Applying transform2d to selection
I want to perform geometric transforms on the selection in a script.
First I thought I would find a specific procedure for that (the "manual"
transforms can act on selections as well as on layers and paths) but I
didn't find any. Then I figured out that the selection was a drawable so
I could use the procedure for drawables. Unfortunately this procedure
produces a floating selection (even when working on the selection itsef)
and I can't get a transformed selection from that.
As far as my tests go, I can also use it on channels, so I started
looking into something like:
- save selection to channel
- apply transform to channel (the result appears as a floating selection
in the Layers dialog)
- merge down the result... and it is added to the saved selection
channel! So I would have to clear that channel before merging down?
At that points things look a bit too complicated and I doubt I'm doing
it the right way... So what is the trick?
