I have created a 3D map in ArcGIS Pro that shows the flight path of a drone. I want to use arrows for the symbology that point in the direction of the flight path. Each observation includes elapsed time in seconds. I would like each arrow to point towards the arrow with the next highest elapsed time (i.e. the arrow at 1.5 seconds points towards the arrow at 3.0 seconds etc.). I am not sure what type of expression in the expression builder would be appropriate to accomplish this using Arcade.
Use the Points to Line tool to create a line representation of your points. This will result in a new feature class with one record (line) connecting all of your points.
Use the Split Line At Vertices tool to create a new feature class where each segment between each point is a separate record.
Then use basic symbology to place an arrow at the end of each line.