Simple pcolormesh data explorer

slice_explorer.py

import numpy as np
import matplotlib.pyplot as plt
from matplotlib.widgets import Slider

def main():
    data = np.random.random((10,10,10))
    ex = Explorer(data)
    ex.show()

class Explorer(object):
    def __init__(self, data):
        self.data = data
        nz = self.data.shape[0] - 1

        self.fig, self.ax = plt.subplots()
        self.ax.set_title('Slices along the first axes')

        self.sliderax = self.fig.add_axes([0.2, 0.02, 0.65, 0.04])
        self.slider = Slider(self.sliderax, 'Slice', 0, nz, valinit=0)
        self.slider.on_changed(self.update)

        self.im = self.ax.pcolormesh(data[0,:,:], vmin=data.min(), vmax=data.max())

    def update(self, i):
        self.im.set_array(self.data[int(i),:,:].ravel())
        self.fig.canvas.draw()

    def show(self):
        plt.show()

main()