diff --git a/doc/devel/testing.rst b/doc/devel/testing.rst index 15e73514e8ff..1fef85260b12 100644 --- a/doc/devel/testing.rst +++ b/doc/devel/testing.rst @@ -163,9 +163,10 @@ the tests, they should now pass. It is preferred that new tests use ``style='mpl20'`` as this leads to smaller figures and reflects the newer look of default Matplotlib plots. Also, if the -texts (labels, tick labels, etc) are not really part of what is tested, use -``remove_text=True`` as this will lead to smaller figures and reduce possible -issues with font mismatch on different platforms. +texts (labels, tick labels, etc) are not really part of what is tested, use the +``remove_text=True`` argument or add the ``text_placeholders`` fixture as this +will lead to smaller figures and reduce possible issues with font mismatch on +different platforms. Compare two methods of creating an image diff --git a/lib/matplotlib/testing/conftest.py b/lib/matplotlib/testing/conftest.py index 3f96de611195..2961e7f02f3f 100644 --- a/lib/matplotlib/testing/conftest.py +++ b/lib/matplotlib/testing/conftest.py @@ -125,3 +125,54 @@ def test_imshow_xarray(xr): xr = pytest.importorskip('xarray') return xr + + +@pytest.fixture +def text_placeholders(monkeypatch): + """ + Replace texts with placeholder rectangles. + + The rectangle size only depends on the font size and the number of characters. It is + thus insensitive to font properties and rendering details. This should be used for + tests that depend on text geometries but not the actual text rendering, e.g. layout + tests. + """ + from matplotlib.patches import Rectangle + + def patched_get_text_metrics_with_cache(renderer, text, fontprop, ismath, dpi): + """ + Replace ``_get_text_metrics_with_cache`` with fixed results. + + The usual ``renderer.get_text_width_height_descent`` would depend on font + metrics; instead the fixed results are based on font size and the length of the + string only. + """ + # While get_window_extent returns pixels and font size is in points, font size + # includes ascenders and descenders. Leaving out this factor and setting + # descent=0 ends up with a box that is relatively close to DejaVu Sans. + height = fontprop.get_size() + width = len(text) * height / 1.618 # Golden ratio for character size. + descent = 0 + return width, height, descent + + def patched_text_draw(self, renderer): + """ + Replace ``Text.draw`` with a fixed bounding box Rectangle. + + The bounding box corresponds to ``Text.get_window_extent``, which ultimately + depends on the above patched ``_get_text_metrics_with_cache``. + """ + if renderer is not None: + self._renderer = renderer + if not self.get_visible(): + return + if self.get_text() == '': + return + bbox = self.get_window_extent() + rect = Rectangle(bbox.p0, bbox.width, bbox.height, + facecolor=self.get_color(), edgecolor='none') + rect.draw(renderer) + + monkeypatch.setattr('matplotlib.text._get_text_metrics_with_cache', + patched_get_text_metrics_with_cache) + monkeypatch.setattr('matplotlib.text.Text.draw', patched_text_draw) diff --git a/lib/matplotlib/testing/conftest.pyi b/lib/matplotlib/testing/conftest.pyi index 2af0eb93cc8a..f5d90bc88f73 100644 --- a/lib/matplotlib/testing/conftest.pyi +++ b/lib/matplotlib/testing/conftest.pyi @@ -10,3 +10,5 @@ def mpl_test_settings(request: pytest.FixtureRequest) -> None: ... def pd() -> ModuleType: ... @pytest.fixture def xr() -> ModuleType: ... +@pytest.fixture +def text_placeholders(monkeypatch: pytest.MonkeyPatch) -> None: ... diff --git a/lib/matplotlib/tests/baseline_images/test_constrainedlayout/constrained_layout1.png b/lib/matplotlib/tests/baseline_images/test_constrainedlayout/constrained_layout1.png