Mar 27, 2025 · Mar 24, 2025
diff --git a/galleries/examples/text_labels_and_annotations/fancyarrow_demo.py b/galleries/examples/text_labels_and_annotations/fancyarrow_demo.py
 Annotation arrow style reference
 ================================

 Overview of the arrow styles available in `~.Axes.annotate`.
 Overview of the available `.ArrowStyle` settings. These are used for the *arrowstyle*
 parameter of `~.Axes.annotate` and `.FancyArrowPatch`.

 Each style can be configured with a set of parameters, which are stated along with
 their default values.
 """

 import inspect

 import matplotlib.pyplot as plt

 import matplotlib.patchesas mpatches
 from matplotlib.patchesimport ArrowStyle

 styles =mpatches.ArrowStyle.get_styles()
 styles = ArrowStyle.get_styles()
 ncol = 2
 nrow = (len(styles) + 1) // ncol
 axs =(plt.figure(figsize=(4 * ncol, 1 + nrow))
       .add_gridspec(1 + nrow, ncol,
 wspace=0, hspace=0, left=0, right=1, bottom=0, top=1).subplots())
 gridspec_kw =dict(wspace=0, hspace=0.05, left=0, right=1, bottom=0, top=1)
 fig, axs = plt.subplots(1 + nrow, ncol,
   figsize=(4 * ncol, 1 + nrow), gridspec_kw=gridspec_kw)
 for ax in axs.flat:
    ax.set_xlim(-0.5, 4)
    ax.set_xlim(-0.1, 4)
    ax.set_axis_off()
 for ax in axs[0, :]:
    ax.text(-0.25, 0.5, "arrowstyle", size="large", color="tab:blue")
    ax.text(1.25, .5, "default parameters", size="large")
    ax.text(0, 0.5, "arrowstyle", size="large", color="tab:blue")
    ax.text(1.4, .5, "default parameters", size="large")
 for ax, (stylename, stylecls) in zip(axs[1:, :].T.flat, styles.items()):
    # draw dot and annotation with arrowstyle
    l, = ax.plot(1, 0, "o", color="grey")
    ax.annotate(stylename, (1, 0), (0, 0),
                size="large", color="tab:blue",ha="center",va="center",
    l, = ax.plot(1.25, 0, "o", color="darkgrey")
    ax.annotate(stylename, (1.25, 0), (0, 0),
                size="large", color="tab:blue",va="center",family="monospace",
                arrowprops=dict(
                    arrowstyle=stylename, connectionstyle="arc3,rad=-0.05",
                    color="k", shrinkA=5, shrinkB=5, patchB=l,
                    arrowstyle=stylename, connectionstyle="arc3,rad=0",
                    color="black", shrinkA=5, shrinkB=5, patchB=l,
                ),
                bbox=dict(boxstyle="square", fc="w", ec="grey"))
                bbox=dict(boxstyle="square", fc="w", ec="darkgrey"))
    # draw default parameters
    # wrap at every nth comma (n = 1 or 2, depending on text length)
    s = str(inspect.signature(stylecls))[1:-1]
    n = 2 if s.count(',') > 3 else 1
    ax.text(1.25, 0,
    ax.text(1.4, 0,
            re.sub(', ', lambda m, c=itertools.count(1): m.group()
                   if next(c) % n else '\n', s),
            verticalalignment="center")
            verticalalignment="center", color="0.3")

 plt.show()
Original file line number	Diff line number	Diff line change
Expand Up		@@ -3,7 +3,11 @@
		Annotation arrow style reference
		================================

		Overview of the arrow styles available in `~.Axes.annotate`.
		Overview of the available `.ArrowStyle` settings. These are used for the arrowstyle
		parameter of `~.Axes.annotate` and `.FancyArrowPatch`.

		Each style can be configured with a set of parameters, which are stated along with
		their default values.
		"""

		import inspect
Expand All		@@ -12,38 +16,38 @@

		import matplotlib.pyplot as plt

		import matplotlib.patchesas mpatches
		from matplotlib.patchesimport ArrowStyle

		styles =mpatches.ArrowStyle.get_styles()
		styles = ArrowStyle.get_styles()
		ncol = 2
		nrow = (len(styles) + 1) // ncol
		axs =(plt.figure(figsize=(4 * ncol, 1 + nrow))
		.add_gridspec(1 + nrow, ncol,
		wspace=0, hspace=0, left=0, right=1, bottom=0, top=1).subplots())
		gridspec_kw =dict(wspace=0, hspace=0.05, left=0, right=1, bottom=0, top=1)
		fig, axs = plt.subplots(1 + nrow, ncol,
		figsize=(4 * ncol, 1 + nrow), gridspec_kw=gridspec_kw)
		for ax in axs.flat:
		ax.set_xlim(-0.5, 4)
		ax.set_xlim(-0.1, 4)
		ax.set_axis_off()
		for ax in axs[0, :]:
		ax.text(-0.25, 0.5, "arrowstyle", size="large", color="tab:blue")
		ax.text(1.25, .5, "default parameters", size="large")
		ax.text(0, 0.5, "arrowstyle", size="large", color="tab:blue")
		ax.text(1.4, .5, "default parameters", size="large")
		for ax, (stylename, stylecls) in zip(axs[1:, :].T.flat, styles.items()):
		# draw dot and annotation with arrowstyle
		l, = ax.plot(1, 0, "o", color="grey")
		ax.annotate(stylename, (1, 0), (0, 0),
		size="large", color="tab:blue",ha="center",va="center",
		l, = ax.plot(1.25, 0, "o", color="darkgrey")
		ax.annotate(stylename, (1.25, 0), (0, 0),
		size="large", color="tab:blue",va="center",family="monospace",
		arrowprops=dict(
		arrowstyle=stylename, connectionstyle="arc3,rad=-0.05",
		color="k", shrinkA=5, shrinkB=5, patchB=l,
		arrowstyle=stylename, connectionstyle="arc3,rad=0",
		color="black", shrinkA=5, shrinkB=5, patchB=l,
		),
		bbox=dict(boxstyle="square", fc="w", ec="grey"))
		bbox=dict(boxstyle="square", fc="w", ec="darkgrey"))
		# draw default parameters
		# wrap at every nth comma (n = 1 or 2, depending on text length)
		s = str(inspect.signature(stylecls))[1:-1]
		n = 2 if s.count(',') > 3 else 1
		ax.text(1.25, 0,
		ax.text(1.4, 0,
		re.sub(', ', lambda m, c=itertools.count(1): m.group()
		if next(c) % n else '\n', s),
		verticalalignment="center")
		verticalalignment="center", color="0.3")

		plt.show()

Expand Down