Python matplotlib.artist() Examples

def add_artist(self, a):
        """Add any :class:`~matplotlib.artist.Artist` to the axes.

        Use `add_artist` only for artists for which there is no dedicated
        "add" method; and if necessary, use a method such as `update_datalim`
        to manually update the dataLim if the artist is to be included in
        autoscaling.

        If no ``transform`` has been specified when creating the artist (e.g.
        ``artist.get_transform() == None``) then the transform is set to
        ``ax.transData``.

        Returns the artist.
        """
        a.axes = self
        self.artists.append(a)
        a._remove_method = self.artists.remove
        self._set_artist_props(a)
        a.set_clip_path(self.patch)
        self.stale = True
        return a 

def gci():
    """
    Get the current colorable artist.  Specifically, returns the
    current :class:`~matplotlib.cm.ScalarMappable` instance (image or
    patch collection), or *None* if no images or patch collections
    have been defined.  The commands :func:`~matplotlib.pyplot.imshow`
    and :func:`~matplotlib.pyplot.figimage` create
    :class:`~matplotlib.image.Image` instances, and the commands
    :func:`~matplotlib.pyplot.pcolor` and
    :func:`~matplotlib.pyplot.scatter` create
    :class:`~matplotlib.collections.Collection` instances.  The
    current image is an attribute of the current axes, or the nearest
    earlier axes in the current figure that contains an image.
    """
    return gcf()._gci()


## Any Artist ##


# (getp is simply imported) 

def get_default_bbox_extra_artists(self):
        """
        Return a default list of artists that are used for the bounding box
        calculation.

        Artists are excluded either by not being visible or
        ``artist.set_in_layout(False)``.
        """

        artists = self.get_children()
        if not (self.axison and self._frameon):
            # don't do bbox on spines if frame not on.
            for spine in self.spines.values():
                artists.remove(spine)

        if not self.axison:
            for _axis in self._get_axis_list():
                artists.remove(_axis)

        return [artist for artist in artists
                if (artist.get_visible() and artist.get_in_layout())] 

def set_alpha(self, alpha):
        """
        Set the alpha tranparencies of the collection.  *alpha* must be
        a float or *None*.

        ACCEPTS: float or None
        """
        if alpha is not None:
            try:
                float(alpha)
            except TypeError:
                raise TypeError('alpha must be a float or None')
        artist.Artist.set_alpha(self, alpha)
        try:
            self._facecolors = mcolors.colorConverter.to_rgba_array(
                self._facecolors3d, self._alpha)
        except (AttributeError, TypeError, IndexError):
            pass
        try:
            self._edgecolors = mcolors.colorConverter.to_rgba_array(
                    self._edgecolors3d, self._alpha)
        except (AttributeError, TypeError, IndexError):
            pass 

def add_artist(self, a):
        """Add any :class:`~matplotlib.artist.Artist` to the axes.

        Use `add_artist` only for artists for which there is no dedicated
        "add" method; and if necessary, use a method such as `update_datalim`
        to manually update the dataLim if the artist is to be included in
        autoscaling.

        If no ``transform`` has been specified when creating the artist (e.g.
        ``artist.get_transform() == None``) then the transform is set to
        ``ax.transData``.

        Returns the artist.
        """
        a.axes = self
        self.artists.append(a)
        a._remove_method = self.artists.remove
        self._set_artist_props(a)
        a.set_clip_path(self.patch)
        self.stale = True
        return a 

def gci():
    """
    Get the current colorable artist.  Specifically, returns the
    current :class:`~matplotlib.cm.ScalarMappable` instance (image or
    patch collection), or *None* if no images or patch collections
    have been defined.  The commands :func:`~matplotlib.pyplot.imshow`
    and :func:`~matplotlib.pyplot.figimage` create
    :class:`~matplotlib.image.Image` instances, and the commands
    :func:`~matplotlib.pyplot.pcolor` and
    :func:`~matplotlib.pyplot.scatter` create
    :class:`~matplotlib.collections.Collection` instances.  The
    current image is an attribute of the current axes, or the nearest
    earlier axes in the current figure that contains an image.
    """
    return gcf()._gci()


## Any Artist ##


# (getp is simply imported) 

def add_artist(self, a):
        """Add any :class:`~matplotlib.artist.Artist` to the axes.

        Use `add_artist` only for artists for which there is no dedicated
        "add" method; and if necessary, use a method such as
        `update_datalim` or `update_datalim_numerix` to manually update the
        dataLim if the artist is to be included in autoscaling.

        Returns the artist.
        """
        a.set_axes(self)
        self.artists.append(a)
        self._set_artist_props(a)
        a.set_clip_path(self.patch)
        a._remove_method = lambda h: self.artists.remove(h)
        return a 

def add_artist(self, a):
        """Add any :class:`~matplotlib.artist.Artist` to the axes.

        Use `add_artist` only for artists for which there is no dedicated
        "add" method; and if necessary, use a method such as `update_datalim`
        to manually update the dataLim if the artist is to be included in
        autoscaling.

