Merge pull request #13549 from anntzer/annotation-some-examples

timhoffm · web-flow · commit a45712e1c909 · 2019-03-01T08:08:11.000+01:00
Simplify some annotation() calls in examples.
diff --git a/examples/lines_bars_and_markers/linestyles.py b/examples/lines_bars_and_markers/linestyles.py
@@ -16,10 +16,9 @@
 """
 import numpy as np
 import matplotlib.pyplot as plt
-from matplotlib.transforms import blended_transform_factory
 
 linestyle_str = [
-     ('solid', 'solid'),       # Same as (0, ()) or '-'
+     ('solid', 'solid'),      # Same as (0, ()) or '-'
      ('dotted', 'dotted'),    # Same as (0, (1, 1)) or '.'
      ('dashed', 'dashed'),    # Same as '--'
      ('dashdot', 'dashdot')]  # Same as '-.'
@@ -55,11 +54,11 @@ def plot_linestyles(ax, linestyles):
 
     # For each line style, add a text annotation with a small offset from
     # the reference point (0 in Axes coords, y tick value in Data coords).
-    reference_transform = blended_transform_factory(ax.transAxes, ax.transData)
     for i, (name, linestyle) in enumerate(linestyles):
-        ax.annotate(repr(linestyle), xy=(0.0, i), xycoords=reference_transform,
-                    xytext=(-6, -12), textcoords='offset points', color="blue",
-                    fontsize=8, ha="right", family="monospace")
+        ax.annotate(repr(linestyle),
+                    xy=(0.0, i), xycoords=ax.get_yaxis_transform(),
+                    xytext=(-6, -12), textcoords='offset points',
+                    color="blue", fontsize=8, ha="right", family="monospace")
 
 
 fig, (ax0, ax1) = plt.subplots(2, 1, gridspec_kw={'height_ratios': [1, 3]},
diff --git a/examples/pie_and_polar_charts/pie_and_donut_labels.py b/examples/pie_and_polar_charts/pie_and_donut_labels.py
@@ -102,7 +102,7 @@ def func(pct, allvals):
 wedges, texts = ax.pie(data, wedgeprops=dict(width=0.5), startangle=-40)
 
 bbox_props = dict(boxstyle="square,pad=0.3", fc="w", ec="k", lw=0.72)
-kw = dict(xycoords='data', textcoords='data', arrowprops=dict(arrowstyle="-"),
+kw = dict(arrowprops=dict(arrowstyle="-"),
           bbox=bbox_props, zorder=0, va="center")
 
 for i, p in enumerate(wedges):
@@ -113,7 +113,7 @@ def func(pct, allvals):
     connectionstyle = "angle,angleA=0,angleB={}".format(ang)
     kw["arrowprops"].update({"connectionstyle": connectionstyle})
     ax.annotate(recipe[i], xy=(x, y), xytext=(1.35*np.sign(x), 1.4*y),
-                 horizontalalignment=horizontalalignment, **kw)
+                horizontalalignment=horizontalalignment, **kw)
 
 ax.set_title("Matplotlib bakery: A donut")
 
diff --git a/examples/showcase/anatomy.py b/examples/showcase/anatomy.py
@@ -125,15 +125,13 @@ def text(x, y, text):
 text(-0.3, 0.45, "Figure")
 
 color = 'blue'
-ax.annotate('Spines', xy=(4.0, 0.35), xycoords='data',
-            xytext=(3.3, 0.5), textcoords='data',
+ax.annotate('Spines', xy=(4.0, 0.35), xytext=(3.3, 0.5),
             weight='bold', color=color,
             arrowprops=dict(arrowstyle='->',
                             connectionstyle="arc3",
                             color=color))
 
-ax.annotate('', xy=(3.15, 0.0), xycoords='data',
-            xytext=(3.45, 0.45), textcoords='data',
+ax.annotate('', xy=(3.15, 0.0), xytext=(3.45, 0.45),
             weight='bold', color=color,
             arrowprops=dict(arrowstyle='->',
                             connectionstyle="arc3",
diff --git a/examples/style_sheets/style_sheets_reference.py b/examples/style_sheets/style_sheets_reference.py
@@ -91,8 +91,8 @@ def plot_histograms(ax, prng, nb_samples=10000):
         ax.hist(values, histtype="stepfilled", bins=30,
                 alpha=0.8, density=True)
     # Add a small annotation.
-    ax.annotate('Annotation', xy=(0.25, 4.25), xycoords='data',
-                xytext=(0.9, 0.9), textcoords='axes fraction',
+    ax.annotate('Annotation', xy=(0.25, 4.25),
+                xytext=(0.9, 0.9), textcoords=ax.transAxes,
                 va="top", ha="right",
                 bbox=dict(boxstyle="round", alpha=0.2),
                 arrowprops=dict(
diff --git a/examples/text_labels_and_annotations/mathtext_examples.py b/examples/text_labels_and_annotations/mathtext_examples.py
@@ -78,8 +78,7 @@ def doall():
     full_demo = mathext_demos[0]
     plt.annotate(full_demo,
                  xy=(0.5, 1. - 0.59 * line_axesfrac),
-                 xycoords='data', color=mpl_orange_rvb, ha='center',
-                 fontsize=20)
+                 color=mpl_orange_rvb, ha='center', fontsize=20)
 
     # Plotting features demonstration formulae
     for i_line in range(1, n_lines):
@@ -92,12 +91,11 @@ def doall():
                          color=fill_color, alpha=0.5)
         plt.annotate(title,
                      xy=(0.07, baseline - 0.3 * line_axesfrac),
-                     xycoords='data', color=mpl_grey_rvb, weight='bold')
+                     color=mpl_grey_rvb, weight='bold')
         demo = mathext_demos[i_line]
         plt.annotate(demo,
                      xy=(0.05, baseline - 0.75 * line_axesfrac),
-                     xycoords='data', color=mpl_grey_rvb,
-                     fontsize=16)
+                     color=mpl_grey_rvb, fontsize=16)
 
     for i in range(n_lines):
         s = mathext_demos[i]
diff --git a/examples/text_labels_and_annotations/usetex_demo.py b/examples/text_labels_and_annotations/usetex_demo.py
@@ -25,8 +25,7 @@
            shadow=True, loc=(0.01, 0.48), handlelength=1.5, fontsize=16)
 
 # the arrow
-plt.annotate("", xy=(-delta / 2., 0.1), xycoords='data',
-             xytext=(delta / 2., 0.1), textcoords='data',
+plt.annotate("", xy=(-delta / 2., 0.1), xytext=(delta / 2., 0.1),
              arrowprops=dict(arrowstyle="<->", connectionstyle="arc3"))
 plt.text(0, 0.1, r'$\delta$',
          {'color': 'black', 'fontsize': 24, 'ha': 'center', 'va': 'center',
