How to add transparency to animatedline?

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.

Answer 1

[Walter Roberson]

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.

[Tong Zhao]

Hi Walter, I tried what you said by the following line:

curve_1 = animatedline('Color',[0,0,1,0.5],'LineWidth',4,'MaximumNumPoints',3,'Parent',hAxes_TrqSplitLogic,'Marker','o','MarkerFaceColor',[0,0,1,0.5],'MarkerEdgeColor','none','MarkerSize',8);

But I got the following error: Error using animatedline While setting property 'MarkerFaceColor' of class 'AnimatedLine': Color value must be a 3 element vector

[Walter Roberson]

It appears that MarkerFaceColor cannot be set to transparent that way. I will keep looking.

[Walter Roberson]

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