC (rev 8278)
@@ -67,7 +67,7 @@
imshow(Z, extent=extent)
v = axis()
-contour(Z, cset3.levels, hold='on', colors = 'k',
+contour(Z, levels, hold='on', colors = 'k',
origin='upper', extent=extent)
axis(v)
title("Image, origin 'upper'")
@@ -76,7 +76,7 @@
imshow(Z, origin='lower', extent=extent)
v = axis()
-contour(Z, cset3.levels, hold='on', colors = 'k',
+contour(Z, levels, hold='on', colors = 'k',
origin='lower', extent=extent)
axis(v)
title("Image, origin 'lower'")
@@ -91,7 +91,7 @@
# domain that is contoured does not extend beyond these pixel centers.
im = imshow(Z, interpolation='nearest', extent=extent)
v = axis()
-contour(Z, cset3.levels, hold='on', colors = 'k',
+contour(Z, levels, hold='on', colors = 'k',
origin='image', extent=extent)
axis(v)
ylim = get(gca(), 'ylim')
Modified: trunk/matplotlib/lib/matplotlib/contour.py
===================================================================
--- trunk/matplotlib/lib/matplotlib/contour.py 2010-04-27 19:39:27 UTC (rev
8277)
+++ trunk/matplotlib/lib/matplotlib/contour.py 2010-04-27 20:30:53 UTC (rev
8278)
@@ -147,7 +147,7 @@
if len(args) == 0:
levels = self.levels
- indices = range(len(self.levels))
+ indices = range(len(levels))
elif len(args) == 1:
levlabs = list(args[0])
indices, levels = [], []
@@ -674,7 +674,10 @@
self._process_levels()
if self.colors is not None:
- cmap = colors.ListedColormap(self.colors, N=len(self.layers))
+ ncolors = len(self.levels)
+ if self.filled:
+ ncolors -= 1
+ cmap = colors.ListedColormap(self.colors, N=ncolors)
if self.filled:
self.collections = cbook.silent_list('collections.PathCollection')
else:
@@ -772,7 +775,7 @@
havelimits = True
if havelimits:
self.ax.update_datalim([min, max])
- self.ax.autoscale_view()
+ self.ax.autoscale_view(tight=True)
def _get_allsegs_and_allkinds(self):
"""
@@ -881,13 +884,15 @@
self.vmin = 2 * self.levels[0] - self.levels[1]
if self.extend in ('both', 'max'):
self.vmax = 2 * self.levels[-1] - self.levels[-2]
- self.layers = self._levels # contour: a line is a thin layer
if self.filled:
self.layers = 0.5 * (self._levels[:-1] + self._levels[1:])
if self.extend in ('both', 'min'):
self.layers[0] = 0.5 * (self.vmin + self._levels[1])
if self.extend in ('both', 'max'):
self.layers[-1] = 0.5 * (self.vmax + self._levels[-2])
+ else:
+ self.layers = self.levels # contour: a line is a thin layer
+ # Use only original levels--no extended levels
def _process_colors(self):
"""
@@ -903,11 +908,13 @@
"""
self.monochrome = self.cmap.monochrome
if self.colors is not None:
- i0, i1 = 0, len(self.layers)
+ i0, i1 = 0, len(self.levels)
+ if self.filled:
+ i1 -= 1
if self.extend in ('both', 'min'):
i0 = -1
if self.extend in ('both', 'max'):
- i1 = i1 + 1
+ i1 += 1
self.cvalues = range(i0, i1)
self.set_norm(colors.NoNorm())
else:
@@ -944,8 +951,9 @@
tlinestyles = ['solid'] * Nlev
if self.monochrome:
neg_ls = mpl.rcParams['contour.negative_linestyle']
+ eps = - (self.zmax - self.zmin) * 1e-15
for i, lev in enumerate(self.levels):
- if lev < 0.0:
+ if lev < eps:
tlinestyles[i] = neg_ls
else:
if cbook.is_string_like(linestyles):
@@ -1073,6 +1081,8 @@
C = args[0].Cntr
if self.levels is None:
self.levels = args[0].levels
+ self.zmin = args[0].zmin
+ self.zmax = args[0].zmax
else:
x, y, z = self._contour_args(args, kwargs)
@@ -1081,7 +1091,7 @@
y0 = ma.minimum(y)
y1 = ma.maximum(y)
self.ax.update_datalim([(x0,y0), (x1,y1)])
- self.ax.autoscale_view()
+ self.ax.autoscale_view(tight=True)
_mask = ma.getmask(z)
if _mask is ma.nomask:
_mask = None
Modified: trunk/matplotlib/lib/mpl_toolkits/mplot3d/axes3d.py
===================================================================
--- trunk/matplotlib/lib/mpl_toolkits/mplot3d/axes3d.py 2010-04-27 19:39:27 UTC
(rev 8277)
+++ trunk/matplotlib/lib/mpl_toolkits/mplot3d/axes3d.py 2010-04-27 20:30:53 UTC
(rev 8278)
@@ -201,7 +201,7 @@
# Let autoscale_view figure out how to use this data.
self.autoscale_view()
- def autoscale_view(self, scalex=True, scaley=True, scalez=True):
+ def autoscale_view(self, scalex=True, scaley=True, scalez=True, **kw):
# This method looks at the rectanglular volume (see above)
# of data and decides how to scale the view portal to fit it.
@@ -284,19 +284,19 @@
if elev or azim are None (default), then the initial value
is used which was specified in the :class:`Axes3D` constructor.
"""
-
+
self.dist = 10
-
+
if elev is None:
self.elev = self.initial_elev
else:
self.elev = elev
-
+
if azim is None:
self.azim = self.initial_azim
else:
self.azim = azim
-
+
def get_proj(self):
"""Create the projection matrix from the current viewing
position.
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