magmap.gui.image_viewer module

Image viewer support

class magmap.gui.image_viewer.Blitter(fig, artists=None)

Bases: object

Controller for blitting in Matplotlib graphics.

Improves interactive graphics performance by reducing repetitive drawing.

add_artist(arist, i=None)

Add tracked artist.

Parameters:

• arist (Artist) – Artist to track. Only artists in fig will be added.

• i (Optional[int], default: None) – Index at which to add the artist. Defaults to None, which will append the artist.

property artists: List[Artist]

Tracked artists for blitting.

fig: Figure

Matplotlib figure.

on_draw(evt)

Recapture backgrouna and draw the figure canvas.

update()

Update the canvas.