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Commit 9134a5c

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rcomerrcomer
committed
Add InsetIndicator artist
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12 files changed

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‎doc/api/index.rst

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@@ -106,6 +106,7 @@ Alphabetical list of modules:
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gridspec_api.rst
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hatch_api.rst
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image_api.rst
109+
inset_api.rst
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layout_engine_api.rst
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legend_api.rst
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legend_handler_api.rst

‎doc/api/inset_api.rst

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********************
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``matplotlib.inset``
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********************
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.. automodule:: matplotlib.inset
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:members:
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:undoc-members:
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:show-inheritance:

‎doc/api/next_api_changes/behavior/27996-REC.rst

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``InsetIndicator`` artist
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~~~~~~~~~~~~~~~~~~~~~~~~~
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`~.Axes.indicate_inset` and `~.Axes.indicate_inset_zoom` now return an instance
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of `~matplotlib.inset.InsetIndicator`. Use the
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`~matplotlib.inset.InsetIndicator.rectangle` and
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`~matplotlib.inset.InsetIndicator.connectors` properties of this artist to
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access the objects that were previously returned directly.

‎doc/users/next_whats_new/inset_indicator.rst

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``InsetIndicator`` artist
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~~~~~~~~~~~~~~~~~~~~~~~~~
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`~.Axes.indicate_inset` and `~.Axes.indicate_inset_zoom` now return an instance
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of `~matplotlib.inset.InsetIndicator` which contains the rectangle and
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connector patches. These patches now update automatically so that
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.. code-block:: python
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ax.indicate_inset_zoom(ax_inset)
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ax_inset.set_xlim(new_lim)
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gives the same result as
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.. code-block:: python
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ax_inset.set_xlim(new_lim)
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ax.indicate_inset_zoom(ax_inset)

‎lib/matplotlib/axes/_axes.py

Copy file name to clipboardExpand all lines: lib/matplotlib/axes/_axes.py
+36-68Lines changed: 36 additions & 68 deletions
Original file line numberDiff line numberDiff line change
@@ -16,6 +16,7 @@
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import matplotlib.contour as mcontour
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import matplotlib.dates # noqa: F401, Register date unit converter as side effect.
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import matplotlib.image as mimage
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import matplotlib.inset as minset
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import matplotlib.legend as mlegend
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import matplotlib.lines as mlines
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import matplotlib.markers as mmarkers
@@ -418,7 +419,7 @@ def inset_axes(self, bounds, *, transform=None, zorder=5, **kwargs):
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return inset_ax
419420

420421
@_docstring.dedent_interpd
421-
def indicate_inset(self, bounds, inset_ax=None, *, transform=None,
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def indicate_inset(self, bounds=None, inset_ax=None, *, transform=None,
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facecolor='none', edgecolor='0.5', alpha=0.5,
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zorder=4.99, **kwargs):
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"""
@@ -432,11 +433,12 @@ def indicate_inset(self, bounds, inset_ax=None, *, transform=None,
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433434
Parameters
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----------
435-
bounds : [x0, y0, width, height]
436+
bounds : [x0, y0, width, height], optional
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Lower-left corner of rectangle to be marked, and its width
437-
and height.
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and height. If not set, the bounds will be calculated from the
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data limits of inset_ax, which must be supplied.
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439-
inset_ax : `.Axes`
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inset_ax : `.Axes`, optional
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An optional inset Axes to draw connecting lines to. Two lines are
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drawn connecting the indicator box to the inset Axes on corners
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chosen so as to not overlap with the indicator box.
@@ -468,15 +470,19 @@ def indicate_inset(self, bounds, inset_ax=None, *, transform=None,
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Returns
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-------
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rectangle_patch : `.patches.Rectangle`
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The indicator frame.
473+
inset_indicator : `.inset.InsetIndicator` artist containing
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connector_lines : 4-tuple of `.patches.ConnectionPatch`
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The four connector lines connecting to (lower_left, upper_left,
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lower_right upper_right) corners of *inset_ax*. Two lines are
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set with visibility to *False*, but the user can set the
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visibility to True if the automatic choice is not deemed correct.
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inset_indicator.rectangle : `.Rectangle`
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The indicator frame.
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inset_indicator.connectors : 4-tuple of `.patches.ConnectionPatch`
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The four connector lines connecting to (lower_left, upper_left,
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lower_right upper_right) corners of *inset_ax*. Two lines are
481+
set with visibility to *False*, but the user can set the
482+
visibility to True if the automatic choice is not deemed correct.
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.. versionchanged:: 3.10
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Previously the rectangle and connectors tuple were returned.
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"""
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# to make the Axes connectors work, we need to apply the aspect to
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# the parent Axes.
@@ -486,51 +492,13 @@ def indicate_inset(self, bounds, inset_ax=None, *, transform=None,
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transform = self.transData
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kwargs.setdefault('label', '_indicate_inset')
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489-
x, y, width, height = bounds
490-
rectangle_patch = mpatches.Rectangle(
491-
(x, y), width, height,
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indicator_patch = minset.InsetIndicator(
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bounds, inset_ax=inset_ax,
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facecolor=facecolor, edgecolor=edgecolor, alpha=alpha,
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zorder=zorder, transform=transform, **kwargs)
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self.add_patch(rectangle_patch)
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496-
connects = []
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if inset_ax is not None:
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# connect the inset_axes to the rectangle
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for xy_inset_ax in [(0, 0), (0, 1), (1, 0), (1, 1)]:
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# inset_ax positions are in axes coordinates
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# The 0, 1 values define the four edges if the inset_ax
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# lower_left, upper_left, lower_right upper_right.
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ex, ey = xy_inset_ax
505-
if self.xaxis.get_inverted():
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ex = 1 - ex
507-
if self.yaxis.get_inverted():
508-
ey = 1 - ey
509-
xy_data = x + ex * width, y + ey * height
510-
p = mpatches.ConnectionPatch(
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xyA=xy_inset_ax, coordsA=inset_ax.transAxes,
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xyB=xy_data, coordsB=self.transData,
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arrowstyle="-", zorder=zorder,
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edgecolor=edgecolor, alpha=alpha)
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connects.append(p)
516-
self.add_patch(p)
517-
518-
# decide which two of the lines to keep visible....
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pos = inset_ax.get_position()
520-
bboxins = pos.transformed(self.figure.transSubfigure)
521-
rectbbox = mtransforms.Bbox.from_bounds(
522-
*bounds
523-
).transformed(transform)
524-
x0 = rectbbox.x0 < bboxins.x0
525-
x1 = rectbbox.x1 < bboxins.x1
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y0 = rectbbox.y0 < bboxins.y0
527-
y1 = rectbbox.y1 < bboxins.y1
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connects[0].set_visible(x0 ^ y0)
529-
connects[1].set_visible(x0 == y1)
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connects[2].set_visible(x1 == y0)
531-
connects[3].set_visible(x1 ^ y1)
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533-
return rectangle_patch, tuple(connects) if connects else None
499+
self.add_artist(indicator_patch)
500+
501+
return indicator_patch
534502

