GIMP Version: 2.8.14
Operating System: Linux
OS Version: mint 18.3
GIMP Experience: Intermediate Level

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I can't figure out if this is a bug, or I'm using a tool wrong. Tried searching but the keywords are hard to get good results for.

To replicate issue:
1. Make a layer group with two or more layers and draw something on them.
2. Select the group folder/layer and use a selection tool on it
3. Use "scale" or another transform tool on the selection

Expected behavior: the pixels within the selection should be transformed according to what you did with the tool
Actual behavior: the entire layer/image is transformed and the selection has no effect

I had similar results when I tried to use layer links to do the same operation.

Gimp version: 2.10.6
Picture to explain below

Hi Jeremy.

I'm sure you can't work on individual layers that have been linked into a group. (left-click hold down shift key then shows a chain icon on all layers)
Once the layers have been grouped you can only work on them as a group. You can scale the group and move it around on the canvass but cannot edit individual layers. This is logical when you think about it?

I can edit the layers within the group individually by clicking them, but that's not the problem.

I can't edit them *all at once* is the problem.
If you look at the middle picture, the scale preview looks like it's going to work correctly (it's scaling up the top half of all the number layers as I've selected)

But when the scale operation finalizes it completely ignores the selection and just scales up the whole layer.

I see what you're saying, I test it in both Gimp 2.8 and 2.10.6 and it does the same thing. Once you use the Scale up or down, get rid of the selection (Select> None). Then you end up with some kind of selection. This is just the "Layer size" and all you have to do is, apply "Layer to image size", to the group layer. The faster way to do this instead going Layer by Layer, is using the "Multiple Layer Actions rel 5.2" script filter, create by one of the Gimpchat coder member, Graechan. If you don't have it, I be happy to share it with you. I hope this will help you.

No no, this has nothing to do with the layer boundary or parts that are left outside the canvas.

Look at the middle picture. You see how the top half of the numbers are being scaled up and the bottom isn't? This is what I want to happen.
I want the top half of all three to be scaled up and the bottom half to be left alone.

Now look at the third picture. The scale tool has scaled the *WHOLE IMAGE*. It was supposed to only scale what was in the selection. I did not want the whole image scaled up, only the selection.


I don't know how I can type this to make the problem any clearer.