        If no ``transform`` has been specified when creating the artist (e.g.
        ``artist.get_transform() == None``) then the transform is set to
        ``ax.transData``.

        Returns the artist.
        """
        a.axes = self
        self.artists.append(a)
        a._remove_method = self.artists.remove
        self._set_artist_props(a)
        a.set_clip_path(self.patch)
        self.stale = True
        return a 

def add_artist(self, a):
        """Add any :class:`~matplotlib.artist.Artist` to the axes.

        Use `add_artist` only for artists for which there is no dedicated
        "add" method; and if necessary, use a method such as
        `update_datalim` or `update_datalim_numerix` to manually update the
        dataLim if the artist is to be included in autoscaling.

        Returns the artist.
        """
        a.set_axes(self)
        self.artists.append(a)
        self._set_artist_props(a)
        a.set_clip_path(self.patch)
        a._remove_method = lambda h: self.artists.remove(h)
        return a 

def get_default_bbox_extra_artists(self):
        """
        Return a default list of artists that are used for the bounding box
        calculation.

        Artists are excluded either by not being visible or
        ``artist.set_in_layout(False)``.
        """

        artists = self.get_children()
        if not (self.axison and self._frameon):
            # don't do bbox on spines if frame not on.
            for spine in self.spines.values():
                artists.remove(spine)

        if not self.axison:
            for _axis in self._get_axis_list():
                artists.remove(_axis)

        return [artist for artist in artists
                if (artist.get_visible() and artist.get_in_layout())] 

def gci():
    """
    Get the current colorable artist.  Specifically, returns the
    current :class:`~matplotlib.cm.ScalarMappable` instance (image or
    patch collection), or *None* if no images or patch collections
    have been defined.  The commands :func:`~matplotlib.pyplot.imshow`
    and :func:`~matplotlib.pyplot.figimage` create
    :class:`~matplotlib.image.Image` instances, and the commands
    :func:`~matplotlib.pyplot.pcolor` and
    :func:`~matplotlib.pyplot.scatter` create
    :class:`~matplotlib.collections.Collection` instances.  The
    current image is an attribute of the current axes, or the nearest
    earlier axes in the current figure that contains an image.
    """
    return gcf()._gci()


## Any Artist ##


# (getp is simply imported) 

def add_artist(self, a):
        """Add any :class:`~matplotlib.artist.Artist` to the axes.

        Use `add_artist` only for artists for which there is no dedicated
        "add" method; and if necessary, use a method such as `update_datalim`
        to manually update the dataLim if the artist is to be included in
        autoscaling.

        Returns the artist.
        """
        a.axes = self
        self.artists.append(a)
        self._set_artist_props(a)
        a.set_clip_path(self.patch)
        a._remove_method = lambda h: self.artists.remove(h)
        self.stale = True
        return a 

def pick(self, *args):
        """Trigger pick event

        Call signature::

            pick(mouseevent)

        each child artist will fire a pick event if mouseevent is over
        the artist and the artist has picker set
        """
        martist.Artist.pick(self, args[0]) 

def get_default_bbox_extra_artists(self):
        return [artist for artist in self.get_children()
                if artist.get_visible()] 

def get_default_bbox_extra_artists(self):
        return [artist for artist in self.get_children()
                if artist.get_visible()] 

def autoscale(self, enable=True, axis='both', tight=None):
        """
        Autoscale the axis view to the data (toggle).

        Convenience method for simple axis view autoscaling.
        It turns autoscaling on or off, and then,
        if autoscaling for either axis is on, it performs
        the autoscaling on the specified axis or axes.

        *enable*: [True | False | None]
            True (default) turns autoscaling on, False turns it off.
            None leaves the autoscaling state unchanged.

        *axis*: ['x' | 'y' | 'both']
            which axis to operate on; default is 'both'

        *tight*: [True | False | None]
            If True, set view limits to data limits;
            if False, let the locator and margins expand the view limits;
            if None, use tight scaling if the only artist is an image,
            otherwise treat *tight* as False.
            The *tight* setting is retained for future autoscaling
            until it is explicitly changed.


        Returns None.
        """
        if enable is None:
            scalex = True
            scaley = True
        else:
            scalex = False
            scaley = False
            if axis in ['x', 'both']:
                self._autoscaleXon = bool(enable)
                scalex = self._autoscaleXon
            if axis in ['y', 'both']:
                self._autoscaleYon = bool(enable)
                scaley = self._autoscaleYon
        self.autoscale_view(tight=tight, scalex=scalex, scaley=scaley) 

def gci():
    """
    Get the current colorable artist.  Specifically, returns the
    current :class:`~matplotlib.cm.ScalarMappable` instance (image or
    patch collection), or *None* if no images or patch collections
    have been defined.  The commands :func:`~matplotlib.pyplot.imshow`
    and :func:`~matplotlib.pyplot.figimage` create
    :class:`~matplotlib.image.Image` instances, and the commands
    :func:`~matplotlib.pyplot.pcolor` and
    :func:`~matplotlib.pyplot.scatter` create
    :class:`~matplotlib.collections.Collection` instances.  The
    current image is an attribute of the current axes, or the nearest
    earlier axes in the current figure that contains an image.

