Is there a script to create concentric circle and polygon, even better on transparent bg ? (or as path ?)

I would like use as filling for lineart they can make very dramatic BG ( just try to overlay 2 circolar concetric pattrern with a bit of offset use as BG place on top the character or a important detail so it cover the centers of the pattern ...
and voila you will draw the reader attention there.

Ok i will resurrect the scanner to post some example of pratical use...

anyway the idea is simple a render script to create concentric circles (most important) squares or polygons (more optional) as paths or at least on transparent BG, with option for the number of circles,

Is this script available PC?

If available i didn't find yet

Oh, sorry, I thought this meant there was already a script available

"there is a script to create concentric circle and polygon, even better on transparent bg ? (or as path ?)"

@PhotoComix

As a starter you could try mathmap

There is a zoom function that never seems to work properly for me but this expression does.

filter time_zoom (image in)
zoom = sin(t*pi/2);
in(xy * exp(scale(zoom, 0, 1, 4, 0)))
end

screen shot http://i.imgur.com/5VHxH.jpg - its worth playing with

And if I can throw something into the pot the coders out there
the step-resize script would be perfect *if* it saved the intermediate steps to new layers instead of scrapping them.

edit: forgot to mention, used the parametic shapes script for the polygon (and I know it is not a pentagon LOL)

The Shape Paths script (http://registry.gimp.org/node/59) can create a wide variety of shapes:

You can create concentric circles and polygons by creating a series of circles/polygons with a common center and increasing radius.

I frequently use these scripts and they work quite well.

Mahvin has written a very good tutorial for this script: http://www.mahvin.com/?p=1994

Attached is a script I wrote several years ago that can set up one of four paths:
- a path consisting of shaped lines following an initial selection
- a path consisting of concentric circles filling the image
- a path made of horizontal lines
- a path made of vertical lines
using a specified spacing for the path lines.

It shows up under "Filters>Artistic>Mosaic Tile Helper"

The scipt will (optionally) stroke the path with the current pen, but this has limited value, as the tiles will all be one colour. It is best used be having it leave the path then using the stroke path command after setting up the active paintbrush to use the rotating tile set I provided earlier in the post, along with the "use gradient" colour option in the paintbrush.

Here are some samples (brush spacing increased so you see the dot of each brush):


I made this script to help with creating "fake mosaics", hence its name:


-Rob A>

That is kewl RobA, thank you

Crazy wonderful cool Rob. Going to give this one a try later. Thanks.

I just realized what you are going after PC. G'MIC has a cool preset called Edges Offset that you might be able to use for your needs.