8000 MNT: expire ContourSet deprecations · matplotlib/matplotlib@c281412 · GitHub
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MNT: expire ContourSet deprecations
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‎doc/api/next_api_changes/removals/28767-REC.rst

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``ContourSet.collections``
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~~~~~~~~~~~~~~~~~~~~~~~~~~
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... has been removed. `~.ContourSet` is now implemented as a single
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`~.Collection` of paths, each path corresponding to a contour level, possibly
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including multiple unconnected components.
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``ContourSet.antialiased``
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~~~~~~~~~~~~~~~~~~~~~~~~~~
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... has been removed. Use `~.Collection.get_antialiased` or
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`~.Collection.set_antialiased` instead. Note that `~.Collection.get_antialiased`
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returns an array.
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``tcolors`` and ``tlinewidths`` attributes of ``ContourSet``
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~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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... have been removed. Use `~.Collection.get_facecolor`, `~.Collection.get_edgecolor`
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or `~.Collection.get_linewidths` instead.

‎lib/matplotlib/contour.py

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@@ -406,97 +406,6 @@ def interp_vec(x, xp, fp): return [np.interp(x, xp, col) for col in fp.T]
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return angle, Path(xys, codes)
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@_api.deprecated("3.8")
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def calc_label_rot_and_inline(self, slc, ind, lw, lc=None, spacing=5):
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"""
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Calculate the appropriate label rotation given the linecontour
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coordinates in screen units, the index of the label location and the
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label width.
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If *lc* is not None or empty, also break contours and compute
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inlining.
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*spacing* is the empty space to leave around the label, in pixels.
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Both tasks are done together to avoid calculating path lengths
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multiple times, which is relatively costly.
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The method used here involves computing the path length along the
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contour in pixel coordinates and then looking approximately (label
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width / 2) away from central point to determine rotation and then to
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break contour if desired.
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"""
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if lc is None:
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lc = []
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# Half the label width
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hlw = lw / 2.0
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# Check if closed and, if so, rotate contour so label is at edge
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closed = _is_closed_polygon(slc)
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if closed:
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slc = np.concatenate([slc[ind:-1], slc[:ind + 1]])
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if len(lc): # Rotate lc also if not empty
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lc = np.concatenate([lc[ind:-1], lc[:ind + 1]])
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ind = 0
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# Calculate path lengths
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pl = np.zeros(slc.shape[0], dtype=float)
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dx = np.diff(slc, axis=0)
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pl[1:] = np.cumsum(np.hypot(dx[:, 0], dx[:, 1]))
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pl = pl - pl[ind]
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# Use linear interpolation to get points around label
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xi = np.array([-hlw, hlw])
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if closed: # Look at end also for closed contours
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dp = np.array([pl[-1], 0])
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else:
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dp = np.zeros_like(xi)
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# Get angle of vector between the two ends of the label - must be
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# calculated in pixel space for text rotation to work correctly.
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(dx,), (dy,) = (np.diff(np.interp(dp + xi, pl, slc_col))
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for slc_col in slc.T)
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rotation = np.rad2deg(np.arctan2(dy, dx))
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if self.rightside_up:
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# Fix angle so text is never upside-down
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rotation = (rotation + 90) % 180 - 90
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# Break contour if desired
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nlc = []
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if len(lc):
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# Expand range by spacing
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xi = dp + xi + np.array([-spacing, spacing])
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# Get (integer) indices near points of interest; use -1 as marker
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# for out of bounds.
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I = np.interp(xi, pl, np.arange(len(pl)), left=-1, right=-1)
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I = [np.floor(I[0]).astype(int), np.ceil(I[1]).astype(int)]
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if I[0] != -1:
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xy1 = [np.interp(xi[0], pl, lc_col) for lc_col in lc.T]
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if I[1] != -1:
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xy2 = [np.interp(xi[1], pl, lc_col) for lc_col in lc.T]
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# Actually break contours
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if closed:
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# This will remove contour if shorter than label
