967 lines
31 KiB
Python
967 lines
31 KiB
Python
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from datetime import datetime
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import io
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import warnings
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import numpy as np
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from numpy.testing import assert_almost_equal
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from packaging.version import parse as parse_version
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import pyparsing
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import pytest
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import matplotlib as mpl
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from matplotlib.backend_bases import MouseEvent
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from matplotlib.font_manager import FontProperties
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import matplotlib.patches as mpatches
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import matplotlib.pyplot as plt
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import matplotlib.transforms as mtransforms
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from matplotlib.testing.decorators import check_figures_equal, image_comparison
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from matplotlib.testing._markers import needs_usetex
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from matplotlib.text import Text, Annotation, OffsetFrom
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pyparsing_version = parse_version(pyparsing.__version__)
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@image_comparison(['font_styles'])
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def test_font_styles():
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def find_matplotlib_font(**kw):
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prop = FontProperties(**kw)
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path = findfont(prop, directory=mpl.get_data_path())
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return FontProperties(fname=path)
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from matplotlib.font_manager import FontProperties, findfont
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warnings.filterwarnings(
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'ignore',
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r"findfont: Font family \[u?'Foo'\] not found. Falling back to .",
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UserWarning,
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module='matplotlib.font_manager')
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fig, ax = plt.subplots()
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normal_font = find_matplotlib_font(
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family="sans-serif",
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style="normal",
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variant="normal",
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size=14)
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a = ax.annotate(
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"Normal Font",
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(0.1, 0.1),
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xycoords='axes fraction',
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fontproperties=normal_font)
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assert a.get_fontname() == 'DejaVu Sans'
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assert a.get_fontstyle() == 'normal'
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assert a.get_fontvariant() == 'normal'
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assert a.get_weight() == 'normal'
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assert a.get_stretch() == 'normal'
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bold_font = find_matplotlib_font(
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family="Foo",
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style="normal",
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variant="normal",
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weight="bold",
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stretch=500,
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size=14)
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ax.annotate(
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"Bold Font",
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(0.1, 0.2),
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xycoords='axes fraction',
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fontproperties=bold_font)
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bold_italic_font = find_matplotlib_font(
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family="sans serif",
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style="italic",
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variant="normal",
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weight=750,
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stretch=500,
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size=14)
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ax.annotate(
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"Bold Italic Font",
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(0.1, 0.3),
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xycoords='axes fraction',
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fontproperties=bold_italic_font)
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light_font = find_matplotlib_font(
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family="sans-serif",
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style="normal",
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variant="normal",
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weight=200,
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stretch=500,
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size=14)
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ax.annotate(
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"Light Font",
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(0.1, 0.4),
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xycoords='axes fraction',
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fontproperties=light_font)
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condensed_font = find_matplotlib_font(
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family="sans-serif",
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style="normal",
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variant="normal",
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weight=500,
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stretch=100,
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size=14)
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ax.annotate(
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"Condensed Font",
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(0.1, 0.5),
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xycoords='axes fraction',
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fontproperties=condensed_font)
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ax.set_xticks([])
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ax.set_yticks([])
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@image_comparison(['multiline'])
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def test_multiline():
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plt.figure()
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ax = plt.subplot(1, 1, 1)
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ax.set_title("multiline\ntext alignment")
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plt.text(
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0.2, 0.5, "TpTpTp\n$M$\nTpTpTp", size=20, ha="center", va="top")
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plt.text(
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0.5, 0.5, "TpTpTp\n$M^{M^{M^{M}}}$\nTpTpTp", size=20,
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ha="center", va="top")
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plt.text(
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0.8, 0.5, "TpTpTp\n$M_{q_{q_{q}}}$\nTpTpTp", size=20,
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ha="center", va="top")
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plt.xlim(0, 1)
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plt.ylim(0, 0.8)
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ax.set_xticks([])
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ax.set_yticks([])
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@image_comparison(['multiline2'], style='mpl20')
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def test_multiline2():
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# Remove this line when this test image is regenerated.
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plt.rcParams['text.kerning_factor'] = 6
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fig, ax = plt.subplots()
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ax.set_xlim([0, 1.4])
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ax.set_ylim([0, 2])
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ax.axhline(0.5, color='C2', linewidth=0.3)
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sts = ['Line', '2 Lineg\n 2 Lg', '$\\sum_i x $', 'hi $\\sum_i x $\ntest',
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'test\n $\\sum_i x $', '$\\sum_i x $\n $\\sum_i x $']
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renderer = fig.canvas.get_renderer()
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def draw_box(ax, tt):
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r = mpatches.Rectangle((0, 0), 1, 1, clip_on=False,
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transform=ax.transAxes)
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r.set_bounds(
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tt.get_window_extent(renderer)
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.transformed(ax.transAxes.inverted())
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.bounds)
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ax.add_patch(r)
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horal = 'left'
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for nn, st in enumerate(sts):
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tt = ax.text(0.2 * nn + 0.1, 0.5, st, horizontalalignment=horal,
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verticalalignment='bottom')
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draw_box(ax, tt)
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ax.text(1.2, 0.5, 'Bottom align', color='C2')
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ax.axhline(1.3, color='C2', linewidth=0.3)
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for nn, st in enumerate(sts):
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tt = ax.text(0.2 * nn + 0.1, 1.3, st, horizontalalignment=horal,
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verticalalignment='top')
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draw_box(ax, tt)
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ax.text(1.2, 1.3, 'Top align', color='C2')
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ax.axhline(1.8, color='C2', linewidth=0.3)
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for nn, st in enumerate(sts):
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tt = ax.text(0.2 * nn + 0.1, 1.8, st, horizontalalignment=horal,
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verticalalignment='baseline')
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draw_box(ax, tt)
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ax.text(1.2, 1.8, 'Baseline align', color='C2')
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ax.axhline(0.1, color='C2', linewidth=0.3)
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for nn, st in enumerate(sts):
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tt = ax.text(0.2 * nn + 0.1, 0.1, st, horizontalalignment=horal,
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verticalalignment='bottom', rotation=20)
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draw_box(ax, tt)
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ax.text(1.2, 0.1, 'Bot align, rot20', color='C2')
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@image_comparison(['antialiased.png'], style='mpl20')
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def test_antialiasing():
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mpl.rcParams['text.antialiased'] = False # Passed arguments should override.
