Python ticker.MaxNLocator方法代码示例

# 需要导入模块: from matplotlib import ticker [as 别名]
# 或者: from matplotlib.ticker import MaxNLocator [as 别名]
def plot_per_epoch(ckpt_dir, title, measurements, y_label):
    """Plots stats (train/valid loss, avg PSNR, etc.)."""

    fig = plt.figure()
    ax = fig.add_subplot(111)
    ax.plot(range(1, len(measurements) + 1), measurements)
    ax.xaxis.set_major_locator(MaxNLocator(integer=True))
    ax.set_xlabel('Epoch')
    ax.set_ylabel(y_label)
    ax.set_title(title)
    plt.tight_layout()

    fname = '{}.png'.format(title.replace(' ', '-').lower())
    plot_fname = os.path.join(ckpt_dir, fname)
    plt.savefig(plot_fname, dpi=200)
    plt.close() 

# 需要导入模块: from matplotlib import ticker [as 别名]
# 或者: from matplotlib.ticker import MaxNLocator [as 别名]
def _autolev(self, z, N):
        """
        Select contour levels to span the data.

        We need two more levels for filled contours than for
        line contours, because for the latter we need to specify
        the lower and upper boundary of each range. For example,
        a single contour boundary, say at z = 0, requires only
        one contour line, but two filled regions, and therefore
        three levels to provide boundaries for both regions.
        """
        if self.locator is None:
            if self.logscale:
                self.locator = ticker.LogLocator()
            else:
                self.locator = ticker.MaxNLocator(N + 1)
        zmax = self.zmax
        zmin = self.zmin
        lev = self.locator.tick_values(zmin, zmax)
        self._auto = True
        if self.filled:
            return lev
        # For line contours, drop levels outside the data range.
        return lev[(lev > zmin) & (lev < zmax)] 

# 需要导入模块: from matplotlib import ticker [as 别名]
# 或者: from matplotlib.ticker import MaxNLocator [as 别名]
def _select_locator(self, formatter):
        '''
        select a suitable locator
        '''
        if self.boundaries is None:
            if isinstance(self.norm, colors.NoNorm):
                nv = len(self._values)
                base = 1 + int(nv/10)
                locator = ticker.IndexLocator(base=base, offset=0)
            elif isinstance(self.norm, colors.BoundaryNorm):
                b = self.norm.boundaries
                locator = ticker.FixedLocator(b, nbins=10)
            elif isinstance(self.norm, colors.LogNorm):
                locator = ticker.LogLocator()
            else:
                locator = ticker.MaxNLocator(nbins=5)
        else:
            b = self._boundaries[self._inside]
            locator = ticker.FixedLocator(b) #, nbins=10)

        self.cbar_axis.set_major_locator(locator) 

# 需要导入模块: from matplotlib import ticker [as 别名]
# 或者: from matplotlib.ticker import MaxNLocator [as 别名]
def test_constrained_layout6():
    'Test constrained_layout for nested gridspecs'
    fig = plt.figure(constrained_layout=True)
    gs = fig.add_gridspec(1, 2, figure=fig)
    gsl = gs[0].subgridspec(2, 2)
    gsr = gs[1].subgridspec(1, 2)
    axsl = []
    for gs in gsl:
        ax = fig.add_subplot(gs)
        axsl += [ax]
        example_plot(ax, fontsize=12)
    ax.set_xlabel('x-label\nMultiLine')
    axsr = []
    for gs in gsr:
        ax = fig.add_subplot(gs)
        axsr += [ax]
        pcm = example_pcolor(ax, fontsize=12)

    fig.colorbar(pcm, ax=axsr,
                 pad=0.01, shrink=0.99, location='bottom',
                 ticks=ticker.MaxNLocator(nbins=5)) 

# 需要导入模块: from matplotlib import ticker [as 别名]
# 或者: from matplotlib.ticker import MaxNLocator [as 别名]
def _plot_and_save_attention(att_w, filename):
    """Plot and save an attention."""
    # dynamically import matplotlib due to not found error
    from matplotlib.ticker import MaxNLocator
    import os

    d = os.path.dirname(filename)
    if not os.path.exists(d):
        os.makedirs(d)
    w, h = plt.figaspect(1.0 / len(att_w))
    fig = plt.Figure(figsize=(w * 2, h * 2))
    axes = fig.subplots(1, len(att_w))
    if len(att_w) == 1:
        axes = [axes]
    for ax, aw in zip(axes, att_w):
        # plt.subplot(1, len(att_w), h)
        ax.imshow(aw, aspect="auto")
        ax.set_xlabel("Input")
        ax.set_ylabel("Output")
        ax.xaxis.set_major_locator(MaxNLocator(integer=True))
        ax.yaxis.set_major_locator(MaxNLocator(integer=True))
    fig.tight_layout()
    return fig 

