Skip to content

Navigation Menu

Sign in
Appearance settings

Search code, repositories, users, issues, pull requests...

Provide feedback

We read every piece of feedback, and take your input very seriously.

Saved searches

Use saved searches to filter your results more quickly
Appearance settings

Commit 668aa49

Browse filesBrowse files
anntzeranntzer
committed
Turn ContourSet into a standard Collection artist.
Keep (some) backcompat by making access to ContourSet.collection trigger the self-replacement of the ContourSet by the old-style list of PathCollections. The baseline images are slighly shifted, but the new images actually look more correct: - contour_corner_mask_False the old implementation would white out some extra L-shaped areas between masked regions (particularly visible in the diff image). - 3d/contour3d: The order of the "contours" on the panes is a bit arbitrary, but note that previously on the left pane the white (medium) contour was drawn first, then overlaid with the blue (low) contour, then overlaid with the red (high) contour; the new image draws the contours more consistently in the order blue/white/red. - 3d/tricontour: The new draw order of the unfilled contours (on the left) is clearly better, with the highest contour (light green) drawn above the lower one (medium green). Limitations: - 3d contours used to rely on being able to set a different sort_zpos for each contour level; this change gets rid of that. Per the above it's not clear this is actually worse in practice...
1 parent e26542a commit 668aa49
Copy full SHA for 668aa49

File tree

Expand file treeCollapse file tree

19 files changed

+536
-379
lines changed
Open diff view settings
Filter options
Expand file treeCollapse file tree