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if all(i != -1 for i in I):
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nlc.append(np.vstack([xy2, lc[I[1]:I[0]+1], xy1]))
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else:
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# These will remove pieces of contour if they have length zero
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if I[0] != -1:
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nlc.append(np.vstack([lc[:I[0]+1], xy1]))
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if I[1] != -1:
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nlc.append(np.vstack([xy2, lc[I[1]:]]))
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# The current implementation removes contours completely
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# covered by labels. Uncomment line below to keep
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# original contour if this is the preferred behavior.
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# if not len(nlc): nlc = [lc]
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return rotation, nlc
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def add_label(self, x, y, rotation, lev, cvalue):
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"""Add a contour label, respecting whether *use_clabeltext* was set."""
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data_x, data_y = self.axes.transData.inverted().transform((x, y))
@@ -519,12 +428,6 @@ def add_label(self, x, y, rotation, lev, cvalue):
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# Add label to plot here - useful for manual mode label selection
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self.axes.add_artist(t)
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@_api.deprecated("3.8", alternative="add_label")
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def add_label_clabeltext(self, x, y, rotation, lev, cvalue):
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"""Add contour label with `.Text.set_transform_rotates_text`."""
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with cbook._setattr_cm(self, _use_clabeltext=True):
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self.add_label(x, y, rotation, lev, cvalue)
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def add_label_near(self, x, y, inline=True, inline_spacing=5,
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transform=None):
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"""
@@ -906,57 +809,9 @@ def __init__(self, ax, *args,
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allkinds = property(lambda self: [
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[subp.codes for subp in p._iter_connected_components()]
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for p in self.get_paths()])
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tcolors = _api.deprecated("3.8")(property(lambda self: [
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(tuple(rgba),) for rgba in self.to_rgba(self.cvalues, self.alpha)]))
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tlinewidths = _api.deprecated("3.8")(property(lambda self: [
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(w,) for w in self.get_linewidths()]))
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alpha = property(lambda self: self.get_alpha())
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linestyles = property(lambda self: self._orig_linestyles)
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@_api.deprecated("3.8", alternative="set_antialiased or get_antialiased",
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addendum="Note that get_antialiased returns an array.")
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@property
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def antialiased(self):
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return all(self.get_antialiased())
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@antialiased.setter
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def antialiased(self, aa):
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self.set_antialiased(aa)
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@_api.deprecated("3.8")
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@property
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def collections(self):
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# On access, make oneself invisible and instead add the old-style collections
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# (one PathCollection per level). We do not try to further split contours into
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# connected components as we already lost track of what pairs of contours need
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# to be considered as single units to draw filled regions with holes.
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if not hasattr(self, "_old_style_split_collections"):
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self.set_visible(False)
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fcs = self.get_facecolor()
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ecs = self.get_edgecolor()
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lws = self.get_linewidth()
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lss = self.get_linestyle()
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self._old_style_split_collections = []
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for idx, path in enumerate(self._paths):
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pc = mcoll.PathCollection(
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[path] if len(path.vertices) else [],
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alpha=self.get_alpha(),
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antialiaseds=self._antialiaseds[idx % len(self._antialiaseds)],
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transform=self.get_transform(),
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zorder=self.get_zorder(),
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label="_nolegend_",
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facecolor=fcs[idx] if len(fcs) else "none",
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edgecolor=ecs[idx] if len(ecs) else "none",
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linewidths=[lws[idx % len(lws)]],
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linestyles=[lss[idx % len(lss)]],
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)
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if self.filled:
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pc.set(hatch=self.hatches[idx % len(self.hatches)])
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self._old_style_split_collections.append(pc)
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for col in self._old_style_split_collections:
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self.axes.add_collection(col)
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return self._old_style_split_collections
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def get_transform(self):
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"""Return the `.Transform` instance used by this ContourSet."""
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if self._transform is None:

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