Re: [Gimp-developer] some geometry stuff

[Nik Omul <nik-omul yandex ru>]

Alexandre Prokoudine wrote
> 
> On Tue, Aug 21, 2012 at 10:09 AM, Nik Omul wrote:
> 
>> 1. (see Attachment A) Is it possible to add Distance and Angle
>> mesurements
>> to the Paths Tool's /Polygonal mode/?
> 
>>>It's what Inkscape does. Sounds like a reasonable request to me. Did
>>>you file a bug report? :)
> 
> Inkscape does a lot of things that GIMP doesn't. Should I file a bug
> report? 
> Hope I didn't sound like I was requesting to make GIMP another vector 
> graphics tool.
> 
> 
>> 2. Would be nice to have an option for the Measure Tool to constrain
>> orientation line to integers other than 15 degrees.
> 
>>>Isn't it already configurable in Preferences menu?
> 
> Is it? What version of GIMP? 2.9? 2.10? 
> In my 2.8 it must be well hidden or missing (another bug report?). 
> Any reference to documentation, please?  
> 
>> 3 (see Attachment B) Three additional marks on each Ruler corresponding
>> to
>> canvas' exact geometric center and to 'rule of third' imaginary lines.
>> Could be implemented in Cfig filter preview window as well.
> 
>>>That internal vector graphics editor will have to go anyway. In favour
>>>of real vector layers.
> 
>> The ability to snap guides to those marks would also be a must.
>> Could be displayed as notches different  in color and shape from
>> standard marks to avoid a confusion. Could be opted as Show/Hide in
>> View/Rulers/hide-show midpoint, thirds.
>> Allows to immediately find geometric center of a canvas,
>> rule of third points of intersection by navigating with a cursor
>> across canvas. Snapping guides to these marks takes less time than:
>> a. Image/Guides/New Guide (by Percent) - Horizontal, 50% (33.3 then 66.6)
>> b. Image/Guides/New Guide (by Percent) - Vertical, 50%, etc.,
>> not to mention calculations. I am aware of 3rd party plugin GAT,
>> but many others may not.
> 
>>>In my opinion this sounds like an overkill.
> 
>>>You don't need indicators on a ruler for snapping. This perfectly
>>>works on canvas. Please try Inkscape to see, how exactly (preferably,
>>>trunk build).
> 
> Forget about snapping. It wasn't a key point. To get a better idea of what
> I
> was aiming at, tell me, as an expert to layperson, how can I make a
> selection 
> expending from the exact center of canvas in one step?
> I'm more proficient in Inkscape than in GIMP but thanks for recurring
> attempts to 
> introduce it to me.
> 
>> 4. This idea was actually proposed by a friend of mine who is
>> a professional designer and no stranger to GIMP -
>> a centroid (center of gravity) for irregular shaped selection
>> as a reference point when using transformation tools.
> 
>>>Unified Transform tool has already been merged to Git master with a
>>>quite visible pivot mark. Most recent news at gimp.ru has a screenshot
>>>;-)
> 
> Actually I got myself acquainted with UTT specs at gui.gimp.org awhile
> ago.
> Again, visibility of pivot mark wasn't a point at all.
> 
>>>Alexandre Prokoudine
>>>http://libregraphicsworld.org
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-----
Nik O.
Никита Омуль
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