Need help with draggable over svg path like drawing line

[Kivan]

Hello everyone, I'm trying to build a pattern drawing. But i'm not sure my way correct or not.
Is it possible that can drag the knob that follow to the path and complete the whole path progress.

Thank you so much!

See the Pen VwVJWYq by kivanfan (@kivanfan) on CodePen

[Cassie]

Hi there Kivan, welcome to the forums!

 

This is quite a tricky one, but there have been a lot of discussions in the forums about this before

This thread should help you, along with some of the linked examples and subthreads
 

Good luck, pop back if you get stuck and I'll try and dig through the threads and help. ☺️