Playing with circles and segments (PcG)
Advice to position one of the sliders and then scroll one of the others, it will be interesting to compare the result with the opposite operation. Note: Zooming to fit the image is also updated by sliding the first slider and the vertical one. The polygonal is managed through the blue segments. Their inclination is the same for everyone and their length is delimited by the circle following the one from which they originate. I recommend reading at least the first pdf attached.