index 25eade2b6297..bfbbfd6f7eeb 100644 Binary files a/lib/matplotlib/tests/baseline_images/test_constrainedlayout/constrained_layout1.png and b/lib/matplotlib/tests/baseline_images/test_constrainedlayout/constrained_layout1.png differ diff --git a/lib/matplotlib/tests/baseline_images/test_constrainedlayout/constrained_layout10.png 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- - - - - +"/> - - - - + - - - - - - - - - - +"/> - - - - - - + + + + + + + + + + + + + + + + - - - - - - - - +"/> - - + + diff --git a/lib/matplotlib/tests/baseline_images/test_tightlayout/tight_layout2.pdf b/lib/matplotlib/tests/baseline_images/test_tightlayout/tight_layout2.pdf index e26705d0038a..a70180a9192c 100644 Binary files a/lib/matplotlib/tests/baseline_images/test_tightlayout/tight_layout2.pdf and b/lib/matplotlib/tests/baseline_images/test_tightlayout/tight_layout2.pdf differ diff --git a/lib/matplotlib/tests/baseline_images/test_tightlayout/tight_layout2.png b/lib/matplotlib/tests/baseline_images/test_tightlayout/tight_layout2.png index 5197602445ae..b690212612b8 100644 Binary files a/lib/matplotlib/tests/baseline_images/test_tightlayout/tight_layout2.png and b/lib/matplotlib/tests/baseline_images/test_tightlayout/tight_layout2.png differ diff --git a/lib/matplotlib/tests/baseline_images/test_tightlayout/tight_layout2.svg b/lib/matplotlib/tests/baseline_images/test_tightlayout/tight_layout2.svg index 2075eca4868f..2617cd5c2495 100644 --- a/lib/matplotlib/tests/baseline_images/test_tightlayout/tight_layout2.svg +++ b/lib/matplotlib/tests/baseline_images/test_tightlayout/tight_layout2.svg @@ -1,16 +1,16 @@ - + - 2024-07-07T03:48:17.981141 + 2025-04-09T03:27:52.212752 image/svg+xml - Matplotlib v0.1.0.dev50519+g9c53d4f.d20240707, https://matplotlib.org/ + Matplotlib v3.11.0.dev647+g7c466f9a72.d20250409, https://matplotlib.org/ @@ -21,1098 +21,648 @@ - - - - - - - - - - - - - - - - - - - - - - - - - - + - + - + - - - - - + - - - - - - +"/> - - - - - - + - + - - - - - + - - - - - +"/> - - - - - - + - + - - - - - + - - - - - +"/> - - - - - - - + - - - - - - - - - - - - +"/> - - - - - - - - - + - + - + - - - - - - - + + - - - - - - + - + - - - - - - - + + - - - - - - + - + - - - - - + - - - - - +"/> - - - - - + - - - - - - - - - +"/> - - - - - - - - - - - - - - + + - - - - + + - - + + - - + + - - + + - - + + - - + + + + - - - - - - + - + - - - - - - - + + - - - - - - + - + - - - - - - - + + - - - - - - + - + - - - - - - - + + - - - - - - - - - - - + + - - - - - - + - + - - - - - - - + + - - - - - - + - + - - - - - - - + + - - - - - - + - + - - - - - - - + + - - - - - - - - - - - + + - - - - - - - - - + + + + + + + + + + + + + + + + + - - + - - - - - - - - - - - - - - - - - - - - - + - + - - - - - - - + + - - - - - - + - + - - - - - - - + + - - - - - - + - + - - - - - - - + + - - - - - - - - - - - + + - - - - - - + - + - - - - - - - + + - - - - - - + - + - - - - - - - + + - - - - - - + - - - - - - - - - + - - - - - - - - - - - + + - - - - - - - - - - + + + + + + + + + + + + + + + + + + + + + - - + - - - - - - - - - - - - - - - - - - - - - + - + - - - - - - - + + - - - - - - + - + - - - - - - - + + - - - - - - + - + - - - - - - - + + - - - - - - - - - - - + + - - - - - - + - + - - - - - - - + + - - - - - - + - + - - - - - - - + + - + - + - - - - - - - - - - - - - - - - - - - - - - - - + + - - - - - - - - - - + + + + + + + + + + + + + + + + + + + + + - - + + - - + + - - + + - - + + diff --git a/lib/matplotlib/tests/baseline_images/test_tightlayout/tight_layout3.pdf b/lib/matplotlib/tests/baseline_images/test_tightlayout/tight_layout3.pdf index 5d386cc05fe3..c5307c13d72f 