How do I visually stack multiple line graphs above each other in python?

Question

I was having trouble creating a plot I need which has multiple line graphs.

What I want is a way to graph each of these above the other (say one has a baseline of y=5 I want the next to have a baseline of y=10) and also each of these graphs must block the one above it.

So this will inevitably look like the cover to Joy Divisions Unknown Pleasures here: http://cococubed.asu.edu/images/unknown_pleasures/unknown_pleasures.jpg

Except inverted colors and I also would like an answer that utilizes python or numpy or matplotlib.

Does each plot must be really stacked on top of each other such as curve 1 is y1, curve 2 is y2+y2, curve 3 is y3+y2+y1 ... and so on? Or is just the baseline that must be added? — user2304916
– user2304916, Commented Jul 15, 2013 at 21:28

numentar · Accepted Answer · 2013-07-16 09:05:08Z

3

Here's one way. The key point is to use fill_between function and offset each plotted line with some margin (i*2 in this case). Also, plotting has to start from the top, hence the [::-1] in the arange slice.

t=linspace(-2*pi, 2*pi, 1000)
for i in arange(1, pi, 0.01)[::-1]:
    left = exp(-(t + (i - 1) * 2*pi)**2) * cos(t * i)**2 - 1
    right = exp(-(t - (i - 1) * 2*pi)**2) * cos(t * i)**2 - 1 
    vertical_offset = i*2
    fill_between(t, vertical_offset + left + right, facecolor='white')

answered Jul 16, 2013 at 9:05

numentar

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