I want to adjust opposite nodes on a path, made from a shape tool, simultaneously to maintain symmetry. For example I make an ellipse, convert the ellipse to a path, then select the two nodes opposite each other and make them symmetric nodes then lengthen one handle by 50% or so, I want the other selected node to do the same. Is there a way to do this?
Not simultaneously, but it’s simple to do it manually by using guides, the snapping option: Snap Nodes Paths and Handles, and by holding down CTRL as you click and drag the Bézier handles to constrain the angle.
There is also a rather convoluted way to make symmetrical shapes automatically. It’s probably too complex for your particular scenario, but certainly useful for more complex symmetry.
You can create a half ellipse, clone it, reflect it, move into position. Then the edits made to the clone source will update automatically in the reflected clone.
Source : Link , Question Author : Voila , Answer Author : Billy Kerr