some geometry stuff
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| some geometry stuff | Nik Omul | 21 Aug 06:09 |
| some geometry stuff | free | 21 Aug 11:44 |
| some geometry stuff | Alexandre Prokoudine | 21 Aug 13:25 |
| some geometry stuff | Nik Omul | 22 Aug 01:38 |
some geometry stuff
Hi!
A few thoughts here up for discussion
1. (see Attachment A) Is it possible to add Distance and Angle mesurements
to the Paths Tool's /Polygonal mode/?
Information could be displayed in the Status Bar just like for the Measure
tool.
No need for Info window, though.
Distance is relative to the previous anchor, angle relative to x-axis or
user defined
linear segment of another path. Specifying a segment sounds a bit too
complicated,
so the users would probably have to create two-anchor linear path as a
reference axis.
Paths Tool (or Measure tool) recognizing varying axes would add
extra power to GIMP graphics.
It would probably create a mess with the keys assignment
but maybe there is a solution for that too?
2. Would be nice to have an option for the Measure Tool to constrain
orientation line to integers other than 15 degrees. Say, in the tool options
menu
checkbox for 1 and 3 in addition to default 15 gedrees.
Am I the only one struggling with decimals?
Rotate tool has checkbox for 15 degree constraint, by the way.
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. 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.
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.
Problem with current procedure: rotation/pivot/lever point of Transform
tools
for some irregular shapes (e.g. L-shaped or boomerang-like selection)
is located outside object/selection, therefore, not a centroid.
Dragging rotation point over the object without reference point
gives inaccurate results. It matters when repetitive trnsformations
with the same object is required (e.g. a sequence of objects with
different angles of rotation around exact centroid).
It's pure math, but I don't know if GIMP has the ability to calculate
centroids too.
Some of the ideas might have surfaced here before,
I can't say I delved too deep to find that out.
If need be, more thorough arguments for usability importance can be
provided.
Perhaps, some ideas are too much for raster based editor. Need your
opinions.
Thanks for reading this!
http://i1271.photobucket.com/albums/jj621/NikOmul/edb82972.png Attachment A http://i1271.photobucket.com/albums/jj621/NikOmul/03de7f7c.png Attacment B
-----
Nik O.
Никита Омуль
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some geometry stuff
Em 21/8/2012 03:09, Nik Omul escreveu:
Hi!
A few thoughts here up for discussion 1. (see Attachment A) Is it possible to add Distance and Angle mesurements to the Paths Tool's /Polygonal mode/? Information could be displayed in the Status Bar just like for the Measure tool.
No need for Info window, though.
Distance is relative to the previous anchor, angle relative to x-axis or user defined
linear segment of another path. Specifying a segment sounds a bit too complicated,
so the users would probably have to create two-anchor linear path as a reference axis.
Paths Tool (or Measure tool) recognizing varying axes would add extra power to GIMP graphics.
It would probably create a mess with the keys assignment but maybe there is a solution for that too?2. Would be nice to have an option for the Measure Tool to constrain orientation line to integers other than 15 degrees. Say, in the tool options menu
checkbox for 1 and 3 in addition to default 15 gedrees. Am I the only one struggling with decimals? Rotate tool has checkbox for 15 degree constraint, by the way.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. 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.
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. Problem with current procedure: rotation/pivot/lever point of Transform tools
for some irregular shapes (e.g. L-shaped or boomerang-like selection) is located outside object/selection, therefore, not a centroid. Dragging rotation point over the object without reference point gives inaccurate results. It matters when repetitive trnsformations with the same object is required (e.g. a sequence of objects with different angles of rotation around exact centroid). It's pure math, but I don't know if GIMP has the ability to calculate centroids too.Some of the ideas might have surfaced here before, I can't say I delved too deep to find that out. If need be, more thorough arguments for usability importance can be provided.
Perhaps, some ideas are too much for raster based editor. Need your opinions.
Thanks for reading this!http://i1271.photobucket.com/albums/jj621/NikOmul/edb82972.png Attachment A http://i1271.photobucket.com/albums/jj621/NikOmul/03de7f7c.png Attacment B
----- Nik O.
Никита Омуль
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Hi, I'm no GIMP developer, but I will try to code one simple stuff that I think it's useful, snapping guides on the border and center of layers. So, when this is implemented, if you want to get a guide in the center of the canvas, it will be simple as drag a guide when a layer that have canvas size selected. For rule of thirds, I use a gimp plug-in that place them automatically on canvas. check this article by Prokoudine: http://libregraphicsworld.org/blog/entry/advanced-ways-to-create-guides-in-gimp
regards,
Thiago H. Petruccelli
some geometry stuff
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? :)
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?
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).
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 ;-)
Alexandre Prokoudine
http://libregraphicsworld.org
some geometry stuff
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_______________________________________________ gimp-developer-list mailing list
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Nik O.
Никита Омуль
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