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fig = plt.figure(figsize=(5.25, 0.75))
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fig.text(0.3, 0.75, "antialiased", horizontalalignment='center',
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verticalalignment='center', antialiased=True)
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fig.text(0.3, 0.25, r"$\sqrt{x}$", horizontalalignment='center',
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verticalalignment='center', antialiased=True)
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mpl.rcParams['text.antialiased'] = True # Passed arguments should override.
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fig.text(0.7, 0.75, "not antialiased", horizontalalignment='center',
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verticalalignment='center', antialiased=False)
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fig.text(0.7, 0.25, r"$\sqrt{x}$", horizontalalignment='center',
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verticalalignment='center', antialiased=False)
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mpl.rcParams['text.antialiased'] = False # Should not affect existing text.
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def test_afm_kerning():
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fn = mpl.font_manager.findfont("Helvetica", fontext="afm")
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with open(fn, 'rb') as fh:
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afm = mpl._afm.AFM(fh)
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assert afm.string_width_height('VAVAVAVAVAVA') == (7174.0, 718)
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@image_comparison(['text_contains.png'])
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def test_contains():
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fig = plt.figure()
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ax = plt.axes()
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mevent = MouseEvent('button_press_event', fig.canvas, 0.5, 0.5, 1, None)
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xs = np.linspace(0.25, 0.75, 30)
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ys = np.linspace(0.25, 0.75, 30)
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xs, ys = np.meshgrid(xs, ys)
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txt = plt.text(
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0.5, 0.4, 'hello world', ha='center', fontsize=30, rotation=30)
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# uncomment to draw the text's bounding box
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# txt.set_bbox(dict(edgecolor='black', facecolor='none'))
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# draw the text. This is important, as the contains method can only work
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# when a renderer exists.
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fig.canvas.draw()
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for x, y in zip(xs.flat, ys.flat):
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mevent.x, mevent.y = plt.gca().transAxes.transform([x, y])
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contains, _ = txt.contains(mevent)
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color = 'yellow' if contains else 'red'
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# capture the viewLim, plot a point, and reset the viewLim
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vl = ax.viewLim.frozen()
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ax.plot(x, y, 'o', color=color)
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ax.viewLim.set(vl)
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def test_annotation_contains():
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# Check that Annotation.contains looks at the bboxes of the text and the
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# arrow separately, not at the joint bbox.
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fig, ax = plt.subplots()
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ann = ax.annotate(
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"hello", xy=(.4, .4), xytext=(.6, .6), arrowprops={"arrowstyle": "->"})
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fig.canvas.draw() # Needed for the same reason as in test_contains.
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event = MouseEvent(
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"button_press_event", fig.canvas, *ax.transData.transform((.5, .6)))
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assert ann.contains(event) == (False, {})
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@pytest.mark.parametrize('err, xycoords, match', (
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(TypeError, print, "xycoords callable must return a BboxBase or Transform, not a"),
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(TypeError, [0, 0], r"'xycoords' must be an instance of str, tuple"),
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(ValueError, "foo", "'foo' is not a valid coordinate"),
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(ValueError, "foo bar", "'foo bar' is not a valid coordinate"),
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(ValueError, "offset foo", "xycoords cannot be an offset coordinate"),
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(ValueError, "axes foo", "'foo' is not a recognized unit"),
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))
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def test_annotate_errors(err, xycoords, match):
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fig, ax = plt.subplots()
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with pytest.raises(err, match=match):