# 需要导入模块: from matplotlib import ticker [as 别名]
# 或者: from matplotlib.ticker import MaxNLocator [as 别名]
def _plot_walk(self, ax, parameter, data, truth=None, extents=None, convolve=None, color=None, log_scale=False):  # pragma: no cover
        if extents is not None:
            ax.set_ylim(extents)
        assert convolve is None or isinstance(convolve, int), "Convolve must be an integer pixel window width"
        x = np.arange(data.size)
        ax.set_xlim(0, x[-1])
        ax.set_ylabel(parameter)
        if color is None:
            color = "#0345A1"
        ax.scatter(x, data, c=color, s=2, marker=".", edgecolors="none", alpha=0.5)
        max_ticks = self.parent.config["max_ticks"]
        if log_scale:
            ax.set_yscale("log")
            ax.yaxis.set_major_locator(LogLocator(numticks=max_ticks))
        else:
            ax.yaxis.set_major_locator(MaxNLocator(max_ticks, prune="lower"))

        if convolve is not None:
            color2 = self.parent.color_finder.scale_colour(color, 0.5)
            filt = np.ones(convolve) / convolve
            filtered = np.convolve(data, filt, mode="same")
            ax.plot(x[:-1], filtered[:-1], ls=":", color=color2, alpha=1) 

# 需要导入模块: from matplotlib import ticker [as 别名]
# 或者: from matplotlib.ticker import MaxNLocator [as 别名]
def make_map(axes):
    import matplotlib.ticker as mticker
    import cartopy.crs as ccrs
    from cartopy.mpl.gridliner import LONGITUDE_FORMATTER, LATITUDE_FORMATTER

    gl = axes.gridlines(crs=ccrs.PlateCarree(), draw_labels=True,
                      linewidth=2, color='gray', alpha=0.5, linestyle='-')
    axes.coastlines('10m')

    gl.xlabels_top = False
    gl.ylabels_right = False
    gl.xlocator = mticker.MaxNLocator(nbins=5,min_n_ticks=3,steps=None)
    gl.ylocator = mticker.MaxNLocator(nbins=5,min_n_ticks=3,steps=None)
    gl.xformatter = LONGITUDE_FORMATTER
    gl.yformatter = LATITUDE_FORMATTER
    #gl.xlabel_style = {'size': 15, 'color': 'gray'}
    #gl.xlabel_style = {'color': 'red', 'weight': 'bold'}
    return axes 

# 需要导入模块: from matplotlib import ticker [as 别名]
# 或者: from matplotlib.ticker import MaxNLocator [as 别名]
def plot_relative_lengths(data, fname):
    # some panels will be empty for longer HPs so keep track of what lengths and bases are in each row/column
    rows = sorted(data['ref_len'].unique())
    cols = sorted(data['q_base'].unique())
    fig, axes = plt.subplots(
        ncols=len(cols), nrows=len(rows), sharex=True,
        figsize=(4 * len(cols), 2 * len(rows)))
    for rl, rl_df in data.groupby(['ref_len']):
        i = rows.index(rl)
        for qb, qb_df in rl_df.groupby('q_base'):
            j = cols.index(qb)
            ax = axes[i][j]
            ax.bar(qb_df['rel_len'], qb_df['count'])
            ax.set_title('{}{}'.format(qb, rl))
            ax.xaxis.set_tick_params(which='both', labelbottom=True)
            ax.xaxis.set_major_locator(MaxNLocator(integer=True))
            ax.yaxis.set_major_locator(MaxNLocator(integer=True))

    for ax in axes[-1,:]:
        ax.set_xlabel('Query length relative to reference')
    for ax in axes[:, 0]:
        ax.set_ylabel('Counts')
    fig.tight_layout()
    fig.savefig(fname) 

# 需要导入模块: from matplotlib import ticker [as 别名]
# 或者: from matplotlib.ticker import MaxNLocator [as 别名]
def place_plot(self, axis) -> None:
            self._axis = axis

            for n, v in self._prev_values.items():
                self._axis.scatter(v[1], v[0], label=n, c=self._colors[n])

            self._axis.set_ylabel(self._handle)
            self._axis.set_xlabel('epoch')
            self._axis.xaxis.set_major_locator(MaxNLocator(integer=True))
            self._axis.legend()
            plt.grid() 

# 需要导入模块: from matplotlib import ticker [as 别名]
# 或者: from matplotlib.ticker import MaxNLocator [as 别名]
def _config_axes(self, ax, ax2):
		# define the necessary colors
		color_bg = self.get_color('bg', ColorHexCode.WHITE)
		color_fg = self.get_color('fg', ColorHexCode.BLACK)
		color_line_bg = self.get_color('line_bg', ColorHexCode.WHITE)
		ax.tick_params(
			axis='both',
			which='both',
			colors=color_fg,
			top=False,
			bottom=False
		)
		ax2.tick_params(
			axis='both',
			which='both',
			colors=color_fg,
			top=False,
			bottom=False
		)
		ax.set_facecolor(color_line_bg)
		ax2.set_facecolor(color_line_bg)
		title = pyplot.title('Campaign Comparison', color=color_fg, size=self.markersize_scale * 1.75, loc='left')
		title.set_position([0.075, 1.05])
		ax.set_ylabel('Percent Visits/Credentials', color=color_fg, size=self.markersize_scale * 1.5)
		ax.set_xlabel('Campaign Name', color=color_fg, size=self.markersize_scale * 1.5)
		self._ax_hide_ticks(ax)
		self._ax_hide_ticks(ax2)
		ax2.set_ylabel('Messages', color=color_fg, size=self.markersize_scale * 1.25, rotation=270, labelpad=20)
		self._ax_set_spine_color(ax, color_bg)
		self._ax_set_spine_color(ax2, color_bg)
		ax2.get_yaxis().set_major_locator(ticker.MaxNLocator(integer=True))
		ax.tick_params(axis='x', labelsize=10, pad=5) 

