I made a map, wich have multiple nodes. When you select a node you see a line from the selection nodo to the nexts nodes to chose the road you want.
I want in UMG to get this distance and fill that line conection like a progress bar in a travel time.
Something like 80 days
Any idea?
You could try drawing the (sp)line twice. A thick one first - as the backdrop, and then a second, thinner one acting as the progress fill. It ain’t gonna be easy or pretty since you’d need to calculate tangents along the way.
Alternatively, you could spam individual pixels along a path. 
Another option is trying to tap into this:
https://www.fab.com/listings/1bd04141-c553-4b63-8ee9-277595475195
Imho, a much more feasible approach for this job.
I will have to take a look with the niagara solution, but really don´t know anything about particles.
Is what we’re looking at in the pic fully 2D?
Yes is a simple map in 2D. The example of 80 days was to have an example of the idea.
Just want the travel indication like a progress bar. I can make another line on paint in red. But my idea was to for example fill that line in 5 seconds emulating the travel.
Just making sure, 3D options exist. There are not many tools for this, strangely enough. And even if you made it work in pure UMG, you will have very little control over the way those lines look and behave.
Can be done but just thinking about the way to do it makes me squirm. Don’t go this way. If you’re versed in C++, you can leverage what the editor is doing with splines in the graph, the wires we drag around everywhere. If you’re not, do seriously consider the plugin - it might be the only way. The plugin should be $100 but it’s free 
One way or another, it is going to be a steep learning curve.
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