TrimPath-OffsetStroke

TrimPath-OffsetStroke .js

//Used to offset the dashes of a stroke while the trim start is animated.

start = thisProperty.propertyGroup(4).content("Trim Paths 1").start; // Path to the Trim Path's start slider 
path = thisProperty.propertyGroup(4).content("Path 1").path; // Path to the vector path
n = 0; 
for (i = 0; i < path.points().length - 1; i++) {
	n += length(path.points()[i], path.points()[i + 1]); // Sum of all the length between two points
  }
offset = start * n / 100; // offset the dashes to stay in place while start is animated
value + offset;