Drawing a circle in a circle

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grawr
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Drawing a circle in a circle

Postby grawr » Tue Jan 02, 2018 11:15 pm

Hey
I am a new member so I am not sure if this has been asked but I would like to draw a circle in another circle as accurately as possible (meaning they are parallel in a sense)

forum.png
forum.png (52.52 KiB) Viewed 1520 times


This is what I mean but is it possible to make the circle to have the same distance between each other? I used the circle tool for this. I am learning inkscape on my own so I would really appreciate simple solutions but I will look through all to learn as well. Thanks :D

Polygon
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Joined: Thu Dec 19, 2013 3:27 am

Re: Drawing a circle in a circle

Postby Polygon » Wed Jan 03, 2018 2:26 am

Look for the "Align+Distribute" (shift+cmd+A) panel and check its options:
Align+contribute.png
Align+contribute.png (47.07 KiB) Viewed 1502 times


Cheers
P.
Last edited by Polygon on Wed Jan 03, 2018 2:36 am, edited 2 times in total.

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Xav
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Re: Drawing a circle in a circle

Postby Xav » Wed Jan 03, 2018 2:34 am

Just to clarify, the English name of this dialog is "Align & Distribute". It's available via the "Object" menu (near the bottom), or via a button on the main toolbar.

If you need more help about how to use it, see part 38 of my tutorial series: viewtopic.php?f=6&t=11981
Co-creator of The Greys and Monsters, Inked - Inkscape drawn webcomics
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Lazur
Posts: 4717
Joined: Tue Jun 14, 2016 10:38 am

Re: Drawing a circle in a circle

Postby Lazur » Wed Jan 03, 2018 2:49 am

grawr wrote:This is what I mean but is it possible to make the circle to have the same distance between each other?


By duplicating a circle (Ctrl+D), and using the handles of the bounding box to resize -dragging the corner handle and holding Shift+Ctrl-, you can draw concentric circles.

However that won't make the resizing "stepped" at even distances.

There are many ways of doing so.
First, draw the outermost, than the innermost circle -either by aligning them or with this method-,
select both and combine them (Ctrl+K).

Then, with the path/path effects panel add an interpolate subpaths path effect and set the number of copies you are after.

Some considerations:
by default objects use visual bounding box, meaning the stroke set will add to the height/width in the top spinboxes.
Either switch to geometric bounding box in the preferences (Shift+Ctrl+P) or use no stroke but fill for the first part of the process.
(Also keep in mind there is an option to switch off scaling of strokes with the objects which might interfere in for the same reasons.)
Setting the fill and stroke can be done in the fill and stroke panel (Shift+Ctrl+F).

Then, the path effect results in a compound path. That is, if you have a white fill set, it might hide the black strokes below.
For practical reasons, convert it to a path (Ctrl+Shift+C), and break it apart (Ctrl+Shift+K).

Polygon
Posts: 393
Joined: Thu Dec 19, 2013 3:27 am

Re: Drawing a circle in a circle

Postby Polygon » Wed Jan 03, 2018 3:07 am

If you have 1 inner and 1 outer ring/circle of a specific size (Object->Transformation shift+cmd+M) you can interpolate the count of circles/rings in-between if you like:
Interpol.jpg
Interpol.jpg (69.45 KiB) Viewed 1482 times


Cheers
P.

grawr
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Re: Drawing a circle in a circle

Postby grawr » Wed Jan 03, 2018 10:54 am

Thank you so much for the replies, will have a go and try them out now :)

tylerdurden
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Location: Michigan, USA

Re: Drawing a circle in a circle

Postby tylerdurden » Thu Jan 04, 2018 12:28 am

Here's another way, using object center snap and Ctrl-Shift constraint when dragging the Ellipse tool:

Image
Have a nice day.

I'm using Inkscape 0.92.2 (5c3e80d, 2017-08-06), 64 bit win8.1

The Inkscape manual has lots of helpful info! http://tavmjong.free.fr/INKSCAPE/MANUAL/html/


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