100644 Binary files a/lib/matplotlib/tests/baseline_images/test_tightlayout/tight_layout3.pdf and b/lib/matplotlib/tests/baseline_images/test_tightlayout/tight_layout3.pdf differ diff --git a/lib/matplotlib/tests/baseline_images/test_tightlayout/tight_layout3.png b/lib/matplotlib/tests/baseline_images/test_tightlayout/tight_layout3.png index d6428c63e39f..fe5d3a483670 100644 Binary files a/lib/matplotlib/tests/baseline_images/test_tightlayout/tight_layout3.png and b/lib/matplotlib/tests/baseline_images/test_tightlayout/tight_layout3.png differ diff --git a/lib/matplotlib/tests/baseline_images/test_tightlayout/tight_layout3.svg b/lib/matplotlib/tests/baseline_images/test_tightlayout/tight_layout3.svg index 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+ - - - - - - + - + - - - - - - - + + - - - - - - - - - - - + + - - - - - - + - + - - - - - - - + + - - - - - - + - + - - - - - - - + + - - - - - - + - + - - - - - - - + + - - - - - - - - - - - + + - - - - - - - - - + + - - - - + + - - + + - - + + - - + + - - + + - - + + + + - - - - - - + - + - - - - - - - + + - - - - - - + - + - - - - - - - + + - - - - - - + - + - - - - - - - + + - - - - - - - - - - - + + - - - - - - + - + - - - - - - - + + - - - - - - + - + - - - - - - - + + - - - - - - + - + - - - - - - - + + - - - - - - - - - - - + + - - - - - - - - - + + + + + + + + + + + + + + + + + - - + + - - + + - - + + diff --git a/lib/matplotlib/tests/baseline_images/test_tightlayout/tight_layout4.pdf b/lib/matplotlib/tests/baseline_images/test_tightlayout/tight_layout4.pdf index 1eaa92bd153e..74a45957ea72 100644 Binary files a/lib/matplotlib/tests/baseline_images/test_tightlayout/tight_layout4.pdf and b/lib/matplotlib/tests/baseline_images/test_tightlayout/tight_layout4.pdf differ diff 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pytest_configure, pytest_unconfigure, pd, xr) + mpl_test_settings, pytest_configure, pytest_unconfigure, pd, text_placeholders, xr) diff --git a/lib/matplotlib/tests/test_constrainedlayout.py b/lib/matplotlib/tests/test_constrainedlayout.py index 77f9f34bc2d8..7c7dd43a3115 100644 --- a/lib/matplotlib/tests/test_constrainedlayout.py +++ b/lib/matplotlib/tests/test_constrainedlayout.py @@ -11,6 +11,11 @@ from matplotlib import gridspec, ticker +pytestmark = [ + pytest.mark.usefixtures('text_placeholders') +] + + def example_plot(ax, fontsize=12, nodec=False): ax.plot([1, 2]) ax.locator_params(nbins=3) @@ -36,7 +41,7 @@ def example_pcolor(ax, fontsize=12): return pcm -@image_comparison(['constrained_layout1.png']) +@image_comparison(['constrained_layout1.png'], style='mpl20') def test_constrained_layout1(): """Test constrained_layout for a single subplot""" fig = plt.figure(layout="constrained") @@ -44,7 +49,7 @@ def test_constrained_layout1(): example_plot(ax, fontsize=24) -@image_comparison(['constrained_layout2.png']) +@image_comparison(['constrained_layout2.png'], style='mpl20') def test_constrained_layout2(): """Test constrained_layout for 2x2 subplots""" fig, axs = plt.subplots(2, 2, layout="constrained") @@ -52,7 +57,7 @@ def test_constrained_layout2(): example_plot(ax, fontsize=24) -@image_comparison(['constrained_layout3.png']) +@image_comparison(['constrained_layout3.png'], style='mpl20') def test_constrained_layout3(): """Test constrained_layout for colorbars with subplots""" @@ -66,7 +71,7 @@ def test_constrained_layout3(): fig.colorbar(pcm, ax=ax, pad=pad) -@image_comparison(['constrained_layout4.png']) +@image_comparison(['constrained_layout4.png'], style='mpl20') def test_constrained_layout4(): """Test constrained_layout for a single colorbar with subplots""" @@ -76,7 +81,7 @@ def test_constrained_layout4(): fig.colorbar(pcm, ax=axs, pad=0.01, shrink=0.6) -@image_comparison(['constrained_layout5.png'], tol=0.002) +@image_comparison(['constrained_layout5.png'], style='mpl20') def test_constrained_layout5(): """ Test constrained_layout for a single colorbar with subplots, @@ -91,12 +96,9 @@ def test_constrained_layout5(): location='bottom') -@image_comparison(['constrained_layout6.png'], tol=0.002) +@image_comparison(['constrained_layout6.png'], style='mpl20') def test_constrained_layout6(): """Test constrained_layout for nested gridspecs""" - # Remove this line when this test image is regenerated. - plt.rcParams['pcolormesh.snap'] = False - fig = plt.figure(layout="constrained") gs = fig.add_gridspec(1, 2, figure=fig) gsl = gs[0].subgridspec(2, 2) @@ -154,7 +156,7 @@ def test_constrained_layout7(): fig.draw_without_rendering() -@image_comparison(['constrained_layout8.png']) +@image_comparison(['constrained_layout8.png'], style='mpl20') def test_constrained_layout8(): """Test for gridspecs that are not completely full""" @@ -182,7 +184,7 @@ def test_constrained_layout8(): fig.colorbar(pcm, ax=axs, pad=0.01, shrink=0.6) -@image_comparison(['constrained_layout9.png']) +@image_comparison(['constrained_layout9.png'], style='mpl20') def test_constrained_layout9(): """Test for handling suptitle and for sharex and sharey""" @@ -197,7 +199,7 @@ def test_constrained_layout9(): fig.suptitle('Test Suptitle', fontsize=28) -@image_comparison(['constrained_layout10.png'], +@image_comparison(['constrained_layout10.png'], style='mpl20', tol=0 if platform.machine() == 'x86_64' else 0.032) def test_constrained_layout10(): """Test for handling legend outside axis""" @@ -207,7 +209,7 @@ def test_constrained_layout10(): ax.legend(loc='center left', bbox_to_anchor=(0.8, 0.5)) -@image_comparison(['constrained_layout11.png']) +@image_comparison(['constrained_layout11.png'], style='mpl20') def test_constrained_layout11(): """Test for multiple nested gridspecs""" @@ -227,7 +229,7 @@ def test_constrained_layout11(): example_plot(ax, fontsize=9) -@image_comparison(['constrained_layout11rat.png']) +@image_comparison(['constrained_layout11rat.png'], style='mpl20') def test_constrained_layout11rat(): """Test for multiple nested gridspecs with width_ratios""" @@ -247,7 +249,7 @@ def test_constrained_layout11rat(): example_plot(ax, fontsize=9) -@image_comparison(['constrained_layout12.png']) +@image_comparison(['constrained_layout12.png'], style='mpl20') def test_constrained_layout12(): """Test that very unbalanced labeling still works.""" fig = plt.figure(layout="constrained", figsize=(6, 8)) @@ -269,7 +271,7 @@ def test_constrained_layout12(): ax.set_xlabel('x-label') -@image_comparison(['constrained_layout13.png'], tol=2.e-2) +@image_comparison(['constrained_layout13.png'], style='mpl20') def test_constrained_layout13(): """Test that padding works.""" fig, axs = plt.subplots(2, 2, layout="constrained") @@ -281,7 +283,7 @@ def test_constrained_layout13(): fig.get_layout_engine().set(w_pad=24./72., h_pad=24./72.) -@image_comparison(['constrained_layout14.png']) +@image_comparison(['constrained_layout14.png'], style='mpl20') def test_constrained_layout14(): """Test that padding works.""" fig, axs = plt.subplots(2, 2, layout="constrained") @@ -293,7 +295,7 @@ def test_constrained_layout14(): hspace=0.2, wspace=0.2) -@image_comparison(['constrained_layout15.png']) +@image_comparison(['constrained_layout15.png'], style='mpl20') def test_constrained_layout15(): """Test that rcparams work.""" mpl.rcParams['figure.constrained_layout.use'] = True @@ -302,7 +304,7 @@ def