New Post: Line direction markers

I've taken a look at the example browser, but apparently i didn't find a solution.
Let say i have a line composed of N points: i would like to show to the user the line direction: this is especially usefull to show the direction from the start point to the end point in closed curves.
Is there some kind of LineSeries i cas use?
If not, is it possible to use a color map into a LineSeries?

Thanks in advance!