A parametric zigzag pattern that sets based on a variable 2D grid, can be modified by graph mapper.
Using graph mapper for making different variations is always interesting. It sets to make a variable 2D grid that can be modified in the Y direction as any sets of numbers (the X value is fixed in this case and can be a number). so it uses this parametric grid to draw ZigZag patterns.
For the final part of the definition, there is a simple line segment reduction that makes an artistic look for the drawing pattern...