test_constrained_layout15(): example_plot(ax, fontsize=12) -@image_comparison(['constrained_layout16.png']) +@image_comparison(['constrained_layout16.png'], style='mpl20') def test_constrained_layout16(): """Test ax.set_position.""" fig, ax = plt.subplots(layout="constrained") @@ -310,7 +312,7 @@ def test_constrained_layout16(): ax2 = fig.add_axes([0.2, 0.2, 0.4, 0.4]) -@image_comparison(['constrained_layout17.png']) +@image_comparison(['constrained_layout17.png'], style='mpl20') def test_constrained_layout17(): """Test uneven gridspecs""" fig = plt.figure(layout="constrained") @@ -435,7 +437,7 @@ def test_hidden_axes(): extents1 = np.copy(axs[0, 0].get_position().extents) np.testing.assert_allclose( - extents1, [0.045552, 0.543288, 0.47819, 0.982638], rtol=1e-5) + extents1, [0.046918, 0.541204, 0.477409, 0.980555], rtol=1e-5) def test_colorbar_align(): @@ -641,7 +643,7 @@ def test_compressed1(): fig.draw_without_rendering() pos = axs[0, 0].get_position() - np.testing.assert_allclose(pos.x0, 0.2344, atol=1e-3) + np.testing.assert_allclose(pos.x0, 0.2381, atol=1e-2) pos = axs[0, 1].get_position() np.testing.assert_allclose(pos.x1, 0.7024, atol=1e-3) @@ -655,11 +657,11 @@ def test_compressed1(): fig.draw_without_rendering() pos = axs[0, 0].get_position() - np.testing.assert_allclose(pos.x0, 0.06195, atol=1e-3) - np.testing.assert_allclose(pos.y1, 0.8537, atol=1e-3) + np.testing.assert_allclose(pos.x0, 0.05653, atol=1e-3) + np.testing.assert_allclose(pos.y1, 0.8603, atol=1e-2) pos = axs[1, 2].get_position() - np.testing.assert_allclose(pos.x1, 0.8618, atol=1e-3) - np.testing.assert_allclose(pos.y0, 0.1934, atol=1e-3) + np.testing.assert_allclose(pos.x1, 0.8728, atol=1e-3) + np.testing.assert_allclose(pos.y0, 0.1808, atol=1e-2) def test_compressed_suptitle(): @@ -675,7 +677,7 @@ def test_compressed_suptitle(): title = fig.suptitle("Title") fig.draw_without_rendering() - assert title.get_position()[1] == pytest.approx(0.7457, abs=1e-3) + assert title.get_position()[1] == pytest.approx(0.7491, abs=1e-3) title = fig.suptitle("Title", y=0.98) fig.draw_without_rendering() diff --git a/lib/matplotlib/tests/test_table.py b/lib/matplotlib/tests/test_table.py index 3cd60cd142bc..43b8702737a6 100644 --- a/lib/matplotlib/tests/test_table.py +++ b/lib/matplotlib/tests/test_table.py @@ -87,13 +87,13 @@ def test_label_colours(): loc='best') -@image_comparison(['table_cell_manipulation.png'], remove_text=True) -def test_diff_cell_table(): +@image_comparison(['table_cell_manipulation.png'], style='mpl20') +def test_diff_cell_table(text_placeholders): cells = ('horizontal', 'vertical', 'open', 'closed', 'T', 'R', 'B', 'L') cellText = [['1'] * len(cells)] * 2 colWidths = [0.1] * len(cells) - _, axs = plt.subplots(nrows=len(cells), figsize=(4, len(cells)+1)) + _, axs = plt.subplots(nrows=len(cells), figsize=(4, len(cells)+1), layout='tight') for ax, cell in zip(axs, cells): ax.table( colWidths=colWidths, @@ -102,7 +102,6 @@ def test_diff_cell_table(): edges=cell, ) ax.axis('off') - plt.tight_layout() def test_customcell(): diff --git a/lib/matplotlib/tests/test_tightlayout.py b/lib/matplotlib/tests/test_tightlayout.py index 9c654f4d1f48..f6b6d8f644cc 100644 --- a/lib/matplotlib/tests/test_tightlayout.py +++ b/lib/matplotlib/tests/test_tightlayout.py @@ -11,6 +11,11 @@ from matplotlib.patches import Rectangle +pytestmark = [ + pytest.mark.usefixtures('text_placeholders') +] + + def example_plot(ax, fontsize=12): ax.plot([1, 2]) ax.locator_params(nbins=3) @@ -19,7 +24,7 @@ def example_plot(ax, fontsize=12): ax.set_title('Title', fontsize=fontsize) -@image_comparison(['tight_layout1'], tol=1.9) +@image_comparison(['tight_layout1'], style='mpl20') def