8000 Cleanup AnchoredOffsetbox-related demos. · matplotlib/matplotlib@e650590 · GitHub
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Cleanup AnchoredOffsetbox-related demos.
`userdemo/anchored_box0{1,2,3}` are basically subsets of `misc/anchored_artists`. `anchored_box04` is slightly more sophisticated; we may want to also merge it but in a later step. In `anchored_artists`, no need to introduce new subclasses (whose constructor need to support both the kwargs for AnchoredOffsetbox and the kwargs for the child artist); it is simpler to just create an AnchoredOffsetbox and set whatever child artist we want on it.
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‎examples/misc/anchored_artists.py

Lines changed: 25 additions & 59 deletions
Original file line numberDiff line numberDiff line change
@@ -9,76 +9,42 @@
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:doc:`/gallery/axes_grid1/simple_anchored_artists`, but it is
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implemented using only the matplotlib namespace, without the help
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of additional toolkits.
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.. redirect-from:: /gallery/userdemo/anchored_box01
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.. redirect-from:: /gallery/userdemo/anchored_box02
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.. redirect-from:: /gallery/userdemo/anchored_box03
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"""
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from matplotlib import pyplot as plt
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from matplotlib.lines import Line2D
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from matplotlib.patches import Ellipse
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from matplotlib.patches import Circle, Ellipse
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from matplotlib.offsetbox import (
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AnchoredOffsetbox, AuxTransformBox, DrawingArea, TextArea, VPacker)
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class AnchoredText(AnchoredOffsetbox):
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def __init__(self, s, loc, pad=0.4, borderpad=0.5,
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prop=None, frameon=True):
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self.txt = TextArea(s)
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super().__init__(loc, pad=pad, borderpad=borderpad,
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child=self.txt, prop=prop, frameon=frameon)
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def draw_text(ax):
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"""
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Draw a text-box anchored to the upper-left corner of the figure.
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"""
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at = AnchoredText("Figure 1a", loc='upper left', frameon=True)
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at.patch.set_boxstyle("round,pad=0.,rounding_size=0.2")
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ax.add_artist(at)
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class AnchoredDrawingArea(AnchoredOffsetbox):
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def __init__(self, width, height, xdescent, ydescent,
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loc, pad=0.4, borderpad=0.5, prop=None, frameon=True):
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self.da = DrawingArea(width, height, xdescent, ydescent)
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super().__init__(loc, pad=pad, borderpad=borderpad,
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child=self.da, prop=None, frameon=frameon)
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def draw_circle(ax):
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"""
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Draw a circle in axis coordinates
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"""
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from matplotlib.patches import Circle
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ada = AnchoredDrawingArea(20, 20, 0, 0,
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loc='upper right', pad=0., frameon=False)
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p = Circle((10, 10), 10)
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ada.da.add_artist(p)
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ax.add_artist(ada)
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"""Draw a text-box anchored to the upper-left corner of the figure."""
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box = AnchoredOffsetbox(child=TextArea("Figure 1a"),
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loc="upper left", frameon=True)
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box.patch.set_boxstyle("round,pad=0.,rounding_size=0.2")
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ax.add_artist(box)
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class AnchoredEllipse(AnchoredOffsetbox):
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def __init__(self, transform, width, height, angle, loc,
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pad=0.1, borderpad=0.1, prop=None, frameon=True):
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"""
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Draw an ellipse the size in data coordinate of the give axes.
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pad, borderpad in fraction of the legend font size (or prop)
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"""
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self._box = AuxTransformBox(transform)
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self.ellipse = Ellipse((0, 0), width, height, angle)
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self._box.add_artist(self.ellipse)
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super().__init__(loc, pad=pad, borderpad=borderpad,
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child=self._box, prop=prop, frameon=frameon)
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def draw_circles(ax):
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"""Draw circles in axes coordi 8000 nates."""
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box = AnchoredOffsetbox(child=DrawingArea(40, 20, 0, 0),
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loc="upper right", pad=0., frameon=False)
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box.get_child().add_artist(Circle((10, 10), 10, fc="tab:blue"))
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box.get_child().add_artist(Circle((30, 10), 5, fc="tab:red"))
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ax.add_artist(box)
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def draw_ellipse(ax):
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"""
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Draw an ellipse of width=0.1, height=0.15 in data coordinates
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"""
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ae = AnchoredEllipse(ax.transData, width=0.1, height=0.15, angle=0.,
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loc='lower left', pad=0.5, borderpad=0.4,
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frameon=True)
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ax.add_artist(ae)
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"""Draw an ellipse of width=0.1, height=0.15 in data coordinates."""
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box = AnchoredOffsetbox(child=AuxTransformBox(ax.transData),
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loc="lower left", frameon=True)
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box.get_child().add_artist(Ellipse((0, 0), width=0.1, height=0.15))
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ax.add_artist(box)
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class AnchoredSizeBar(AnchoredOffsetbox):
@@ -115,11 +81,11 @@ def draw_sizebar(ax):
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ax.add_artist(asb)
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ax = plt.gca()
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ax.set_aspect(1.)
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fig, ax = plt.subplots()
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ax.set_aspect(1)
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draw_text(ax)
122-
draw_circle(ax)
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draw_circles(ax)
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draw_ellipse(ax)
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draw_sizebar(ax)
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‎examples/userdemo/anchored_box01.py

Lines changed: 0 additions & 18 deletions
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‎examples/userdemo/anchored_box02.py

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‎examples/userdemo/anchored_box03.py

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