Graechan, this information me was super helpful!
I was getting empty results.

A small detail unnoticed. Thx for the clarification.

Now I'm able to use the script without problems.
Graechan and elfnor, thx!

I like your sig akros....how long have you had it?

I like it too Akros.
Sallyanne, I love yours cuz it reminds me of a lot of embroidery I did and I call that the Satin stitch which works very well on text and stems etc.

Thanx Molly. What is the font you used? It looks nice.

First of all a big thank to Elfnor


from this original


to


x Molly - I made the original in Apophysis!

OK; figured out how this one works. Helped that I had a similar excercise with Poincare Disks a while back. Used the p6m to create the seamless tile by strategically cropping. The jpeg's just a 1000pxX1000px fill. Again, thanks for the python plugin.

Escher's Poteto Game test
input

result

Still having fun; p4m with fish brush that I got from GIMPTalk many (and I mean more then a few) years ago. Too lazy to look up the link now. lol



Individual tile:

Used Pic-Pak to fill the target before re-running p4m this time. This is a crop to make it a seamless tile.

And still having fun. lol

Graechan, I'm not sure what you mean.

If the user has selected for example, a 50 by 70 pixel rectangle in the original image and in the dialog leaves the width and height and height at 500, what do you want to happen?

If this example dosen't work can you give us another.

Elfnor

Quick tut on how I used this gem. It matters not if square or rectangle. First start with arbitrary size (in this case 1024X768) transparent layer. Now make a selection (this case, I did a circular selection).



Now run the preset; you'll, of course, get a blank result (disgard) but you will also get a new selection. Do selection to path.






Now deselect, fill stuff withing the path are (you can also choose to place symmetrical object at center edge of where the facets are that will reflect but this requires a good eyeball) and then you get the following new target:

Now this is your new target:



Now do path to selection and re-run the plugin. Choose a different size if you like; I choose 2000X2000

Thank you Lyle, you make what look to be difficult be easier. At least one can understand the behaviour of the outcome.

Lyle

That's a clever way of getting just what you want in the selection.

One early idea for the plugin, for the symmetries with non-rectangular cells, was to get the user to define the initial cell with a path on the image. The plug-in would then "tidy up" this inital rough path to be a perfect equilateral traingle or kite shape etc. as required, and use that to make a selection to make the new image. I rejected this as difficult to explain to the user, "What's a kite shape?", and while "tidying up" the users path sounds easy, the implementation was not straightforward.

Elfnor

PS. Can I add that method to my docs when (hopefully this weekend) I write a little more on how you can use the plugin?