Matplotlib transparent line plots

PythonMatplotlib

Python Problem Overview

I am plotting two similar trajectories in matplotlib and I'd like to plot each of the lines with partial transparency so that the red (plotted second) doesn't obscure the blue.

alt text

EDIT: Here's the image with transparent lines.

alt text

Python Solutions

Solution 1 - Python

Plain and simple:

plt.plot(x, y, 'r-', alpha=0.7)

(I know I add nothing new, but the straightforward answer should be visible).

Solution 2 - Python

After I plotted all the lines, I was able to set the transparency of all of them as follows:

for l in fig_field.gca().lines:
    l.set_alpha(.7)

EDIT: please see Joe's answer in the comments.

Solution 3 - Python

It really depends on what functions you're using to plot the lines, but try see if the on you're using takes an alpha value and set it to something like 0.5. If that doesn't work, try get the line objects and set their alpha values directly.

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Content TypeOriginal AuthorOriginal Content on Stackoverflow
QuestionGusView Question on Stackoverflow
Solution 1 - PythonDavoud Taghawi-NejadView Answer on Stackoverflow
Solution 2 - PythonGusView Answer on Stackoverflow
Solution 3 - PythonmoinudinView Answer on Stackoverflow