535503
def indicate_inset_zoom(self, inset_ax, **kwargs):
536504
"""
@@ -554,22 +522,22 @@ def indicate_inset_zoom(self, inset_ax, **kwargs):
554522
555523
Returns
556524
-------
557-
rectangle_patch : `.patches.Rectangle`
558-
Rectangle artist.
559-
560-
connector_lines : 4-tuple of `.patches.ConnectionPatch`
561-
Each of four connector lines coming from the rectangle drawn on
562-
this axis, in the order lower left, upper left, lower right,
563-
upper right.
564-
Two are set with visibility to *False*, but the user can
565-
set the visibility to *True* if the automatic choice is not deemed
566-
correct.
525+
inset_indicator : `.inset.InsetIndicator` artist containing
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527+
inset_indicator.rectangle : `.Rectangle`
528+
The indicator frame.
529+
530+
inset_indicator.connectors : 4-tuple of `.patches.ConnectionPatch`
531+
The four connector lines connecting to (lower_left, upper_left,
532+
lower_right upper_right) corners of *inset_ax*. Two lines are
533+
set with visibility to *False*, but the user can set the
534+
visibility to True if the automatic choice is not deemed correct.
535+
536+
.. versionchanged:: 3.10
537+
Previously the rectangle and connectors tuple were returned.
567538
"""
568539

569-
xlim = inset_ax.get_xlim()
570-
ylim = inset_ax.get_ylim()
571-
rect = (xlim[0], ylim[0], xlim[1] - xlim[0], ylim[1] - ylim[0])
572-
return self.indicate_inset(rect, inset_ax, **kwargs)
540+
return self.indicate_inset(None, inset_ax, **kwargs)
573541

574542
@_docstring.dedent_interpd
575543
def secondary_xaxis(self, location, functions=None, *, transform=None, **kwargs):

‎lib/matplotlib/axes/_axes.pyi

Copy file name to clipboardExpand all lines: lib/matplotlib/axes/_axes.pyi
+4-3Lines changed: 4 additions & 3 deletions
Original file line numberDiff line numberDiff line change
@@ -15,6 +15,7 @@ from matplotlib.colors import Colormap, Normalize
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from matplotlib.container import BarContainer, ErrorbarContainer, StemContainer
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from matplotlib.contour import ContourSet, QuadContourSet
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from matplotlib.image import AxesImage, PcolorImage
18+
from matplotlib.inset import InsetIndicator
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from matplotlib.legend import Legend
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from matplotlib.legend_handler import HandlerBase
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from matplotlib.lines import Line2D, AxLine
@@ -74,7 +75,7 @@ class Axes(_AxesBase):
7475
) -> Axes: ...
7576
def indicate_inset(
7677
self,
77-
bounds: tuple[float, float, float, float],
78+
bounds: tuple[float, float, float, float] | None = ...,
7879
inset_ax: Axes | None = ...,
7980
*,
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transform: Transform | None = ...,
@@ -83,8 +84,8 @@ class Axes(_AxesBase):
8384
alpha: float = ...,
8485
zorder: float = ...,
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**kwargs
86-
) -> Rectangle: ...
87-
def indicate_inset_zoom(self, inset_ax: Axes, **kwargs) -> Rectangle: ...
87+
) -> InsetIndicator: ...
88+
def indicate_inset_zoom(self, inset_ax: Axes, **kwargs) -> InsetIndicator: ...
8889
def secondary_xaxis(
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self,
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location: Literal["top", "bottom"] | float,

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