Module pyspecan.backend.mpl.plot

Classes

class BlitPlot (fig: matplotlib.figure.Figure = <Figure size 640x480 with 0 Axes>)

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class BlitPlot(_Plot):
    """Plot supporting blitting"""
    __slots__ = ("_bg", "_cid")
    def __init__(self, fig: Figure = plt.figure()):
        super().__init__(fig)
        for i, ax in enumerate(fig.axes):
            self._axs[i] = BlitAx(ax, self)
        self._bg = None
        self._cid = self._canv.mpl_connect("draw_event", self._on_draw)

    def update(self):
        cv = self.canvas
        fig = cv.figure
        if self._bg is None:
            self._on_draw(None)
        else:
            cv.restore_region(self._bg) # type: ignore
            self._draw_animated()
            # cv.blit(self._fig.bbox)
            cv.blit(fig.bbox)
        cv.flush_events()

    def add_ax(self, name, ax: Axes):
        self._axs[name] = BlitAx(ax)

    def _on_draw(self, event):
        cv = self.canvas
        if event is not None:
            if event.canvas != cv:
                raise RuntimeError
        self._bg = cv.copy_from_bbox(cv.figure.bbox) # type: ignore
        self._draw_animated()

    def _draw_animated(self):
        for xname, ax in self._axs.items():
            for aname, art in ax.artists.items():
                # print(f"Drawing {xname}[{aname}]")
                self._fig.draw_artist(art)

Plot supporting blitting

Ancestors

• pyspecan.backend.mpl.plot._Plot

Methods

def add_ax(self, name, ax: matplotlib.axes._axes.Axes)

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def add_ax(self, name, ax: Axes):
    self._axs[name] = BlitAx(ax)

Add new axes

def update(self)

Expand source code

def update(self):
    cv = self.canvas
    fig = cv.figure
    if self._bg is None:
        self._on_draw(None)
    else:
        cv.restore_region(self._bg) # type: ignore
        self._draw_animated()
        # cv.blit(self._fig.bbox)
        cv.blit(fig.bbox)
    cv.flush_events()

Update plot

class Plot (fig: matplotlib.figure.Figure = <Figure size 640x480 with 0 Axes>)

Expand source code

class Plot(_Plot):
    def __init__(self, fig: Figure = plt.figure()):
        super().__init__(fig)
        for i, ax in enumerate(fig.axes):
            self._axs[i] = Ax(ax, self)

Generic plotting parent

Ancestors

• pyspecan.backend.mpl.plot._Plot