    Notes
    -----
    Historically, the only colorable artists were images; hence the name
    ``gci`` (get current image).
    """
    return gcf()._gci()


## Any Artist ##


# (getp is simply imported) 

def __setstate__(self, state):
        self.__dict__ = state
        # put the _remove_method back on all artists contained within the axes
        for container_name in ['lines', 'collections', 'tables', 'patches',
                               'texts', 'images']:
            container = getattr(self, container_name)
            for artist in container:
                artist._remove_method = container.remove 

def _redraw_over_background(self) -> None:
        """ Redraw animated elements of the image. """

        # Both FigureCanvasAgg and FigureCanvasCairo, but not FigureCanvasBase,
        # support restore_region().
        canvas: FigureCanvasAgg = self._fig.canvas
        canvas.restore_region(self.bg_cache)

        for artist in self._artists:
            artist.axes.draw_artist(artist)

        # canvas.blit(self._fig.bbox) is unnecessary when drawing off-screen. 

def __setstate__(self, state):
        self.__dict__ = state
        # put the _remove_method back on all artists contained within the axes
        for container_name in ['lines', 'collections', 'tables', 'patches',
                               'texts', 'images']:
            container = getattr(self, container_name)
            for artist in container:
                artist._remove_method = container.remove
        self._stale = True
        self._layoutbox = None
        self._poslayoutbox = None 

def print_figure(self, filename, *args, **kwargs):
        # Use pure Agg renderer to draw
        FigureCanvasBase.print_figure(self, filename, *args, **kwargs)
        # Restore the current view; this is needed because the
        # artist contains methods rely on particular attributes
        # of the rendered figure for determining things like
        # bounding boxes.
        if self._isDrawn:
            self.draw() 

def pick(self, *args):
        """Trigger pick event

        Call signature::

            pick(mouseevent)

        each child artist will fire a pick event if mouseevent is over
        the artist and the artist has picker set
        """
        martist.Artist.pick(self, args[0]) 

def print_figure(self, filename, *args, **kwargs):
        # Use pure Agg renderer to draw
        FigureCanvasBase.print_figure(self, filename, *args, **kwargs)
        # Restore the current view; this is needed because the
        # artist contains methods rely on particular attributes
        # of the rendered figure for determining things like
        # bounding boxes.
        if self._isDrawn:
            self.draw() 

def pick(self, *args):
        """Trigger pick event

        Call signature::

            pick(mouseevent)

        each child artist will fire a pick event if mouseevent is over
        the artist and the artist has picker set
        """
        martist.Artist.pick(self, args[0]) 

def gci():
    """
    Get the current colorable artist.  Specifically, returns the
    current :class:`~matplotlib.cm.ScalarMappable` instance (image or
    patch collection), or *None* if no images or patch collections
    have been defined.  The commands :func:`~matplotlib.pyplot.imshow`
    and :func:`~matplotlib.pyplot.figimage` create
    :class:`~matplotlib.image.Image` instances, and the commands
    :func:`~matplotlib.pyplot.pcolor` and
    :func:`~matplotlib.pyplot.scatter` create
    :class:`~matplotlib.collections.Collection` instances.  The
    current image is an attribute of the current axes, or the nearest
    earlier axes in the current figure that contains an image.
    """
    return gcf()._gci() 

def get_default_bbox_extra_artists(self):
        """
        Return a default list of artists that are used for the bounding box
        calculation.

        Artists are excluded either by not being visible or
        ``artist.set_in_layout(False)``.
        """
        return [artist for artist in self.get_children()
                if (artist.get_visible() and artist.get_in_layout())] 

def pick(self, *args):
        """Trigger pick event

        Call signature::

            pick(mouseevent)

        each child artist will fire a pick event if mouseevent is over
        the artist and the artist has picker set
        """
        martist.Artist.pick(self, args[0]) 

def gci():
    """
    Get the current colorable artist.  Specifically, returns the
    current :class:`~matplotlib.cm.ScalarMappable` instance (image or
    patch collection), or *None* if no images or patch collections
    have been defined.  The commands :func:`~matplotlib.pyplot.imshow`
    and :func:`~matplotlib.pyplot.figimage` create
    :class:`~matplotlib.image.Image` instances, and the commands
    :func:`~matplotlib.pyplot.pcolor` and
    :func:`~matplotlib.pyplot.scatter` create
    :class:`~matplotlib.collections.Collection` instances.  The
    current image is an attribute of the current axes, or the nearest
    earlier axes in the current figure that contains an image.
    """
    return gcf()._gci() 

def get_default_bbox_extra_artists(self):
        return [artist for artist in self.get_children()
                if artist.get_visible()] 

def print_figure(self, filename, *args, **kwargs):
        # Use pure Agg renderer to draw
        FigureCanvasBase.print_figure(self, filename, *args, **kwargs)
        # Restore the current view; this is needed because the
        # artist contains methods rely on particular attributes
        # of the rendered figure for determining things like
        # bounding boxes.
        if self._isDrawn:
            self.draw()