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ax.annotate('xy', (0, 0), xytext=(0.5, 0.5), xycoords=xycoords)
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fig.canvas.draw()
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@image_comparison(['titles'])
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def test_titles():
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# left and right side titles
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plt.figure()
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ax = plt.subplot(1, 1, 1)
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ax.set_title("left title", loc="left")
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ax.set_title("right title", loc="right")
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ax.set_xticks([])
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ax.set_yticks([])
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@image_comparison(['text_alignment'], style='mpl20')
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def test_alignment():
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plt.figure()
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ax = plt.subplot(1, 1, 1)
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x = 0.1
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for rotation in (0, 30):
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for alignment in ('top', 'bottom', 'baseline', 'center'):
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ax.text(
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x, 0.5, alignment + " Tj", va=alignment, rotation=rotation,
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bbox=dict(boxstyle='round', facecolor='wheat', alpha=0.5))
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ax.text(
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x, 1.0, r'$\sum_{i=0}^{j}$', va=alignment, rotation=rotation)
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x += 0.1
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ax.plot([0, 1], [0.5, 0.5])
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ax.plot([0, 1], [1.0, 1.0])
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ax.set_xlim(0, 1)
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ax.set_ylim(0, 1.5)
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ax.set_xticks([])
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ax.set_yticks([])
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@image_comparison(['axes_titles.png'])
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def test_axes_titles():
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# Related to issue #3327
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plt.figure()
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ax = plt.subplot(1, 1, 1)
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ax.set_title('center', loc='center', fontsize=20, fontweight=700)
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ax.set_title('left', loc='left', fontsize=12, fontweight=400)
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ax.set_title('right', loc='right', fontsize=12, fontweight=400)
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def test_set_position():
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fig, ax = plt.subplots()
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# test set_position
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ann = ax.annotate(
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'test', (0, 0), xytext=(0, 0), textcoords='figure pixels')
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fig.canvas.draw()
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init_pos = ann.get_window_extent(fig.canvas.renderer)
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shift_val = 15
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ann.set_position((shift_val, shift_val))
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fig.canvas.draw()
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post_pos = ann.get_window_extent(fig.canvas.renderer)
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for a, b in zip(init_pos.min, post_pos.min):
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assert a + shift_val == b
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# test xyann
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ann = ax.annotate(
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'test', (0, 0), xytext=(0, 0), textcoords='figure pixels')
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fig.canvas.draw()
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init_pos = ann.get_window_extent(fig.canvas.renderer)
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shift_val = 15
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ann.xyann = (shift_val, shift_val)
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fig.canvas.draw()
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post_pos = ann.get_window_extent(fig.canvas.renderer)
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for a, b in zip(init_pos.min, post_pos.min):
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assert a + shift_val == b
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def test_char_index_at():
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fig = plt.figure()
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text = fig.text(0.1, 0.9, "")
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text.set_text("i")
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bbox = text.get_window_extent()
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size_i = bbox.x1 - bbox.x0
|
||
|
|
|
||
|
|
text.set_text("m")
|
||
|
|
bbox = text.get_window_extent()
|
||
|
|
size_m = bbox.x1 - bbox.x0
|
||
|
|
|
||
|
|
text.set_text("iiiimmmm")
|
||
|
|
bbox = text.get_window_extent()
|
||
|
|
origin = bbox.x0
