Version 0.2 will include a configuration editor presenting the number of segments to draw before changing direction.
Currently, it's quite complex to add or remove segments to an existing design.

The configuration of a design will be a dictionary containing these keys:

• dir: initial direction of the line
• length: length of the first segment
• gap : space between segments
• switches: a list of integers

for instance, this design:

can be regenerated with this configuration:

{ dir:[2, 1], gap:15, length:60, switches: [2, 2, 2, 1, 2, 1, 1, 2, 3, 2, 2] }

update

first implementation is done (see commit cea9afdb)
UI as been adapted to be able to play with it:

initial generation:

changing the last number of u-turns

changing the maximum number of segments