Source code for ximage.widget

#!/usr/bin/env python
# -*- coding: utf-8 -*-

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"""
This module contains the ximage widgets
"""

from __future__ import (absolute_import, division, print_function,
                        unicode_literals)
import numpy as np
import matplotlib.pylab as pl
import matplotlib.widgets as wdg

__authors__ = "Francesco De Carlo"
__copyright__ = "Copyright (c) 2017, Argonne National Laboratory"
__version__ = "0.0.1"
__docformat__ = "restructuredtext en"
__all__ = ['slider']

[docs]class slider(): """ Plots a stack of images. Parameters ---------- data : ndarray 3D stack of images. """ def __init__(self, data): self.data = data ax = pl.subplot(111) pl.subplots_adjust(left=0.25, bottom=0.25) self.frame = 0 self.l = pl.imshow(self.data[self.frame,:,:], cmap='gray') axcolor = 'lightgoldenrodyellow' axframe = pl.axes([0.25, 0.1, 0.65, 0.03], axisbg=axcolor) self.sframe = wdg.Slider(axframe, 'Frame', 0, self.data.shape[0]-1, valfmt='%0.0f') self.sframe.on_changed(self.update) pl.show()
[docs] def update(self, val): self.frame = int(np.around(self.sframe.val)) self.l.set_data(self.data[self.frame,:,:])