|
||
|
|
|
||
|
|
assert text._char_index_at(origin - size_i) == 0 # left of first char
|
||
|
|
assert text._char_index_at(origin) == 0
|
||
|
|
assert text._char_index_at(origin + 0.499*size_i) == 0
|
||
|
|
assert text._char_index_at(origin + 0.501*size_i) == 1
|
||
|
|
assert text._char_index_at(origin + size_i*3) == 3
|
||
|
|
assert text._char_index_at(origin + size_i*4 + size_m*3) == 7
|
||
|
|
assert text._char_index_at(origin + size_i*4 + size_m*4) == 8
|
||
|
|
assert text._char_index_at(origin + size_i*4 + size_m*10) == 8
|
||
|
|
|
||
|
|
|
||
|
|
@pytest.mark.parametrize('text', ['', 'O'], ids=['empty', 'non-empty'])
|
||
|
|
def test_non_default_dpi(text):
|
||
|
|
fig, ax = plt.subplots()
|
||
|
|
|
||
|
|
t1 = ax.text(0.5, 0.5, text, ha='left', va='bottom')
|
||
|
|
fig.canvas.draw()
|
||
|
|
dpi = fig.dpi
|
||
|
|
|
||
|
|
bbox1 = t1.get_window_extent()
|
||
|
|
bbox2 = t1.get_window_extent(dpi=dpi * 10)
|
||
|
|
np.testing.assert_allclose(bbox2.get_points(), bbox1.get_points() * 10,
|
||
|
|
rtol=5e-2)
|
||
|
|
# Text.get_window_extent should not permanently change dpi.
|
||
|
|
assert fig.dpi == dpi
|
||
|
|
|
||
|
|
|
||
|
|
def test_get_rotation_string():
|
||
|
|
assert Text(rotation='horizontal').get_rotation() == 0.
|
||
|
|
assert Text(rotation='vertical').get_rotation() == 90.
|
||
|
|
|
||
|
|
|
||
|
|
def test_get_rotation_float():
|
||
|
|
for i in [15., 16.70, 77.4]:
|
||
|
|
assert Text(rotation=i).get_rotation() == i
|
||
|
|
|
||
|
|
|
||
|
|
def test_get_rotation_int():
|
||
|
|
for i in [67, 16, 41]:
|
||
|
|
assert Text(rotation=i).get_rotation() == float(i)
|
||
|
|
|
||
|
|
|
||
|
|
def test_get_rotation_raises():
|
||
|
|
with pytest.raises(ValueError):
|
||
|
|
Text(rotation='hozirontal')
|
||
|
|
|
||
|
|
|
||
|
|
def test_get_rotation_none():
|
||
|
|
assert Text(rotation=None).get_rotation() == 0.0
|
||
|
|
|
||
|
|
|
||
|
|
def test_get_rotation_mod360():
|
||
|
|
for i, j in zip([360., 377., 720+177.2], [0., 17., 177.2]):
|
||
|
|
assert_almost_equal(Text(rotation=i).get_rotation(), j)
|
||
|
|
|
||
|
|
|
||
|
|
@pytest.mark.parametrize("ha", ["center", "right", "left"])
|
||
|
|
@pytest.mark.parametrize("va", ["center", "top", "bottom",
|
||
|
|
"baseline", "center_baseline"])
|
||
|
|
def test_null_rotation_with_rotation_mode(ha, va):
|
||
|
|
fig, ax = plt.subplots()
|
||
|
|
kw = dict(rotation=0, va=va, ha=ha)
|
||
|
|
t0 = ax.text(.5, .5, 'test', rotation_mode='anchor', **kw)
|
||
|
|
t1 = ax.text(.5, .5, 'test', rotation_mode='default', **kw)
|
||
|
|
fig.canvas.draw()
|
||
|
|
assert_almost_equal(t0.get_window_extent(fig.canvas.renderer).get_points(),
|
||
|
|
t1.get_window_extent(fig.canvas.renderer).get_points())
|
||
|
|
|
||
|
|
|
||
|
|
@image_comparison(['text_bboxclip'])
|
||
|
|
def test_bbox_clipping():
|
||
|
|
plt.text(0.9, 0.2, 'Is bbox clipped?', backgroundcolor='r', clip_on=True)
|
||
|
|
t = plt.text(0.9, 0.5, 'Is fancy bbox clipped?', clip_on=True)
|
||
|
|
t.set_bbox({"boxstyle": "round, pad=0.1"})
|
||
|
|
|
||
|
|
|
||
|
|
@image_comparison(['annotation_negative_ax_coords.png'])
|
||
|
|
def test_annotation_negative_ax_coords():
|
||
|
|
fig, ax = plt.subplots()
|
||
|
|
|
||
|
|
ax.annotate('+ pts',
|
||
|
|
xytext=[30, 20], textcoords='axes points',
|
||
|
|
xy=[30, 20], xycoords='axes points', fontsize=32)
|
||
|
|
ax.annotate('- pts',
|
||
|
|
xytext=[30, -20], textcoords='axes points',
|
||
|
|
xy=[30, -20], xycoords='axes points', fontsize=32,
|
||
|
|
va='top')
|
||
|
|
ax.annotate('+ frac',
|
||
|
|
xytext=[0.75, 0.05], textcoords='axes fraction',
|
||
|
|
xy=[0.75, 0.05], xycoords='axes fraction', fontsize=32)
|
||
|
|
ax.annotate('- frac',
|
||
|
|
xytext=[0.75, -0.05], textcoords='axes fraction',
|
||
|
|
xy=[0.75, -0.05], xycoords='axes fraction', fontsize=32,
|
||
|
|
va='top')
|
||
|
|
|
||
|
|
ax.annotate('+ pixels',
|
||
|
|
xytext=[160, 25], textcoords='axes pixels',
|
||
|
|
xy=[160, 25], xycoords='axes pixels', fontsize=32)
|
||
|
|
ax.annotate('- pixels',
|
||
|
|
xytext=[160, -25], textcoords='axes pixels',
|
||
|
|
xy=[160, -25], xycoords='axes pixels', fontsize=32,
|
||
|
|
va='top')
|
||
|
|
|
||
|
|
|
||
|
|
@image_comparison(['annotation_negative_fig_coords.png'])
|
||
|
|
def test_annotation_negative_fig_coords():
|
||
|
|
fig, ax = plt.subplots()
|
||
|
|
|
||
|
|
ax.annotate('+ pts',
|
||
|
|
xytext=[10, 120], textcoords='figure points',
|
||
|
|
xy=[10, 120], xycoords='figure points', fontsize=32)
|
||
|
|
ax.annotate('- pts',
|
||
|
|
xytext=[-10, 180], textcoords='figure points',
|
||
|
|
xy=[-10, 180], xycoords='figure points', fontsize=32,
|
||
|
|
va='top')
|
||
|
|
ax.annotate('+ frac',
|
||
|
|
xytext=[0.05, 0.55], textcoords='figure fraction',
|
||
|
|
xy=[0.05, 0.55], xycoords='figure fraction', fontsize=32)
|
||
|
|
ax.annotate('- frac',
|
||
|
|
xytext=[-0.05, 0.5], textcoords='figure fraction',
|
||
|
|
xy=[-0.05, 0.5], xycoords='figure fraction', fontsize=32,
|
||
|
|
va='top')
|
||
|
|
|
||
|
|
ax.annotate('+ pixels',
|
||
|
|
xytext=[50, 50], textcoords='figure pixels',
|
||
|
|
xy=[50, 50], xycoords='figure pixels', fontsize=32)
|
||
|
|
ax.annotate('- pixels',
|
||
|
|
xytext=[-50, 100], textcoords='figure pixels',
|
||
|
|
xy=[-50, 100], xycoords='figure pixels', fontsize=32,
|
||
|
|
va='top')
|
||
|
|
|
||
|
|
|
||
|
|
def test_text_stale():
|
||
|
|
fig, (ax1, ax2) = plt.subplots(1, 2)
|
||
|
|
plt.draw_all()
|
||
|
|
assert not ax1.stale
|
||
|
|
assert not ax2.stale
|
||
|
|
assert not fig.stale
|
||
|
|
|
||
|
|
txt1 = ax1.text(.5, .5, 'aardvark')
|
||
|
|
assert ax1.stale
|
||
|
|
assert txt1.stale
|
||
|
|
assert fig.stale
|
||
|
|
|
||
|
|
ann1 = ax2.annotate('aardvark', xy=[.5, .5])
|
||
|
|
assert ax2.stale
|
||
|
|
assert ann1.stale
|
||
|
|
assert fig.stale
|
||
|
|
|
||
|
|
plt.draw_all()
|
||
|
|
assert not ax1.stale
|
||
|
|
assert not ax2.stale
|
||
|
|
assert not fig.stale
|