# 需要导入模块: from matplotlib import ticker [as 别名]
# 或者: from matplotlib.ticker import MaxNLocator [as 别名]
def __init__(self,
                 transform,
                 extreme_finder=None,
                 grid_locator1=None,
                 grid_locator2=None,
                 tick_formatter1=None,
                 tick_formatter2=None):
        """
        transform : transform from the image coordinate (which will be
        the transData of the axes to the world coordinate.

        or transform = (transform_xy, inv_transform_xy)

        locator1, locator2 : grid locator for 1st and 2nd axis.
        """

        if extreme_finder is None:
            extreme_finder = ExtremeFinderSimple(20, 20)
        if grid_locator1 is None:
            grid_locator1 = MaxNLocator()
        if grid_locator2 is None:
            grid_locator2 = MaxNLocator()
        if tick_formatter1 is None:
            tick_formatter1 = FormatterPrettyPrint()
        if tick_formatter2 is None:
            tick_formatter2 = FormatterPrettyPrint()

        super(GridFinder, self).__init__( \
                 extreme_finder,
                 grid_locator1,
                 grid_locator2,
                 tick_formatter1,
                 tick_formatter2)

        self.update_transform(transform) 

# 需要导入模块: from matplotlib import ticker [as 别名]
# 或者: from matplotlib.ticker import MaxNLocator [as 别名]
def __call__(self, v1, v2):
        if self._factor is not None:
            self.set_bounds(v1*self._factor, v2*self._factor)
            locs = mticker.MaxNLocator.__call__(self)
            return np.array(locs), len(locs), self._factor
        else:
            self.set_bounds(v1, v2)
            locs = mticker.MaxNLocator.__call__(self)
            return np.array(locs), len(locs), None 

# 需要导入模块: from matplotlib import ticker [as 别名]
# 或者: from matplotlib.ticker import MaxNLocator [as 别名]
def colorbar(self, mappable, **kwargs):
        locator=kwargs.pop("locator", None)

        if locator is None:
            if "ticks" not in kwargs:
                kwargs["ticks"] = ticker.MaxNLocator(5)
        if locator is not None:
            if "ticks" in kwargs:
                raise ValueError("Either *locator* or *ticks* need to be given, not both")
            else:
                kwargs["ticks"] = locator

        self.hold(True)
        if self.orientation in  ["top", "bottom"]:
            orientation="horizontal"
        else:
            orientation="vertical"

        cb = Colorbar(self, mappable, orientation=orientation, **kwargs)
        self._config_axes()

        def on_changed(m):
            #print 'calling on changed', m.get_cmap().name
            cb.set_cmap(m.get_cmap())
            cb.set_clim(m.get_clim())
            cb.update_bruteforce(m)

        self.cbid = mappable.callbacksSM.connect('changed', on_changed)
        mappable.colorbar = cb

        self.locator = cb.cbar_axis.get_major_locator()

        return cb 

# 需要导入模块: from matplotlib import ticker [as 别名]
# 或者: from matplotlib.ticker import MaxNLocator [as 别名]
def test_MaxNLocator():
    loc = mticker.MaxNLocator(nbins=5)
    test_value = np.array([20., 40., 60., 80., 100.])
    assert_almost_equal(loc.tick_values(20, 100), test_value)

    test_value = np.array([0., 0.0002, 0.0004, 0.0006, 0.0008, 0.001])
    assert_almost_equal(loc.tick_values(0.001, 0.0001), test_value)

    test_value = np.array([-1.0e+15, -5.0e+14, 0e+00, 5e+14, 1.0e+15])
    assert_almost_equal(loc.tick_values(-1e15, 1e15), test_value) 

# 需要导入模块: from matplotlib import ticker [as 别名]
# 或者: from matplotlib.ticker import MaxNLocator [as 别名]
def __init__(self, max_n_ticks, calendar, date_unit, min_n_ticks=3):
        # The date unit must be in the form of days since ...

        self.max_n_ticks = max_n_ticks
        self.min_n_ticks = min_n_ticks
        self._max_n_locator = mticker.MaxNLocator(max_n_ticks, integer=True)
        self._max_n_locator_days = mticker.MaxNLocator(
            max_n_ticks, integer=True, steps=[1, 2, 4, 7, 10])
        self.calendar = calendar
        self.date_unit = date_unit
        if not self.date_unit.lower().startswith('days since'):
            msg = 'The date unit must be days since for a NetCDF time locator.'
            raise ValueError(msg)

        self._cached_resolution = {}