How to add transparency to animatedline?

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I have some animation in plot that I want to add transparency to, since I'm plotting multiple data with different color, and sometimes they overlap. I tried alpha(object, 0.5), where object is the object created by command animatedline. But then the warning shows that 'The alpha command is not compatible with the specified objects'.
Is there a way to make the animatedline objects transparent to an extent? Thanks.

Accepted Answer

Walter Roberson
Walter Roberson on 13 Jul 2017
It turns out to be possible, but not documented. Instead of setting the Color property to an RGB triple, set it to a quad, a list of 4 numbers between 0 and 1, RGBA.
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Walter Roberson
Walter Roberson on 13 Jul 2017
I figured out a java approach to find and set the MarkerFaceColor including an alpha component. Unfortunately, the alpha part does not "stick": as soon as it is set, it gets reset back to 1.0

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