Hallo,
I got a question on a German forum:

If you arrange pictures in a circle partially over the other the last one is
over the first and over the last but one picture:
To get it OK one can use "alpha to selection" and Ctrl-X on the (correct) layer.

My question is now: what are the Python commands to be able to automate this action I tried something like this

layer -1 is the background layer -2 the first picture and naturally layer 0 is the last
one overlapping TWO picture, but it should do so only with ONE.

What Python command(s) could be used in place of Ctrl-X ???

The upper grey Mandela-picture should be over the left one picture.

Creating from two (or more) pictures a Ring like this is done in the Python console.
Only the two commands, possible in the Gimp-window "alpha to selection" and what Ctrl-X (on the right layer) would solve my problem

Your wisdom for me would make (grandfather) Peter happy

let me think more about it but I would completely avoid the problem bu doing it differently. If I need to arrange 8 pictures in a circle: 1..8 then I create a 9th picture which is a copy of the first with one half made transparent:



See attached XCF.

Otherwise I think you need pdb.gimp_edit_clear() (which is more like [delete] but this should be enough)

Your idea onuts of using a half of a suitable picture works nicely. Thanks

the gimp_edit_clear() , as a replacement for ctrl-x after an "alpha to selection"
seems not to be the real needed analogon. Or I do not do it yet correctly.

Peter

Possibly... because I have used it and that works as expected: the selection is made transparent on the target layer (in you script, I assume that you create a selection using one mayer, and gimp-edit-clear() the other layer...

OH , it is so easy, if one knows:
Problem Solved, by using pdb.gimp_edit_cut(onasuitableLayer)
That is like a ctrl-x (with the good selection!)
onasuitableLayer is eg. image.layers[0] (at my script).

Thanks Ofnuts, for your reply above.
Will have a look at it ;-)

Greets
Peter