"(not quite so) Fat Sam" <samandjanet@knox.orangehome.co.uk> ha scritto

> Set up a new layer in your image.
> Now using the rectanguelar marquee tool, draw a rectangular selection.
> Next click Select > Modify > Smooth, and enter a number that corrsponds to
> the number of pixels you want your radius to be. Click on Okay.
> Now your selection will have radiused corners. Use the paint-bucket to
> flood it with whatever colour you want your line to be.
> Next click Select > Modify > Contract, and enter a number that corrsponds
> to the number of pixels width you want your line to be. Click on Okay.
> Now hit the delete key on your keyboard.
> Lastly, click Select > Deselect.
>
> That will replicate the effect you have shown us, but this is only one of
> a dozen or so different ways of doing the same job.
> You'll get loads of other answers suggesting different methods. Each one
> as valid as the last one. The trick is to try them all and find the one
> that you find easiest.

Thanks a lot for your detailed answer. I have read with attention and i have
done all you have described, and the result is a little different from my
example. Infact in my example the two lines, one black and one white, in the
*curvature* mix themeselves and exit inverted. Infact i think this is an
effect like a object impressed by light. The final impression of this effect
is that the lines seem to be a track impressed on the background.

regards Portek