R: questions about snapping centers

If I understand correctly, you want to change the rotation center of the object, right?

You can do this in this way:
1. select the object (in select mode, F1).  You can see the handles that allow you to stretch it
2. click again the object and the rotation handles will appear
3. You can see in the middle of the object a little cross ("+").  That is the rotation center; you can click on it and move it wherever you like.

Hope this helps
--
Riccardo Bernardini
Tel          : +39-0432-55-8271
skype    :  bernardini.riccardo
LinkedIn : https://www.linkedin.com/in/riccardobernardini

________________________________________
Da: PipingDesignCentral <[email protected]>
Inviato: lunedì 19 novembre 2018 11:25
A: Inkscape User Community
Oggetto: Re: [Inkscape-user] questions about snapping centers

With CAD software the user as asked to specify a rotation center point after object(s). Is this not possible with Inkscape?


On Sun, Nov 18, 2018 at 8:53 PM brynn <[email protected]<mailto:[email protected]>> wrote:
>> For snap to center of object, could tooltip be "snap to center of object if
>> rotation origin has been moved" ?  It's a bit long, but much less confusing.

> That would be too long for a tooltip, and equally confusing because of  that.
> I also see some difficulties arising in translation to some languages.
> Multi-line tooltips should be avoided.

Yeah, I thought that might be the case.  There must be some way to make this
more clear....  Well, maybe changing rotation center to rotation origin will be
enough.  At least then "center" won't be used twice, and hopefully be less
confusing.

I'll put it in the same feature request that you  mentioned, just to make sure
it doesn't slip through the cracks.  And I'll make the bug report about the
other 2 things.

Thanks for explaining everything  :-)

brynn

PS - https://bugs.launchpad.net/inkscape/+bug/1803911
https://bugs.launchpad.net/inkscape/+bug/1803913

-----Original Message-----
From: Diederik van Lierop
Sent: Sunday, November 18, 2018 2:45 PM
To: brynn ; Inkscape User Community
Subject: Re: [Inkscape-user] questions about snapping centers

On 11/13/2018 08:40 PM, brynn wrote:
> Ooohh, so snap to center of object is meant to be used when the rotation
> center has been moved?  Hhmm....

You might be right that this is the only use case. The real problem here
is that the center of the object is not like the center of mass (which
it should be), but merely the center of the bounding box. Because of
this, it coincides with the default center of rotation.

> "rotation origin" would be an improvement - not sure about solution, but
> definite improvement
>
> For snap to center of object, could tooltip be "snap to center of object if
> rotation origin has been moved" ?  It's a bit long, but much less confusing.

That would be too long for a tooltip, and equally confusing because of
that. I also see some difficulties arising in translation to some
languages. Multi-line tooltips should be avoided.

> I don't suppose Inkscape can  identify when the rotation center has been
> moved, and then fallback to snap to center?  Too much ai?

This would be easy to implement, but I'm not sure if this helps in
making Inkscape more accessible. It could end up being rather annoying
if it's not clear to the user what is going on under the hood.

> But as Maren has clarified, is the fact that you can't snap to the center of
> objects in a group, using snap to rotation center, a bug?

It was intended to be like this, but it might not have been the best
solution. You could file a feature request for this though, requesting
that also the rotation centers of the individual items in a group are
snapped to.

> I also just now discovered that you can only snap to the center of a text
> object using snap to rotation center.  Snap to object will not snap to the
> center of text.  Or the center of imported raster image either.  Moving the
> rotation center has no effect.  It still won't snap.
>
> Should I make a bug report?

Yes, go ahead! That are bugs indeed, good catch!

Best regards,

Diederik



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