diff --git a/examples/axes_grid/inset_locator_demo.py b/examples/axes_grid/inset_locator_demo.py index 3fc9e975e23a..6b7582b3f5bc 100644 --- a/examples/axes_grid/inset_locator_demo.py +++ b/examples/axes_grid/inset_locator_demo.py @@ -32,6 +32,9 @@ def add_sizebar(ax, size): ax2.set_aspect(1.) axins = zoomed_inset_axes(ax2, 0.5, loc=1) # zoom = 0.5 +# fix the number of ticks on the inset axes +axins.yaxis.get_major_locator().set_params(nbins=7) +axins.xaxis.get_major_locator().set_params(nbins=7) plt.xticks(visible=False) plt.yticks(visible=False) diff --git a/examples/axes_grid/inset_locator_demo2.py b/examples/axes_grid/inset_locator_demo2.py index 97e420694b64..51374cbbc7c8 100644 --- a/examples/axes_grid/inset_locator_demo2.py +++ b/examples/axes_grid/inset_locator_demo2.py @@ -34,6 +34,9 @@ def get_demo_image(): x1, x2, y1, y2 = -1.5, -0.9, -2.5, -1.9 axins.set_xlim(x1, x2) axins.set_ylim(y1, y2) +# fix the number of ticks on the inset axes +axins.yaxis.get_major_locator().set_params(nbins=7) +axins.xaxis.get_major_locator().set_params(nbins=7) plt.xticks(visible=False) plt.yticks(visible=False) diff --git a/lib/matplotlib/axis.py b/lib/matplotlib/axis.py index 3c8967ef676f..b166bcc741f4 100644 --- a/lib/matplotlib/axis.py +++ b/lib/matplotlib/axis.py @@ -664,7 +664,6 @@ def __init__(self, axes, pickradius=15): # Initialize here for testing; later add API self._major_tick_kw = dict() self._minor_tick_kw = dict() - self._tick_space = None self.cla() self._set_scale('linear') @@ -796,7 +795,6 @@ def set_tick_params(self, which='major', reset=False, **kw): for tick in self.minorTicks: tick._apply_params(**self._minor_tick_kw) self.stale = True - self._tick_space = None @staticmethod def _translate_tick_kw(kw, to_init_kw=True): @@ -1996,16 +1994,14 @@ def set_default_intervals(self): self.stale = True def get_tick_space(self): - if self._tick_space is None: - ends = self.axes.transAxes.transform([[0, 0], [1, 0]]) - length = ((ends[1][0] - ends[0][0]) / self.axes.figure.dpi) * 72.0 - tick = self._get_tick(True) - # There is a heuristic here that the aspect ratio of tick text - # is no more than 3:1 - size = tick.label1.get_size() * 3 - size *= np.cos(np.deg2rad(tick.label1.get_rotation())) - self._tick_space = np.floor(length / size) - return self._tick_space + ends = self.axes.transAxes.transform([[0, 0], [1, 0]]) + length = ((ends[1][0] - ends[0][0]) / self.axes.figure.dpi) * 72.0 + tick = self._get_tick(True) + # There is a heuristic here that the aspect ratio of tick text + # is no more than 3:1 + size = tick.label1.get_size() * 3 + size *= np.cos(np.deg2rad(tick.label1.get_rotation())) + return np.floor(length / size) class YAxis(Axis): @@ -2339,12 +2335,10 @@ def set_default_intervals(self): self.stale = True def get_tick_space(self): - if self._tick_space is None: - ends = self.axes.transAxes.transform([[0, 0], [0, 1]]) - length = ((ends[1][1] - ends[0][1]) / self.axes.figure.dpi) * 72.0 - tick = self._get_tick(True) - # Having a spacing of at least 2 just looks good. - size = tick.label1.get_size() * 2.0 - size *= np.cos(np.deg2rad(tick.label1.get_rotation())) - self._tick_space = np.floor(length / size) - return self._tick_space + ends = self.axes.transAxes.transform([[0, 0], [0, 1]]) + length = ((ends[1][1] - ends[0][1]) / self.axes.figure.dpi) * 72.0 + tick = self._get_tick(True) + # Having a spacing of at least 2 just looks good. + size = tick.label1.get_size() * 2.0 + size *= np.cos(np.deg2rad(tick.label1.get_rotation())) + return np.floor(length / size) diff --git a/lib/matplotlib/tests/test_axes.py b/lib/matplotlib/tests/test_axes.py index a41af8d5b50d..780584d2e634 100644 --- a/lib/matplotlib/tests/test_axes.py +++ b/lib/matplotlib/tests/test_axes.py @@ -4276,6 +4276,19 @@ def _helper_y(ax): assert assert_array_equal(ax_lst[0][1].get_xlim(), orig_xlim) +@cleanup +def test_adjust_numtick_aspect(): + fig, ax = plt.subplots() + ax.yaxis.get_major_locator().set_params(nbins='auto') + ax.set_xlim(0, 1000) + ax.set_aspect('equal') + fig.canvas.draw() + assert len(ax.yaxis.get_major_locator()()) == 2 + ax.set_ylim(0, 1000) + fig.canvas.draw() + assert len(ax.yaxis.get_major_locator()()) > 2 + + @image_comparison(baseline_images=["auto_numticks"], style='default', extensions=['png']) def test_auto_numticks(): diff --git a/lib/matplotlib/ticker.py b/lib/matplotlib/ticker.py index b6641be13c4f..2d416bbac431 100644 --- a/lib/matplotlib/ticker.py +++ b/lib/matplotlib/ticker.py @@ -1434,7 +1434,7 @@ def set_params(self, **kwargs): def bin_boundaries(self, vmin, vmax): nbins = self._nbins if nbins == 'auto': - nbins = min(self.axis.get_tick_space(), 9) + nbins = max(min(self.axis.get_tick_space(), 9), 1) scale, offset = scale_range(vmin, vmax, nbins) if self._integer: scale = max(1, scale) diff --git a/lib/mpl_toolkits/tests/test_axes_grid1.py b/lib/mpl_toolkits/tests/test_axes_grid1.py index 92c7f3f467d3..c20826604b35 100644 --- a/lib/mpl_toolkits/tests/test_axes_grid1.py +++ b/lib/mpl_toolkits/tests/test_axes_grid1.py @@ -101,7 +101,8 @@ def get_demo_image(): axins = zoomed_inset_axes(ax, 6, loc=1) # zoom = 6 axins.imshow(Z2, extent=extent, interpolation="nearest", origin="lower") - + axins.yaxis.get_major_locator().set_params(nbins=7) + axins.xaxis.get_major_locator().set_params(nbins=7) # sub region of the original image x1, x2, y1, y2 = -1.5, -0.9, -2.5, -1.9 axins.set_xlim(x1, x2) pFad - Phonifier reborn

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