||
|
|
|
||
|
|
|
||
|
|
@image_comparison(['agg_text_clip.png'])
|
||
|
|
def test_agg_text_clip():
|
||
|
|
np.random.seed(1)
|
||
|
|
fig, (ax1, ax2) = plt.subplots(2)
|
||
|
|
for x, y in np.random.rand(10, 2):
|
||
|
|
ax1.text(x, y, "foo", clip_on=True)
|
||
|
|
ax2.text(x, y, "foo")
|
||
|
|
|
||
|
|
|
||
|
|
def test_text_size_binding():
|
||
|
|
mpl.rcParams['font.size'] = 10
|
||
|
|
fp = mpl.font_manager.FontProperties(size='large')
|
||
|
|
sz1 = fp.get_size_in_points()
|
||
|
|
mpl.rcParams['font.size'] = 100
|
||
|
|
|
||
|
|
assert sz1 == fp.get_size_in_points()
|
||
|
|
|
||
|
|
|
||
|
|
@image_comparison(['font_scaling.pdf'])
|
||
|
|
def test_font_scaling():
|
||
|
|
mpl.rcParams['pdf.fonttype'] = 42
|
||
|
|
fig, ax = plt.subplots(figsize=(6.4, 12.4))
|
||
|
|
ax.xaxis.set_major_locator(plt.NullLocator())
|
||
|
|
ax.yaxis.set_major_locator(plt.NullLocator())
|
||
|
|
ax.set_ylim(-10, 600)
|
||
|
|
|
||
|
|
for i, fs in enumerate(range(4, 43, 2)):
|
||
|
|
ax.text(0.1, i*30, f"{fs} pt font size", fontsize=fs)
|
||
|
|
|
||
|
|
|
||
|
|
@pytest.mark.parametrize('spacing1, spacing2', [(0.4, 2), (2, 0.4), (2, 2)])
|
||
|
|
def test_two_2line_texts(spacing1, spacing2):
|
||
|
|
text_string = 'line1\nline2'
|
||
|
|
fig = plt.figure()
|
||
|
|
renderer = fig.canvas.get_renderer()
|
||
|
|
|
||
|
|
text1 = fig.text(0.25, 0.5, text_string, linespacing=spacing1)
|
||
|
|
text2 = fig.text(0.25, 0.5, text_string, linespacing=spacing2)
|
||
|
|
fig.canvas.draw()
|
||
|
|
|
||
|
|
box1 = text1.get_window_extent(renderer=renderer)
|
||
|
|
box2 = text2.get_window_extent(renderer=renderer)
|
||
|
|
|
||
|
|
# line spacing only affects height
|
||
|
|
assert box1.width == box2.width
|
||
|
|
if spacing1 == spacing2:
|
||
|
|
assert box1.height == box2.height
|
||
|
|
else:
|
||
|
|
assert box1.height != box2.height
|
||
|
|
|
||
|
|
|
||
|
|
def test_validate_linespacing():
|
||
|
|
with pytest.raises(TypeError):
|
||
|
|
plt.text(.25, .5, "foo", linespacing="abc")
|
||
|
|
|
||
|
|
|
||
|
|
def test_nonfinite_pos():
|
||
|
|
fig, ax = plt.subplots()
|
||
|
|
ax.text(0, np.nan, 'nan')
|
||
|
|
ax.text(np.inf, 0, 'inf')
|
||
|
|
fig.canvas.draw()
|
||
|
|
|
||
|
|
|
||
|
|
def test_hinting_factor_backends():
|
||
|
|
plt.rcParams['text.hinting_factor'] = 1
|
||
|
|
fig = plt.figure()
|
||
|
|
t = fig.text(0.5, 0.5, 'some text')
|
||
|
|
|
||
|
|
fig.savefig(io.BytesIO(), format='svg')
|
||
|
|
expected = t.get_window_extent().intervalx
|
||
|
|
|
||
|
|
fig.savefig(io.BytesIO(), format='png')
|
||
|
|
# Backends should apply hinting_factor consistently (within 10%).
|
||
|
|
np.testing.assert_allclose(t.get_window_extent().intervalx, expected,
|
||
|
|
rtol=0.1)
|
||
|
|
|
||
|
|
|
||
|
|
@needs_usetex
|
||
|
|
def test_usetex_is_copied():
|
||
|
|
# Indirectly tests that update_from (which is used to copy tick label
|
||
|
|
# properties) copies usetex state.
|
||
|
|
fig = plt.figure()
|
||
|
|
plt.rcParams["text.usetex"] = False
|
||
|
|
ax1 = fig.add_subplot(121)
|
||
|
|
plt.rcParams["text.usetex"] = True
|
||
|
|
ax2 = fig.add_subplot(122)
|
||
|
|
fig.canvas.draw()
|
||
|
|
for ax, usetex in [(ax1, False), (ax2, True)]:
|
||
|
|
for t in ax.xaxis.majorTicks:
|
||
|
|
assert t.label1.get_usetex() == usetex
|
||
|
|
|
||
|
|
|
||
|
|
@needs_usetex
|
||
|
|
def test_single_artist_usetex():
|
||
|
|
# Check that a single artist marked with usetex does not get passed through
|
||
|
|
# the mathtext parser at all (for the Agg backend) (the mathtext parser
|
||
|
|
# currently fails to parse \frac12, requiring \frac{1}{2} instead).
|
||
|
|
fig = plt.figure()
|
||
|
|
fig.text(.5, .5, r"$\frac12$", usetex=True)
|
||
|
|
fig.canvas.draw()
|
||
|
|
|
||
|
|
|
||
|
|
@pytest.mark.parametrize("fmt", ["png", "pdf", "svg"])
|
||
|
|
def test_single_artist_usenotex(fmt):
|
||
|
|
# Check that a single artist can be marked as not-usetex even though the
|
||
|
|
# rcParam is on ("2_2_2" fails if passed to TeX). This currently skips
|
||
|
|
# postscript output as the ps renderer doesn't support mixing usetex and
|
||
|
|
# non-usetex.
|
||
|
|
plt.rcParams["text.usetex"] = True
|
||
|
|
fig = plt.figure()
|
||
|
|
fig.text(.5, .5, "2_2_2", usetex=False)
|
||
|
|
fig.savefig(io.BytesIO(), format=fmt)
|
||
|
|
|
||
|
|
|
||
|
|
@image_comparison(['text_as_path_opacity.svg'])
|
||
|
|
def test_text_as_path_opacity():
|
||
|
|
plt.figure()
|
||
|
|
plt.gca().set_axis_off()
|
||
|
|
plt.text(0.25, 0.25, 'c', color=(0, 0, 0, 0.5))
|
||
|
|
plt.text(0.25, 0.5, 'a', alpha=0.5)
|
||
|
|
plt.text(0.25, 0.75, 'x', alpha=0.5, color=(0, 0, 0, 1))
|
||
|
|
|
||
|
|
|
||
|
|
@image_comparison(['text_as_text_opacity.svg'])
|
||
|
|
def test_text_as_text_opacity():
|
||
|
|
mpl.rcParams['svg.fonttype'] = 'none'
|
||
|
|
plt.figure()
|
||
|
|
plt.gca().set_axis_off()
|
||
|
|
plt.text(0.25, 0.25, '50% using `color`', color=(0, 0, 0, 0.5))
|
||
|
|
plt.text(0.25, 0.5, '50% using `alpha`', alpha=0.5)
|
||
|
|
plt.text(0.25, 0.75, '50% using `alpha` and 100% `color`', alpha=0.5,
|
||
|
|
color=(0, 0, 0, 1))
|
||
|
|
|
||
|
|
|
||
|
|
def test_text_repr():
|
||
|
|
# smoketest to make sure text repr doesn't error for category
|
||
|
|
plt.plot(['A', 'B'], [1, 2])
|
||
|
|
repr(plt.text(['A'], 0.5, 'Boo'))
|
||
|
|
|
||
|
|
|
||
|
|
def test_annotation_update():
|
||
|
|
fig, ax = plt.subplots(1, 1)
|
||
|
|
an = ax.annotate('annotation', xy=(0.5, 0.5))
|
||
|
|
extent1 = an.get_window_extent(fig.canvas.get_renderer())
|
||
|
|
fig.tight_layout()
|
||
|
|
extent2 = an.get_window_extent(fig.canvas.get_renderer())
|
||
|
|
|
||
|
|
assert not np.allclose(extent1.get_points(), extent2.get_points(),
|
||
|
|
rtol=1e-6)
|
||
|
|
|
||
|
|
|
||
|
|
@check_figures_equal(extensions=["png"])
|
||
|
|
def test_annotation_units(fig_test, fig_ref):
|
||
|
|
ax = fig_test.add_subplot()
|
||
|
|
ax.plot(datetime.now(), 1, "o") # Implicitly set axes extents.
