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+--- Thread: Path To Selection (/Thread-Path-To-Selection)
Path To Selection - Krikor - 08-06-2022
Hello,
1- Initially I trace some strokes on separate layers.
2- Then I merge these paths in a single layer, but the result that is obtained from the selection of this path does not match the created paths.
3- I would like to be able to get a selection close to what you can see in the illustration below this image (3):
![[Image: PSfpfIh.jpg]](https://i.imgur.com/PSfpfIh.jpg)
Is there any way to achieve this with Gimp?
I've tried the Join Strokes plugin but no success.
Thx!
RE: Path To Selection - teapot - 08-07-2022
One way you could do it:
1. Make a continuous path of the outline, so the ends of the sidelines are connected to the adjacent end of the top or bottom lines.
2. Make a layer filled with black. Select the path and fill with white. (If the path corners weren't connected you may not get the right selection).
3. Make the lines as a second path.
4. Stroke the lines path in black, I used line width 2.
5. If you want the final selection, copy the black and white result into a channel or a layer mask. Make a selection from that channel or layer mask.
RE: Path To Selection - rich2005 - 08-07-2022
Quote:I've tried the Join Strokes plugin but no success.
You can not have a "T" junction in a path.
My suggestions: Using Ofnuts path-inbetweener and bend-path
(1) A rectangular path, duplicated and spaced to a start and end
(2) Choose a number of steps for the spacing and apply
(3) Use the generated path and a curved paths envelope with bend-path
(4) Gives a set of discrete rectangles for a selection (or a fill)
[attachment=8450]
Too many screenshots so all in one. https://i.imgur.com/BS8yr5x.jpg
or The replicate-path-along-path plugin This does distort but might be useful. https://i.imgur.com/SQBfSCL.jpg
Make a larger than required, and discard the ends
RE: Path To Selection - Ofnuts - 08-07-2022
The selection is done "per stroke", and if the stroke is open it is automatically closed with a straight line from begin to end.
RE: Path To Selection - Krikor - 08-07-2022
Lady and Gentlemen,
The techniques presented here are very interesting and instructive.
Both teapote and rich2005's methods (path-inbetweener and bend-path + replicate-path-along-path) gave me more flexibility to deal with this situation.
I always struggled when I needed to produce this type of selection after having the paths created.
My approach was using the Path rungs plugin and in some cases I do:
- Stroke Path (Paint along the path);
- Apha for selection (selecting the created lines);
- Select to path.
This gives "something" close to what I wanted to select. But it doesn't always give something acceptable.
(08-07-2022, 07:59 AM)rich2005 Wrote:Quote:I've tried the Join Strokes plugin but no success.
You can not have a "T" junction in a path.
(08-07-2022, 07:59 AM)Ofnuts Wrote: The selection is done "per stroke", and if the stroke is open it is automatically closed with a straight line from begin to end.
I thought that creating anchors on the winding path and joining each of them with the anchors of the vertical strokes - at their intersections ("T" junction - as said by rich2005) would produce the desired selection...
Thank you all for the great help!