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Evolution request - add the possibility to constrain the modification of a line/arrow (via its tip)

For now, when you modify a line or an arrow by grabbing one of it’s tip with the mouse and moving it, you have no possibility to constrain the movement.
Therefore, it can be hard (for instance) to make an horizontal line longer while keeping it horizontal.
It can also be hard to modify a line and make it really vertical.
(All the more when you work on a laptop with a high resolution)

So, it would be great to add a shortcut (for instance, CTRL + drag) to constrain the change of angle of the line/arrow to 15-degree interval, like this :

(I have checked the shortcuts user guide page, found interesting things, but not this one).

Thanks a lot.

Hello @arcqus
Do I understand the scenario right? Insert > Shape > Lines. I see the rotate button, but it contains 90 degrees step only:

But advanced settings contains rotation angle feature:

Please let us know if this is what you are looking for or provide us with details of your desired scenario.

Thanks for your answer.
That’s not exactly my use case.
The purpose is not really to rotate a shape, but to be able to constrain the angle during the modification of the shape.
In the meantime, I discovered that when you create an arrow or a line, you can constrain the angle by a 45° interval.
=> That’s great and allows you to easily create horizontal or vertical lines, and it should be also the case on modification
=> it would be even better if you could change the interval to 15° like in other softwares.

Sorry for bothering you. Do I understand it right that your desired goal is adding customed interval (15 degrees in your case) for line position process? I’ve compared our editor with MS Word, they have the same behavior: Monosnap
If it’s possible, please point me to 15° interval feature in other editor.

On my side, it’s more in the presentation app that feel the need for this feature.
The screen cap in my initial post it taken in LO, in the presentation app. There is an 18° (not 15) interval, and that’s handy.
In Inkscape, the interval is off by default (beginning of the bellow screencap), and if you press shift, it’s activated:

That’s what I have in mind.


Understood, thank you for your description. We need some time to discuss it internally. I will update this thread when we have something to share.

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Hello @arcqus
We added your suggestion to internal tracksystem (internal number - 61482). We have started working on it.
Thank you for your idea!

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