|
||
|
|
ax.annotate("x", (datetime.now(), 0.5), xycoords=("data", "axes fraction"),
|
||
|
|
# This used to crash before.
|
||
|
|
xytext=(0, 0), textcoords="offset points")
|
||
|
|
ax = fig_ref.add_subplot()
|
||
|
|
ax.plot(datetime.now(), 1, "o")
|
||
|
|
ax.annotate("x", (datetime.now(), 0.5), xycoords=("data", "axes fraction"))
|
||
|
|
|
||
|
|
|
||
|
|
@image_comparison(['large_subscript_title.png'], style='mpl20')
|
||
|
|
def test_large_subscript_title():
|
||
|
|
# Remove this line when this test image is regenerated.
|
||
|
|
plt.rcParams['text.kerning_factor'] = 6
|
||
|
|
plt.rcParams['axes.titley'] = None
|
||
|
|
|
||
|
|
fig, axs = plt.subplots(1, 2, figsize=(9, 2.5), constrained_layout=True)
|
||
|
|
ax = axs[0]
|
||
|
|
ax.set_title(r'$\sum_{i} x_i$')
|
||
|
|
ax.set_title('New way', loc='left')
|
||
|
|
ax.set_xticklabels([])
|
||
|
|
|
||
|
|
ax = axs[1]
|
||
|
|
ax.set_title(r'$\sum_{i} x_i$', y=1.01)
|
||
|
|
ax.set_title('Old Way', loc='left')
|
||
|
|
ax.set_xticklabels([])
|
||
|
|
|
||
|
|
|
||
|
|
@pytest.mark.parametrize(
|
||
|
|
"x, rotation, halign",
|
||
|
|
[(0.7, 0, 'left'),
|
||
|
|
(0.5, 95, 'left'),
|
||
|
|
(0.3, 0, 'right'),
|
||
|
|
(0.3, 185, 'left')])
|
||
|
|
def test_wrap(x, rotation, halign):
|
||
|
|
fig = plt.figure(figsize=(6, 6))
|
||
|
|
s = 'This is a very long text that should be wrapped multiple times.'
|
||
|
|
text = fig.text(x, 0.7, s, wrap=True, rotation=rotation, ha=halign)
|
||
|
|
fig.canvas.draw()
|
||
|
|
assert text._get_wrapped_text() == ('This is a very long\n'
|
||
|
|
'text that should be\n'
|
||
|
|
'wrapped multiple\n'
|
||
|
|
'times.')
|
||
|
|
|
||
|
|
|
||
|
|
def test_mathwrap():
|
||
|
|
fig = plt.figure(figsize=(6, 4))
|
||
|
|
s = r'This is a very $\overline{\mathrm{long}}$ line of Mathtext.'
|
||
|
|
text = fig.text(0, 0.5, s, size=40, wrap=True)
|
||
|
|
fig.canvas.draw()
|
||
|
|
assert text._get_wrapped_text() == ('This is a very $\\overline{\\mathrm{long}}$\n'
|
||
|
|
'line of Mathtext.')
|
||
|
|
|
||
|
|
|
||
|
|
def test_get_window_extent_wrapped():
|
||
|
|
# Test that a long title that wraps to two lines has the same vertical
|
||
|
|
# extent as an explicit two line title.
|
||
|
|
|
||
|
|
fig1 = plt.figure(figsize=(3, 3))
|
||
|
|
fig1.suptitle("suptitle that is clearly too long in this case", wrap=True)
|
||
|
|
window_extent_test = fig1._suptitle.get_window_extent()
|
||
|
|
|
||
|
|
fig2 = plt.figure(figsize=(3, 3))
|
||
|
|
fig2.suptitle("suptitle that is clearly\ntoo long in this case")
|
||
|
|
window_extent_ref = fig2._suptitle.get_window_extent()
|
||
|
|
|
||
|
|
assert window_extent_test.y0 == window_extent_ref.y0
|
||
|
|
assert window_extent_test.y1 == window_extent_ref.y1
|
||
|
|
|
||
|
|
|
||
|
|
def test_long_word_wrap():
|
||
|
|
fig = plt.figure(figsize=(6, 4))
|
||
|
|
text = fig.text(9.5, 8, 'Alonglineoftexttowrap', wrap=True)
|
||
|
|
fig.canvas.draw()
|
||
|
|
assert text._get_wrapped_text() == 'Alonglineoftexttowrap'
|
||
|
|
|
||
|
|
|
||
|
|
def test_wrap_no_wrap():
|
||
|
|
fig = plt.figure(figsize=(6, 4))
|
||
|
|
text = fig.text(0, 0, 'non wrapped text', wrap=True)
|
||
|
|
fig.canvas.draw()
|
||
|
|
assert text._get_wrapped_text() == 'non wrapped text'
|
||
|
|
|
||
|
|
|
||
|
|
@check_figures_equal(extensions=["png"])
|
||
|
|
def test_buffer_size(fig_test, fig_ref):
|
||
|
|
# On old versions of the Agg renderer, large non-ascii single-character
|
||
|
|
# strings (here, "€") would be rendered clipped because the rendering
|
||
|
|
# buffer would be set by the physical size of the smaller "a" character.
|
||
|
|
ax = fig_test.add_subplot()
|
||
|
|
ax.set_yticks([0, 1])
|
||
|
|
ax.set_yticklabels(["€", "a"])
|
||
|
|
ax.yaxis.majorTicks[1].label1.set_color("w")
|
||
|
|
ax = fig_ref.add_subplot()
|
||
|
|
ax.set_yticks([0, 1])
|
||
|
|
ax.set_yticklabels(["€", ""])
|
||
|
|
|
||
|
|
|
||
|
|
def test_fontproperties_kwarg_precedence():
|
||
|
|
"""Test that kwargs take precedence over fontproperties defaults."""
