Answers for "python scroll thorugh 3d volumes"

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python scroll thorugh 3d volumes

def multi_slice_viewer(volume):
    remove_keymap_conflicts({'j', 'k'})
    fig, ax = plt.subplots()
    ax.volume = volume
    ax.index = volume.shape[0] // 2
    ax.imshow(volume[ax.index])
    fig.canvas.mpl_connect('key_press_event', process_key)

def process_key(event):
    fig = event.canvas.figure
    ax = fig.axes[0]
    if event.key == 'j':
        previous_slice(ax)
    elif event.key == 'k':
        next_slice(ax)
    fig.canvas.draw()

def previous_slice(ax):
    volume = ax.volume
    ax.index = (ax.index - 1) % volume.shape[0]  # wrap around using %
    ax.images[0].set_array(volume[ax.index])

def next_slice(ax):
    volume = ax.volume
    ax.index = (ax.index + 1) % volume.shape[0]
    ax.images[0].set_array(volume[ax.index])
Posted by: Guest on August-25-2021

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