[clug] [OT] Bézier curve

[Scott Ferguson]

On 29/05/18 18:22, Bryan Kilgallin via linux wrote:
> In MyPaint, one of the painting tools is Lines and Curves.
> 
>    {Hold Shift and click the first time to curve the line towards your
> cursor position.
>     If you edit the curve a second time your cursor position is
> important. You will add a second bend to the curve at the starting point
> or ending point. It depends which one is closer to your cursor. The
> other point will inherit the curvature of your first modification.
>     More edits: You will always manipulate the bend of the point you are
> closest to.}
> 
> I have read that Bézier curves are useful for aesthetic effects. Has
> anyone here found a use for such?

Yes! I use them in GIMP and Inkscape. A lot.
They are useful when you want to select an area that's not a
square/rectangle, or a circle/oval - or to create a curved (or
serpentine) "path" that text (or effects/filters) can be applied to.

Example: to create a curved arrow for documentation, I add a transparent
layer, then create a curved line on that layer using a Bézier curve,
then "stroke" the line. This results in a much smoother curved arrow
than by just hand drawing one.

Bézier lines are what you would use if you wanted to draw the "Coke
Ribbon®".

Note: GIMP now calls "bézier lines", "paths". Bézier lines don't have to
be "a line" - you can join the ends and have a Bézier shape. Inkscape
has always called them "Paths" (but they are Bézier lines).

You may find the GIMP guide to creating them useful (or not, depending
on how MyPaint allows you to manipulate them - I've never used MyPaint).

https://www.gimp.org/tutorials/Bezier_Selections/


Kind regards

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