Ellipse stroke selectiom

[al.da.drone]

Admittedly I'm not best at Gimp and my questions are a little stupid. Anyway I have created a circle, I have used the stroke selection to make an outline. I have noticed that the outline is a thicker in parts. I have attached a screenshot maybe I'm seeing things.  Am i doing something wrong?

Also is there a Gimp colour code chart showing the numbers to colours?

Thanks

[carmen]

(09-16-2018, 03:40 PM)al.da.drone Wrote: Admittedly I'm not best at Gimp and my questions are a little stupid. Anyway I have created a circle, I have used the stroke selection to make an outline. I have noticed that the outline is a thicker in parts. I have attached a screenshot maybe I'm seeing things.  Am i doing something wrong?

Also is there a Gimp colour code chart showing the numbers to colours?

Thanks

Why not:
* Selection to path
* Stroke path--and from the paths tab, one can also recover the seleccion, select streaking mode...
Anyway, and unless changed recently, Gimp's default  isn´t very hot on circles--the effect you mention usually comes from the way the circle is made: there are some path-plugins (i.e., by ofnuts http://gimp-path-tools.sourceforge.net/) which give far better circles.
Anyway, you can usually get much better effect on steaking an elliptic selection o a text by converting to path.

[Blighty]

Stroke Selection and Stroke Path use different algorithms. Stroke Path is usually much better. Use a plug-in to create a circular path, then stroke the path. If you don't have such a plug-in you can do Select > To Path to create a path. The path is not as good as using a plug-in, but is better than stroking a selection.

(There is Arkane Shape Creator, but it doesn't work with my 2.10. I have a smaller, simpler one that is good for most things)

Colour code charts are not Gimp specific. You can find many on the internet if you google.

[rich2005]

One abnormality of the stroke selection/path is loss of anti-aliasing when an even number of pixels is used. Since a circle is made up of stepped square pixels and on a large circle the quarter points tend to be 'flat', loss of anti-aliasing makes that part look 'thin'

   

Use an odd number of pixels or set a brush to the correct size and stroke with the brush tool as an alternative. (bottom of the stroke dialogue)

colours?
You can always dump this web-page as a PDF https://www.rapidtables.com/web/color/RGB_Color.html

I had that named colours as a palette one-time, can't seem to find it at the moment, it will be in my archive somewhere.
I am wrong, it is a standard Gimp palette

   

[al.da.drone]

Thanks for the reply I am going to work on the stroke selection bit today looks rather complicated to me but I'm sure I'll get to the bottom of it. With reference to the colours what do you mean when you say dumping as a pdf file? Looks like a great pallet editor

Thanks

[rich2005]

This is the help docs on stroking a path. https://docs.gimp.org/en/gimp-path-stroke.html

Bottom of that page, a short paragraph on using a paint tool. Works as it says.

Capturing

Depends on the (computer) tools you have available. I open a web page and the browser I use has a 'print to PDF' option. If you use Win10 it comes with a PDF printer, print to that, or there are free PDF printers around for Windows.

or

Not sure this is working in Windows, File -> Create -> From Web Page for a dump of the web-page as a long graphic image. Export that to PDF or some other format.

[al.da.drone]

Hi Rich, Ive have saved the webpage to a pdf now im a bit baffled on where it goes. I've look at the gimp folder cant see a pallet option. I'm a bit confused.

Thanks

[rich2005]

No, you can not do that It is for reference, If you want to, open as an image and then colour pick the colour you want.

The Palettes dock is found Windows -> Dockable Dialogues -> Palettes (1)
Click on the palette you want, that opens the editor (2) Any colour you choose becomes the foreground colour.

   

You will find the Gimp 'Named Colours' in the Palettes dock. The attached is a handy one, not standard Gimp, Pantone colours

Unzip it, put it in C:\Users\your-name\AppData\Roaming\GIMP\2.10\palettes

[al.da.drone]

Thank you so much. Didn't even know there was a pallet option. I've been struggling like you'll never believe using the change foreground colour option to the left of the screen. The problem I have and I have many on Gimp is that I'm a bit colour blind, so this is brilliant.

Anyway thanks for getting me out of trouble again...

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(09-16-2018, 04:10 PM)Blighty Wrote: Stroke Selection and Stroke Path use different algorithms. Stroke Path is usually much better. Use a plug-in to create a circular path, then stroke the path. If you don't have such a plug-in you can do Select > To Path to create a path. The path is not as good as using a plug-in, but is better than stroking a selection.

(There is Arkane Shape Creator, but it doesn't work with my 2.10. I have a smaller, simpler one that is good for most things)

Colour code charts are not Gimp specific. You can find many on the internet if you google.

Just had a look at http://gimp-path-tools.sourceforge.net/ for the ellipse plug-in cant quite work out which one I'm supposed to download. Im using 2.10 myself.
Maybe I should download the whole lot...

[carmen]

(09-17-2018, 08:53 AM)al.da.drone Wrote: Thank you so much. Didn't even know there was a pallet option. I've been struggling like you'll never believe using the change foreground colour option to the left of the screen. The problem I have and I have many on Gimp is that I'm a bit colour blind, so this is brilliant.

Anyway thanks for getting me out of trouble again...

---

(09-16-2018, 04:10 PM)Blighty Wrote: Stroke Selection and Stroke Path use different algorithms. Stroke Path is usually much better. Use a plug-in to create a circular path, then stroke the path. If you don't have such a plug-in you can do Select > To Path to create a path. The path is not as good as using a plug-in, but is better than stroking a selection.

(There is Arkane Shape Creator, but it doesn't work with my 2.10. I have a smaller, simpler one that is good for most things)

Colour code charts are not Gimp specific. You can find many on the internet if you google.

Just had a look at http://gimp-path-tools.sourceforge.net/ for the ellipse plug-in cant quite work out which one I'm supposed to download. Im using 2.10 myself.
Maybe I should download the whole lot...

The one you would want is ofn-path-to-shape (I have  found a use for almost all of them, but I use paths a lot)--and be sure to read the documentation inside the .zip file: I have put in a folder for easy reference. Unfortunately, this plugin deals with circles and regular poligons/stars--ellipses as such are missing. For 2.8, there is arakne shape creator 8, which works from selections instead of auxiliary paths: but it doesn't even load on my 2.10. I am not acquainted with the 'classic .scm script' mentioned in another reply--it may be easier to use.