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Backport PR #23863 on branch v3.7.x (Add tests for mpl_toolkit anchored artists) #25447

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Merged
merged 1 commit into from
Mar 13, 2023
Merged

Backport PR #23863 on branch v3.7.x (Add tests for mpl_toolkit anchored artists) #25447

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Binary file added ..._toolkits/axes_grid1/tests/baseline_images/test_axes_grid1/anchored_artists.png
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32 changes: 31 additions & 1 deletion lib/mpl_toolkits/axes_grid1/tests/test_axes_grid1.py
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Original file line number Diff line number Diff line change
Expand Up @@ -7,6 +7,7 @@
from matplotlib import _api, cbook
from matplotlib.backend_bases import MouseEvent
from matplotlib.colors import LogNorm
from matplotlib.patches import Circle, Ellipse
from matplotlib.transforms import Bbox, TransformedBbox
from matplotlib.testing.decorators import (
check_figures_equal, image_comparison, remove_ticks_and_titles)
Expand All @@ -16,7 +17,8 @@
host_subplot, make_axes_locatable,
Grid, AxesGrid, ImageGrid)
from mpl_toolkits.axes_grid1.anchored_artists import (
AnchoredSizeBar, AnchoredDirectionArrows)
AnchoredAuxTransformBox, AnchoredDrawingArea, AnchoredEllipse,
AnchoredDirectionArrows, AnchoredSizeBar)
from mpl_toolkits.axes_grid1.axes_divider import (
Divider, HBoxDivider, make_axes_area_auto_adjustable, SubplotDivider,
VBoxDivider)
Expand Down Expand Up @@ -508,6 +510,34 @@ def on_pick(event):
assert small in event_rects


@image_comparison(['anchored_artists.png'], remove_text=True, style='mpl20')
def test_anchored_artists():
fig, ax = plt.subplots(figsize=(3, 3))
ada = AnchoredDrawingArea(40, 20, 0, 0, loc='upper right', pad=0.,
frameon=False)
p1 = Circle((10, 10), 10)
ada.drawing_area.add_artist(p1)
p2 = Circle((30, 10), 5, fc="r")
ada.drawing_area.add_artist(p2)
ax.add_artist(ada)

box = AnchoredAuxTransformBox(ax.transData, loc='upper left')
el = Ellipse((0, 0), width=0.1, height=0.4, angle=30, color='cyan')
box.drawing_area.add_artist(el)
ax.add_artist(box)

ae = AnchoredEllipse(ax.transData, width=0.1, height=0.25, angle=-60,
loc='lower left', pad=0.5, borderpad=0.4,
frameon=True)
ax.add_artist(ae)

asb = AnchoredSizeBar(ax.transData, 0.2, r"0.2 units", loc='lower right',
pad=0.3, borderpad=0.4, sep=4, fill_bar=True,
frameon=False, label_top=True, prop={'size': 20},
size_vertical=0.05, color='green')
ax.add_artist(asb)


def test_hbox_divider():
arr1 = np.arange(20).reshape((4, 5))
arr2 = np.arange(20).reshape((5, 4))
Expand Down