19 files changed

+536
-379
lines changed
Open diff view settings
Collapse file

‎doc/api/next_api_changes/deprecations/25247-AL.rst‎

Copy file name to clipboard
+9Lines changed: 9 additions & 0 deletions
  • Display the source diff
  • Display the rich diff
Original file line numberDiff line numberDiff line change
@@ -0,0 +1,9 @@
1+
``ContourSet.collections``
2+
~~~~~~~~~~~~~~~~~~~~~~~~~~
3+
... is deprecated. `.ContourSet` is now implemented as a single `.Collection` of paths,
4+
each path corresponding to a contour level, possibly including multiple unconnected
5+
components.
6+
7+
During the deprecation period, accessing ``ContourSet.collections`` will revert the
8+
current ContourSet instance to the old object layout, with a separate `.PathCollection`
9+
per contour level.
Collapse file

‎examples/images_contours_and_fields/contour_demo.py‎

Copy file name to clipboardExpand all lines: examples/images_contours_and_fields/contour_demo.py
+3-1Lines changed: 3 additions & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -85,7 +85,9 @@
8585
linewidths=2, extent=(-3, 3, -2, 2))
8686

8787
# Thicken the zero contour.
88-
CS.collections[6].set_linewidth(4)
88+
lws = np.broadcast_to(CS.get_linewidth(), len(levels)).copy()
89+
lws[6] = 4
90+
CS.set_linewidth(lws)
8991

9092
ax.clabel(CS, levels[1::2], # label every second level
9193
inline=True, fmt='%1.1f', fontsize=14)
Collapse file

‎examples/images_contours_and_fields/contour_image.py‎

Copy file name to clipboardExpand all lines: examples/images_contours_and_fields/contour_image.py
+1-3Lines changed: 1 addition & 3 deletions
Original file line numberDiff line numberDiff line change
@@ -56,9 +56,7 @@
5656

5757
# We don't really need dashed contour lines to indicate negative
5858
# regions, so let's turn them off.
59-
60-
for c in cset2.collections:
61-
c.set_linestyle('solid')
59+
cset2.set_linestyle('solid')
6260

6361
# It is easier here to make a separate call to contour than
6462
# to set up an array of colors and linewidths.
Collapse file

‎examples/images_contours_and_fields/contours_in_optimization_demo.py‎

Copy file name to clipboardExpand all lines: examples/images_contours_and_fields/contours_in_optimization_demo.py
+3-7Lines changed: 3 additions & 7 deletions
Original file line numberDiff line numberDiff line change
@@ -17,7 +17,6 @@
1717
`~matplotlib.patheffects.TickedStroke` to illustrate a constraint in
1818
a typical optimization problem, the angle should be set between
1919
zero and 180 degrees.
20-
2120
"""
2221

2322
import matplotlib.pyplot as plt
@@ -48,16 +47,13 @@
4847
ax.clabel(cntr, fmt="%2.1f", use_clabeltext=True)
4948

5049
cg1 = ax.contour(x1, x2, g1, [0], colors='sandybrown')
51-
plt.setp(cg1.collections,
52-
path_effects=[patheffects.withTickedStroke(angle=135)])
50+
cg1.set(path_effects=[patheffects.withTickedStroke(angle=135)])
5351

5452
cg2 = ax.contour(x1, x2, g2, [0], colors='orangered')
55-
plt.setp(cg2.collections,
56-
path_effects=[patheffects.withTickedStroke(angle=60, length=2)])
53+
cg2.set(path_effects=[patheffects.withTickedStroke(angle=60, length=2)])
5754

5855
cg3 = ax.contour(x1, x2, g3, [0], colors='mediumblue')
59-
plt.setp(cg3.collections,
60-
path_effects=[patheffects.withTickedStroke(spacing=7)])
56+
cg3.set(path_effects=[patheffects.withTickedStroke(spacing=7)])
6157

6258
ax.set_xlim(0, 4)
6359
ax.set_ylim(0, 4)
Collapse file

‎examples/misc/patheffect_demo.py‎

Copy file name to clipboardExpand all lines: examples/misc/patheffect_demo.py
+1-2Lines changed: 1 addition & 2 deletions
Original file line numberDiff line numberDiff line change
@@ -29,8 +29,7 @@
2929
ax2.imshow(arr)
3030
cntr = ax2.contour(arr, colors="k")
3131

32-
plt.setp(cntr.collections, path_effects=[
33-
patheffects.withStroke(linewidth=3, foreground="w")])
32+
cntr.set(path_effects=[patheffects.withStroke(linewidth=3, foreground="w")])
3433

3534
clbls = ax2.clabel(cntr, fmt="%2.0f", use_clabeltext=True)
3635
plt.setp(clbls, path_effects=[
Collapse file

‎examples/misc/tickedstroke_demo.py‎

Copy file name to clipboardExpand all lines: examples/misc/tickedstroke_demo.py
+3-6Lines changed: 3 additions & 6 deletions
Original file line numberDiff line numberDiff line change
@@ -89,16 +89,13 @@
8989
ax.clabel(cntr, fmt="%2.1f", use_clabeltext=True)
9090

9191
cg1 = ax.contour(x1, x2, g1, [0], colors='sandybrown')
92-
plt.setp(cg1.collections,
93-
path_effects=[patheffects.withTickedStroke(angle=135)])
92+
cg1.set(path_effects=[patheffects.withTickedStroke(angle=135)])
9493

9594
cg2 = ax.contour(x1, x2, g2, [0], colors='orangered')
96-
plt.setp(cg2.collections,
97-
path_effects=[patheffects.withTickedStroke(angle=60, length=2)])
95+
cg2.set(path_effects=[patheffects.withTickedStroke(angle=60, length=2)])
9896

9997
cg3 = ax.contour(x1, x2, g3, [0], colors='mediumblue')
100-
plt.setp(cg3.collections,
101-
path_effects=[patheffects.withTickedStroke(spacing=7)])
98+
cg3.set(path_effects=[patheffects.withTickedStroke(spacing=7)])
10299

103100
ax.set_xlim(0, 4)
104101
ax.set_ylim(0, 4)
Collapse file

‎lib/matplotlib/axes/_base.py‎

Copy file name to clipboardExpand all lines: lib/matplotlib/axes/_base.py
+1-4Lines changed: 1 addition & 4 deletions
Original file line numberDiff line numberDiff line change
@@ -2179,10 +2179,7 @@ def _sci(self, im):
21792179
_api.check_isinstance(
21802180
(mpl.contour.ContourSet, mcoll.Collection, mimage.AxesImage),
21812181
im=im)
2182-
if isinstance(im, mpl.contour.ContourSet):
2183-
if im.collections[0] not in self._children:
2184-
raise ValueError("ContourSet must be in current Axes")
2185-
elif im not in self._children:
2182+
if im not in self._children:
21862183
raise ValueError("Argument must be an image, collection, or "
21872184
"ContourSet in this Axes")
21882185
self._current_image = im
Collapse file

‎lib/matplotlib/colorbar.py‎

Copy file name to clipboardExpand all lines: lib/matplotlib/colorbar.py
+5-5Lines changed: 5 additions & 5 deletions
Original file line numberDiff line numberDiff line change
@@ -767,15 +767,15 @@ def add_lines(self, *args, **kwargs):
767767
lambda self, levels, colors, linewidths, erase=True: locals()],
768768
self, *args, **kwargs)
769769
if "CS" in params:
770-
self, CS, erase = params.values()
771-
if not isinstance(CS, contour.ContourSet) or CS.filled:
770+
self, cs, erase = params.values()
771+
if not isinstance(cs, contour.ContourSet) or cs.filled:
772772
raise ValueError("If a single artist is passed to add_lines, "
773773
"it must be a ContourSet of lines")
774774
# TODO: Make colorbar lines auto-follow changes in contour lines.
775775
return self.add_lines(
776-
CS.levels,
777-
CS.to_rgba(CS.cvalues, CS.alpha),
778-
[coll.get_linewidths()[0] for coll in CS.collections],
776+
cs.levels,
777+
cs.to_rgba(cs.cvalues, cs.alpha),
778+
cs.get_linewidths(),
779779
erase=erase)
780780
else:
781781
self, levels, colors, linewidths, erase = params.values()

0 commit comments

Comments
0 (0)
Morty Proxy This is a proxified and sanitized view of the page, visit original site.