I have read some articles about access to the Mesh primitives like edge and vertex, but all those are outdated today for my understanding (such as this). My question is how by utilising python script (and BMesh Operators I guess) to set precise length for the exact edge of the Mesh. I am thinking about using the python script like parametric modelling (like do Fuson 360), I want to change the value of the parameter to change part of the mesh.

  • $\begingroup$ Needs detail. Lots of ways to resize an edge. Can move one or both end verts. $\endgroup$
    – batFINGER
    Commented Aug 1, 2020 at 17:20
  • $\begingroup$ I want to move both vertices at the same distance from the edge centre but toward opposite directions $\endgroup$ Commented Aug 1, 2020 at 18:27


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