I'm very new to expressions and would greatly appreciate any help.
I'm creating a classic map with an animated stroke route line. As the stroke hits certain points I want it to cue the place names and a small animated circle. I can do this manually but if I make any changes to the mask, then the timing is wrong. There are hundreds of layers that need to be cued so I'm hopeful for a practical expression or two to help.
Here's a stripped down example of what I'm talking about:
So how do I inform my text layer when to fade-in based on the value of the stroke? Perhaps I'm looking at this the wrong way. What values would I use in this expression?