hyperspy.drawing._markers.arrow module

class hyperspy.drawing._markers.arrow.Arrow(x1, y1, x2, y2, **kwargs)

Bases: MarkerBase

Arrow marker that can be added to the signal figure

Parameters
  • x1 (array or float) – The position of the tail of the arrow in x. If float, the marker is fixed. If array, the marker will be updated when navigating. The array should have the same dimensions in the navigation axes.

  • y1 (array or float) – The position of the tail of the arrow in y. see x1 arguments

  • x2 (array or float) – The position of the head of the arrow in x. see x1 arguments

  • y2 (array or float) – The position of the head of the arrow in y. see x1 arguments

  • kwargs – Keyword arguments are passed to matplotlib.patches.FancyArrowPatch.

Example

>>> import scipy.misc
>>> im = hs.signals.Signal2D(scipy.misc.ascent())
>>> m = hs.plot.markers.arrow(x1=150, y1=100, x2=400, y2=400,
>>>                           arrowprop={'arrowstyle':'<->', edgecolor='red'})
>>> im.add_marker(m)

Adding a marker permanently to a signal

>>> im.add_marker(m, permanent=True)