|
||
|
|
plt.figure()
|
||
|
|
text1 = plt.xlabel("value", fontproperties='Times New Roman', size=40.0)
|
||
|
|
text2 = plt.ylabel("counts", size=40.0, fontproperties='Times New Roman')
|
||
|
|
assert text1.get_size() == 40.0
|
||
|
|
assert text2.get_size() == 40.0
|
||
|
|
|
||
|
|
|
||
|
|
def test_transform_rotates_text():
|
||
|
|
ax = plt.gca()
|
||
|
|
transform = mtransforms.Affine2D().rotate_deg(30)
|
||
|
|
text = ax.text(0, 0, 'test', transform=transform,
|
||
|
|
transform_rotates_text=True)
|
||
|
|
result = text.get_rotation()
|
||
|
|
assert_almost_equal(result, 30)
|
||
|
|
|
||
|
|
|
||
|
|
def test_update_mutate_input():
|
||
|
|
inp = dict(fontproperties=FontProperties(weight="bold"),
|
||
|
|
bbox=None)
|
||
|
|
cache = dict(inp)
|
||
|
|
t = Text()
|
||
|
|
t.update(inp)
|
||
|
|
assert inp['fontproperties'] == cache['fontproperties']
|
||
|
|
assert inp['bbox'] == cache['bbox']
|
||
|
|
|
||
|
|
|
||
|
|
@pytest.mark.parametrize('rotation', ['invalid string', [90]])
|
||
|
|
def test_invalid_rotation_values(rotation):
|
||
|
|
with pytest.raises(
|
||
|
|
ValueError,
|
||
|
|
match=("rotation must be 'vertical', 'horizontal' or a number")):
|
||
|
|
Text(0, 0, 'foo', rotation=rotation)
|
||
|
|
|
||
|
|
|
||
|
|
def test_invalid_color():
|
||
|
|
with pytest.raises(ValueError):
|
||
|
|
plt.figtext(.5, .5, "foo", c="foobar")
|
||
|
|
|
||
|
|
|
||
|
|
@image_comparison(['text_pdf_kerning.pdf'], style='mpl20')
|
||
|
|
def test_pdf_kerning():
|
||
|
|
plt.figure()
|
||
|
|
plt.figtext(0.1, 0.5, "ATATATATATATATATATA", size=30)
|
||
|
|
|
||
|
|
|
||
|
|
def test_unsupported_script(recwarn):
|
||
|
|
fig = plt.figure()
|
||
|
|
fig.text(.5, .5, "\N{BENGALI DIGIT ZERO}")
|
||
|
|
fig.canvas.draw()
|
||
|
|
assert all(isinstance(warn.message, UserWarning) for warn in recwarn)
|
||
|
|
assert (
|
||
|
|
[warn.message.args for warn in recwarn] ==
|
||
|
|
[(r"Glyph 2534 (\N{BENGALI DIGIT ZERO}) missing from current font.",),
|
||
|
|
(r"Matplotlib currently does not support Bengali natively.",)])
|
||
|
|
|
||
|
|
|
||
|
|
# See gh-26152 for more information on this xfail
|
||
|
|
@pytest.mark.xfail(pyparsing_version.release == (3, 1, 0),
|
||
|
|
reason="Error messages are incorrect with pyparsing 3.1.0")
|
||
|
|
def test_parse_math():
|
||
|
|
fig, ax = plt.subplots()
|
||
|
|
ax.text(0, 0, r"$ \wrong{math} $", parse_math=False)
|
||
|
|
fig.canvas.draw()
|
||
|
|
|
||
|
|
ax.text(0, 0, r"$ \wrong{math} $", parse_math=True)
|
||
|
|
with pytest.raises(ValueError, match='Unknown symbol'):
|
||
|
|
fig.canvas.draw()
|
||
|
|
|
||
|
|
|
||
|
|
# See gh-26152 for more information on this xfail
|
||
|
|
@pytest.mark.xfail(pyparsing_version.release == (3, 1, 0),
|
||
|
|
reason="Error messages are incorrect with pyparsing 3.1.0")
|
||
|
|
def test_parse_math_rcparams():
|
||
|
|
# Default is True
|
||
|
|
fig, ax = plt.subplots()
|
||
|
|
ax.text(0, 0, r"$ \wrong{math} $")
|
||
|
|
with pytest.raises(ValueError, match='Unknown symbol'):
|
||
|
|
fig.canvas.draw()
|
||
|
|
|
||
|
|
# Setting rcParams to False
|
||
|
|
with mpl.rc_context({'text.parse_math': False}):
|
||
|
|
fig, ax = plt.subplots()
|
||
|
|
ax.text(0, 0, r"$ \wrong{math} $")
|
||
|
|
fig.canvas.draw()
|
||
|
|
|
||
|
|
|
||
|
|
@image_comparison(['text_pdf_font42_kerning.pdf'], style='mpl20')
|
||
|
|
def test_pdf_font42_kerning():
|
||
|
|
plt.rcParams['pdf.fonttype'] = 42
|
||
|
|
plt.figure()
|
||
|
|
plt.figtext(0.1, 0.5, "ATAVATAVATAVATAVATA", size=30)
|
||
|
|
|
||
|
|
|
||
|
|
@image_comparison(['text_pdf_chars_beyond_bmp.pdf'], style='mpl20')
|
||
|
|
def test_pdf_chars_beyond_bmp():
|
||
|
|
plt.rcParams['pdf.fonttype'] = 42
|
||
|
|
plt.rcParams['mathtext.fontset'] = 'stixsans'
|
||
|
|
plt.figure()
|
||
|
|
plt.figtext(0.1, 0.5, "Mass $m$ \U00010308", size=30)
|
||
|
|
|
||
|
|
|
||
|
|
@needs_usetex
|
||
|
|
def test_metrics_cache():
|
||
|
|
mpl.text._get_text_metrics_with_cache_impl.cache_clear()
|
||
|
|
|
||
|
|
fig = plt.figure()
|
||
|
|
fig.text(.3, .5, "foo\nbar")
|
||
|
|
fig.text(.3, .5, "foo\nbar", usetex=True)
|
||
|
|
fig.text(.5, .5, "foo\nbar", usetex=True)
|
||
|
|
fig.canvas.draw()
|
||
|
|
renderer = fig._get_renderer()
|
||
|
|
ys = {} # mapping of strings to where they were drawn in y with draw_tex.
