GIMP Plugin Registry

This script create vector lines along a path. Position on the path, angle, and length of the lines can be configured.
In Gimp, you can find this script in Filters>Figures.
The lines are placed on the path every s pixels (s : step).
The angle of each line is the value of the slope (degrees) plus the angle defined by the user.
The length of the lines can be modified by a function (the x in this functions is (IntervalStart + (RelativePositionToPath * (IntervalEnd - IntervalStart))) ).

Steps, angles, and lengths can also be randomised.
The options of "Randomise interval" means:  read more »

This script creates escaping lines from any point. It's similar in function to the built-in Line-Nova Script, but much more flexible. So you can chose the center, the thickness, the angle, the length, the offset and the randomness.
Copy it into the scripts folder from GIMP, you will find it then under Filters -> Render -> Escape Lines.  read more »