However, instead of the extrusion values varying strongly along the attractor curve—as shown in the reference image— the changes in my project are very subtle, as you can see in the image below.
focus on the point distribution first.
the selected green sliders (unnamed) define the target range.
start playing around by setting the start value to 0
i think it would be a nice addition in your grasshopper file to use graph mapper to play arround with different mappings that influence to movement with different fall-off strengths…
something similar to this:
use a scale factor “effect”
→ positiv the curve will attract the points,
→ 0 no effect
→ negative values push away
… still further finetuning is possiple.
check the Tutorial Files that come with rhino:
Grasshopper → Help → Tutorial Files → 06 Adaptive Pattern with Shape