|
||
|
|
|
||
|
|
def call(*args, **kwargs):
|
||
|
|
renderer, x, y, s, *_ = args
|
||
|
|
ys.setdefault(s, set()).add(y)
|
||
|
|
|
||
|
|
renderer.draw_tex = call
|
||
|
|
fig.canvas.draw()
|
||
|
|
assert [*ys] == ["foo", "bar"]
|
||
|
|
# Check that both TeX strings were drawn with the same y-position for both
|
||
|
|
# single-line substrings. Previously, there used to be an incorrect cache
|
||
|
|
# collision with the non-TeX string (drawn first here) whose metrics would
|
||
|
|
# get incorrectly reused by the first TeX string.
|
||
|
|
assert len(ys["foo"]) == len(ys["bar"]) == 1
|
||
|
|
|
||
|
|
info = mpl.text._get_text_metrics_with_cache_impl.cache_info()
|
||
|
|
# Every string gets a miss for the first layouting (extents), then a hit
|
||
|
|
# when drawing, but "foo\nbar" gets two hits as it's drawn twice.
|
||
|
|
assert info.hits > info.misses
|
||
|
|
|
||
|
|
|
||
|
|
def test_annotate_offset_fontsize():
|
||
|
|
# Test that offset_fontsize parameter works and uses accurate values
|
||
|
|
fig, ax = plt.subplots()
|
||
|
|
text_coords = ['offset points', 'offset fontsize']
|
||
|
|
# 10 points should be equal to 1 fontsize unit at fontsize=10
|
||
|
|
xy_text = [(10, 10), (1, 1)]
|
||
|
|
anns = [ax.annotate('test', xy=(0.5, 0.5),
|
||
|
|
xytext=xy_text[i],
|
||
|
|
fontsize='10',
|
||
|
|
xycoords='data',
|
||
|
|
textcoords=text_coords[i]) for i in range(2)]
|
||
|
|
points_coords, fontsize_coords = [ann.get_window_extent() for ann in anns]
|
||
|
|
fig.canvas.draw()
|
||
|
|
assert str(points_coords) == str(fontsize_coords)
|
||
|
|
|
||
|
|
|
||
|
|
def test_get_set_antialiased():
|
||
|
|
txt = Text(.5, .5, "foo\nbar")
|
||
|
|
assert txt._antialiased == mpl.rcParams['text.antialiased']
|
||
|
|
assert txt.get_antialiased() == mpl.rcParams['text.antialiased']
|
||
|
|
|
||
|
|
txt.set_antialiased(True)
|
||
|
|
assert txt._antialiased is True
|
||
|
|
assert txt.get_antialiased() == txt._antialiased
|
||
|
|
|
||
|
|
txt.set_antialiased(False)
|
||
|
|
assert txt._antialiased is False
|
||
|
|
assert txt.get_antialiased() == txt._antialiased
|
||
|
|
|
||
|
|
|
||
|
|
def test_annotation_antialiased():
|
||
|
|
annot = Annotation("foo\nbar", (.5, .5), antialiased=True)
|
||
|
|
assert annot._antialiased is True
|
||
|
|
assert annot.get_antialiased() == annot._antialiased
|
||
|
|
|
||
|
|
annot2 = Annotation("foo\nbar", (.5, .5), antialiased=False)
|
||
|
|
assert annot2._antialiased is False
|
||
|
|
assert annot2.get_antialiased() == annot2._antialiased
|
||
|
|
|
||
|
|
annot3 = Annotation("foo\nbar", (.5, .5), antialiased=False)
|
||
|
|
annot3.set_antialiased(True)
|
||
|
|
assert annot3.get_antialiased() is True
|
||
|
|
assert annot3._antialiased is True
|
||
|
|
|
||
|
|
annot4 = Annotation("foo\nbar", (.5, .5))
|
||
|
|
assert annot4._antialiased == mpl.rcParams['text.antialiased']
|
||
|
|
|
||
|
|
|
||
|
|
@check_figures_equal(extensions=["png"])
|
||
|
|
def test_annotate_and_offsetfrom_copy_input(fig_test, fig_ref):
|
||
|
|
# Both approaches place the text (10, 0) pixels away from the center of the line.
|
||
|
|
ax = fig_test.add_subplot()
|
||
|
|
l, = ax.plot([0, 2], [0, 2])
|
||
|
|
of_xy = np.array([.5, .5])
|
||
|
|
ax.annotate("foo", textcoords=OffsetFrom(l, of_xy), xytext=(10, 0),
|
||
|
|
xy=(0, 0)) # xy is unused.
|
||
|
|
of_xy[:] = 1
|
||
|
|
ax = fig_ref.add_subplot()
|
||
|
|
l, = ax.plot([0, 2], [0, 2])
|
||
|
|
an_xy = np.array([.5, .5])
|
||
|
|
ax.annotate("foo", xy=an_xy, xycoords=l, xytext=(10, 0), textcoords="offset points")
|
||
|
|
an_xy[:] = 2
|