Creating circles etc...

Post questions on how to use or achieve an effect in Inkscape.
GregoryV1951
Posts: 8
Joined: Fri Jun 21, 2013 10:32 am

Creating circles etc...

Postby GregoryV1951 » Sat Oct 05, 2013 3:19 am

Is there a way to create a circle from the center out instead of from the outer edge of the circumference. That way I have a circle that I can grab and position in relation to the center of the circle than from the edge. This leads me to another question. Can I start creating a circle and then type in the desired radius/diameter. Now... can I create a circle and then change to handle from the corner of the bounding box to the center of this circle.
Thanks so much
Greg

Lazur
Posts: 4717
Joined: Tue Jun 14, 2016 10:38 am

Re: Creating circles etc...

Postby Lazur » Sat Oct 05, 2013 3:39 am

There is no such way I know of to change the handle's logic.

To position a circle center to a node there are some options:
Change the circle to a closed arch then enable snapping to cusp and smooth nodes, then you can simply place the circle in position.
Then change it back to a full circle.

In the development build
there is an option of snapping to the centre of the bounding boxes.*

After you have a circle in the right position,
you can change the radius of it through the xml editor panel (Ctrl+Shift+X).

There edit the rx and ry parts to the desired size.


In the development build there is an extension that can draw many things based on a triangle, even circles, so you may check that too.

*Edit: overlooked that, it's an already implemented feature.
Thank's for the correction!
Last edited by Lazur URH on Sat Oct 05, 2013 3:52 am, edited 1 time in total.

tylerdurden
Posts: 2344
Joined: Sun Apr 14, 2013 12:04 pm
Location: Michigan, USA

Re: Creating circles etc...

Postby tylerdurden » Sat Oct 05, 2013 3:45 am

From the help files:

" To force a circle to be drawn, hold down the Ctrl while dragging the mouse. This also allows ellipses with a height to width or width to height ratio that is either an integer or in the “Golden Ratio” to be drawn. Holding the Shift key down while dragging will create an ellipse centered around the starting point. "
http://tavmjong.free.fr/INKSCAPE/MANUAL ... -Arcs.html

Most types of nodes and handles can be snap points and/or targets. These include path nodes, regular Shape nodes and handles, Rectangle round-corner handles, and Rotation center handles. The options in the Snap Bar section for nodes and handles includes icons for enabling and disabling:

- Snap nodes or handles. If enabled, selected nodes are always snap points.
- Snap to paths.
- Snap to path intersections. Snap to paths must be enabled for this option to be enabled.
- Snap to cusp nodes. nodes.
- Snap to smooth nodes.
- Snap from and to midpoints of line segments. This includes straight line segments on either Shapes or paths).
- Snap from or to centers of objects. (The same point as the center of the bounding box.)

http://tavmjong.free.fr/INKSCAPE/MANUAL ... pping.html

I don't see a way to type in radius (like in a CAD application), but you can lock the object H &W in the toolbar and enter values (which correspond to diameter).
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/

GregoryV1951
Posts: 8
Joined: Fri Jun 21, 2013 10:32 am

Re: Creating circles etc...

Postby GregoryV1951 » Mon Oct 07, 2013 7:46 am

Lazur and tylerdurden, thank you so much for your information. Being so new to Inkscape let alone a svg program I'm not sure if I fully understand your answers. BUT, I do get the gist of it. This did lead me to utilize my basic understanding to come up with a solution.
Thanks again, GregoryV


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