test_tight_layout1(): """Test tight_layout for a single subplot.""" fig, ax = plt.subplots() @@ -27,7 +32,7 @@ def test_tight_layout1(): plt.tight_layout() -@image_comparison(['tight_layout2']) +@image_comparison(['tight_layout2'], style='mpl20') def test_tight_layout2(): """Test tight_layout for multiple subplots.""" fig, ((ax1, ax2), (ax3, ax4)) = plt.subplots(nrows=2, ncols=2) @@ -38,7 +43,7 @@ def test_tight_layout2(): plt.tight_layout() -@image_comparison(['tight_layout3']) +@image_comparison(['tight_layout3'], style='mpl20') def test_tight_layout3(): """Test tight_layout for multiple subplots.""" ax1 = plt.subplot(221) @@ -50,8 +55,7 @@ def test_tight_layout3(): plt.tight_layout() -@image_comparison(['tight_layout4'], freetype_version=('2.5.5', '2.6.1'), - tol=0.015) +@image_comparison(['tight_layout4'], style='mpl20') def test_tight_layout4(): """Test tight_layout for subplot2grid.""" ax1 = plt.subplot2grid((3, 3), (0, 0)) @@ -65,7 +69,7 @@ def test_tight_layout4(): plt.tight_layout() -@image_comparison(['tight_layout5']) +@image_comparison(['tight_layout5'], style='mpl20') def test_tight_layout5(): """Test tight_layout for image.""" ax = plt.subplot() @@ -74,7 +78,7 @@ def test_tight_layout5(): plt.tight_layout() -@image_comparison(['tight_layout6']) +@image_comparison(['tight_layout6'], style='mpl20') def test_tight_layout6(): """Test tight_layout for gridspec.""" @@ -116,7 +120,7 @@ def test_tight_layout6(): h_pad=0.45) -@image_comparison(['tight_layout7'], tol=1.9) +@image_comparison(['tight_layout7'], style='mpl20') def test_tight_layout7(): # tight layout with left and right titles fontsize = 24 @@ -130,7 +134,7 @@ def test_tight_layout7(): plt.tight_layout() -@image_comparison(['tight_layout8'], tol=0.005) +@image_comparison(['tight_layout8'], style='mpl20', tol=0.005) def test_tight_layout8(): """Test automatic use of tight_layout.""" fig = plt.figure() @@ -140,7 +144,7 @@ def test_tight_layout8(): fig.draw_without_rendering() -@image_comparison(['tight_layout9']) +@image_comparison(['tight_layout9'], style='mpl20') def test_tight_layout9(): # Test tight_layout for non-visible subplots # GH 8244 @@ -174,10 +178,10 @@ def test_outward_ticks(): # These values were obtained after visual checking that they correspond # to a tight layouting that did take the ticks into account. expected = [ - [[0.091, 0.607], [0.433, 0.933]], - [[0.579, 0.607], [0.922, 0.933]], - [[0.091, 0.140], [0.433, 0.466]], - [[0.579, 0.140], [0.922, 0.466]], + [[0.092, 0.605], [0.433, 0.933]], + [[0.581, 0.605], [0.922, 0.933]], + [[0.092, 0.138], [0.433, 0.466]], + [[0.581, 0.138], [0.922, 0.466]], ] for nn, ax in enumerate(fig.axes): assert_array_equal(np.round(ax.get_position().get_points(), 3), @@ -190,8 +194,8 @@ def add_offsetboxes(ax, size=10, margin=.1, color='black'): """ m, mp = margin, 1+margin anchor_points = [(-m, -m), (-m, .5), (-m, mp), - (mp, .5), (.5, mp), (mp, mp), - (.5, -m), (mp, -m), (.5, -m)] + (.5, mp), (mp, mp), (mp, .5), + (mp, -m), (.5, -m)] for point in anchor_points: da = DrawingArea(size, size) background = Rectangle((0, 0), width=size, @@ -211,47 +215,78 @@ def add_offsetboxes(ax, size=10, margin=.1, color='black'): bbox_transform=ax.transAxes, borderpad=0.) ax.add_artist(anchored_box) - return anchored_box -@image_comparison(['tight_layout_offsetboxes1', 'tight_layout_offsetboxes2']) def test_tight_layout_offsetboxes(): - # 1. + # 0. # - Create 4 subplots # - Plot a diagonal line on them + # - Use tight_layout + # + # 1. + # - Same 4 subplots # - Surround each plot with 7 boxes # - Use tight_layout - # - See that the squares are included in