brynn wrote:I'm not clear what you're asking. What do you mean by "polyline"?
...when I break the path apart at a node it is usual for the adjacent ends of the two new paths to be non-tangential.
brynn wrote:And those lines are currently a stroke or open path? Or are they actually rectangular shaped closed (or nearly closed) paths (very skinny rectangle)?
It's not possible to taper a stroke. A stroke is the same width everywhere. But you can convert a stroke to a path (making the aforementioned really skinny rectangular shaped path. Then you can remove one of the corner nodes and adjust the node handle to make as much of a point as you want at the end.
(I see from your link that the image was made in GIMP, which probably means that it was originally in a raster format. So I'm wondering if you've used Trace Bitmap? If that's that case, then the lines you've shown should be the very skinny rectangular path. So to taper it, you would just remove one of the corner nodes, and use the node handle to adjust the taper. But I'm only guessing that you used Trace Bitmap, at this point.)
...when I break the path apart at a node it is usual for the adjacent ends of the two new paths to be non-tangential. Tangential to what?? Or non-tangential to what? When you break a path at a node, the 2 new nodes are on top of each other.
druban wrote:Well, although from time to time this request does come up, IMO it's a contradiction of sorts, in that as soon as you have a stroke that is not a uniform width it takes the same amount information to describe it as a filled object of the same shape
Inkscape has the pattern to path path effect (LPE) that does this, it remains editable, and for all purposes should deliver what you want.
fizzcat wrote:All I want is to be able to apply a triangular taper - just like the triangle in/out shape in the pen tool - to lines that have been already drawn.
fizzcat wrote:it says pattern width in units of length - but which units???
Want to get even more finicky? If you combine all your paths and apply/paste the path effect, you can change the dimensions (width, e.g.) of the pattern path (using the edit on canvas button) and all the subpaths will update instantly, as you might expect. BUT! if you break the combined path into individual paths, they remain linked to the same pattern! that means you can colour them differently but update their pattern sumultaneously. if you use this feature a lot - and who doesn't? - this can be very handy....
druban wrote:Absolutely reasonable, and I hope you don't think I am giving you a hard time here, I hope that the developers come up with a tool for you.
I too often need to do this, and since my system has not cut an edge for very long indeed (i.e. it's old) I find it faster to get my drawing to a certain point before starting to finish the lines with tapers etc. Therefore I use the ctrl+7 (paste path effect) shortcut after copying a path to the clipboard that has the taper style I want to apply, this goes very fast indeed. You can even pick ALL the paths that you want to apply the taper to, and then with one keystroke taper them at once. If your paths are several short paths combined into compound paths, as sometimes results from autotraced pictures, the paste path effect will apply the pattern to each distinct sub path... And none of this alters the colors or styles of the target path(s), which might have been a problem....
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