color wheel in gimp method?

[denzjos]

(03-12-2020, 08:04 PM)Krikor Wrote:

(03-12-2020, 04:38 PM)denzjos Wrote: 1/ draw a circle
2/ on gimp menu : Select / To Path
3/ draw a straight vertical line  (lenght diameter circle)
4/ select the line (Fuzzy Select tool)
5/ on gimp menu : Edit / copy
6/ on gimp menu : Select / None
7/ on gimp menu : Edit / Brush strokes on path (value 9 in your case)
8/ clean up the rays
9/ color the sections ( fuzzy select section/ fill section with color 'Bucket Fill Tool')

PS : Brush strokes on path is a plugin from Ofnuts

Hi denzjos, I tried to follow the steps but in the end, I didn't get 9 equidistant sections.
The vertical green line in the center served as the basis for the rays (step 03).

Note that not all rays converge towards the center.

How do you make the result really a uniform division of the 9 rays around the circle?
Thx.

[quote pid='17209' dateline='1584043492']
Sorry about that, it seems that the angle from the first line is not known in the Ofnuts plugin.
I don't know if Ofnuts has an explanation about that?
There exist another script that do the job (I've seen there is a much better solution shown by rich2005 that is preferable)  
but I just want to mention the plugin here :
 
https://gimplearn.net/viewtopic.php/Mura...t?f=4&t=16

- gimp menu : File / New (equal layer dimensions - square)
- make a cross with 2 guides in the middle of the layer
- draw a circle with the centerpoint in the middle
- gimp menu : Edit / Stroke selection
- gimp menu : Select / None
- make a new transparent layer
- draw vertical line from the center of the circle to the circle circumference on the new layer
- gimp menu : Script-Fu / Mura Meister Copies..
- fill the values in from the centerpoints and the number of copies (= sections)
- the different sections are made  
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