the tight_layout - # and that the squares in the middle do not overlap + # - See that the squares are included in the tight_layout and that the squares do + # not overlap # # 2. - # - Make the squares around the right side axes invisible - # - See that the invisible squares do not affect the - # tight_layout + # - Make the squares around the Axes invisible + # - See that the invisible squares do not affect the tight_layout rows = cols = 2 colors = ['red', 'blue', 'green', 'yellow'] x = y = [0, 1] - def _subplots(): - _, axs = plt.subplots(rows, cols) - axs = axs.flat - for ax, color in zip(axs, colors): + def _subplots(with_boxes): + fig, axs = plt.subplots(rows, cols) + for ax, color in zip(axs.flat, colors): ax.plot(x, y, color=color) - add_offsetboxes(ax, 20, color=color) - return axs + if with_boxes: + add_offsetboxes(ax, 20, color=color) + return fig, axs + + # 0. + fig0, axs0 = _subplots(False) + fig0.tight_layout() # 1. - axs = _subplots() - plt.tight_layout() + fig1, axs1 = _subplots(True) + fig1.tight_layout() + + # The AnchoredOffsetbox should be added to the bounding of the Axes, causing them to + # be smaller than the plain figure. + for ax0, ax1 in zip(axs0.flat, axs1.flat): + bbox0 = ax0.get_position() + bbox1 = ax1.get_position() + assert bbox1.x0 > bbox0.x0 + assert bbox1.x1 < bbox0.x1 + assert bbox1.y0 > bbox0.y0 + assert bbox1.y1 < bbox0.y1 + + # No AnchoredOffsetbox should overlap with another. + bboxes = [] + for ax1 in axs1.flat: + for child in ax1.get_children(): + if not isinstance(child, AnchoredOffsetbox): + continue + bbox = child.get_window_extent() + for other_bbox in bboxes: + assert not bbox.overlaps(other_bbox) + bboxes.append(bbox) # 2. - axs = _subplots() - for ax in (axs[cols-1::rows]): + fig2, axs2 = _subplots(True) + for ax in axs2.flat: for child in ax.get_children(): if isinstance(child, AnchoredOffsetbox): child.set_visible(False) - - plt.tight_layout() + fig2.tight_layout() + # The invisible AnchoredOffsetbox should not count for tight layout, so it should + # look the same as when they were never added. + for ax0, ax2 in zip(axs0.flat, axs2.flat): + bbox0 = ax0.get_position() + bbox2 = ax2.get_position() + assert_array_equal(bbox2.get_points(), bbox0.get_points()) def test_empty_layout(): diff --git a/lib/mpl_toolkits/axisartist/tests/baseline_images/test_axislines/axisline_style_tight.png b/lib/mpl_toolkits/axisartist/tests/baseline_images/test_axislines/axisline_style_tight.png index 77314c1695a0..3b2b80f1f678 100644 Binary files a/lib/mpl_toolkits/axisartist/tests/baseline_images/test_axislines/axisline_style_tight.png and b/lib/mpl_toolkits/axisartist/tests/baseline_images/test_axislines/axisline_style_tight.png differ diff --git a/lib/mpl_toolkits/axisartist/tests/test_axislines.py b/lib/mpl_toolkits/axisartist/tests/test_axislines.py index b722316a5c0c..8bc3707421b6 100644 --- a/lib/mpl_toolkits/axisartist/tests/test_axislines.py +++ b/lib/mpl_toolkits/axisartist/tests/test_axislines.py @@ -119,7 +119,7 @@ def test_axisline_style_size_color(): @image_comparison(['axisline_style_tight.png'], remove_text=True, style='mpl20') def test_axisline_style_tight(): - fig = plt.figure(figsize=(2, 2)) + fig = plt.figure(figsize=(2, 2), layout='tight') ax = fig.add_subplot(axes_class=AxesZero) ax.axis["xzero"].set_axisline_style("-|>", size=5, facecolor='g') ax.axis["xzero"].set_visible(True) @@ -129,8 +129,6 @@ def test_axisline_style_tight(): for direction in ("left", "right", "bottom", "top"): ax.axis[direction].set_visible(False) - fig.tight_layout() - @image_comparison(['subplotzero_ylabel.png'], style='mpl20') def test_subplotzero_ylabel():