![](https://secure.gravatar.com/avatar/e46ba2ac6cfb03253fcd348ed44368ac.jpg?s=120&d=mm&r=g)
Inkscape users,
I've recently discovered the the tweak tool, and it's been a real help in shaping objects and pen strokes.
However, it has a side effect I can't quite understand.
If I'm working on one end of an object, the vertices on the other end of the object will get shifted and move around to undesired positions.
It seems like the Tweak tool is trying to preserve the volume of the shape, so if I pull the bottom side down, the top side will also shift down somewhat.
I looked up information about the Tweak tool on the web, and it seemed that the "Fidelity" setting was the one that controlled the overall influence over the shape. But, despite what I've read, whether I set it to 0 or to 100, I still get this overall distorting of the shape.
Ideally, I want to just move around vertices within the area defined by the size of the brush, or immediately adjacent. I don't want to see influence over the whole object.
Is there a way I can contain the Tweak tool to localize it's influence more?
I hope my descriptions and questions are clear.
Any advice would be much appreciated.