Re: [Gimp-developer] Fade length setting for paint dynamics

[Ofnuts]

On 08/10/15 14:05, Jon Tait wrote:
1. The "percent" setting is relative to maximal image dimension (ie. 
image width or height, whichever is larger).
Ref: 
https://git.gnome.org/browse/gimp/tree/app/paint/gimppaintoptions.c?h=gimp-2-8#n591
And as far as I can see it *does* work as intended - eg. Paintbrush 
Tool with Dynamics=Fade Tapering, Fade length=100% will fade in/out 
over a *stroke* length equal to the larger of image width and height. 
And pro rata for other values of "percent". [But note that it is the 
maximal *image* dimension, not *drawable* dimension.]


I tried that and it didn't seem to work.



2. No it cannot currently be set programmatically. The fade parameters 
are *dynamic options* (ie. specific to the fade dynamic), not common 
*paint options* (ie. applicable to all paint tools regardless of 
dynamics). And setting dynamic options is AFAIK not currently 
supported via PDB. IIRC this problem has been noted before but I 
cannot find anything on bugzilla about it now. Note this is a wider 
problem than just fade length, it requires a generalized method of 
getting/setting *all* dynamic options.




Dynamics take their other values from the general context For instance 
the varying "color" in the Dynamics uses the context gradient, the brush 
size is the context brush size, etc... And if I change a 
dynamics-related setting (fo instance, the "repeat") for one tool 
(brush), the value changes for other tools (airbrush, clone...).

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Re: [Gimp-developer] Fade length setting for paint dynamics

[Ofnuts]

On 06/10/15 19:35, Joao S. O. Bueno wrote:

Sttting it programatically is likely a missing feature - it shouldbe
available as gimp-context-fade-set-length  -- and yes, it has nothing
to do with percents




Should I file a bug report for this?

What should be done with the percent "unit" then? Remove it?


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Re: [Gimp-developer] Fade length setting for paint dynamics

[Joao S. O. Bueno]

Sttting it programatically is likely a missing feature - it shouldbe
available as gimp-context-fade-set-length  -- and yes, it has nothing
to do with percents

On 2 October 2015 at 09:51, Ofnuts  wrote:
> I see that some changes have occured in that area in 2.8.14... However:
>
>  * I can't figure out the "percent" setting. Percent of what? From what
>I tried, it is not a percent of the total path length, not a percent
>of the stroke length, and not a percent of some image dimension.
>  * is there a way to set it programmatically? searching "fade",
>"context" or "dynamics" in the procedure browser doesn't show
>anything (not does looking at dir(gimp) in Python).
>
>
>
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[Gimp-developer] Fade length setting for paint dynamics

[Ofnuts]

I see that some changes have occured in that area in 2.8.14... However:

 * I can't figure out the "percent" setting. Percent of what? From what
   I tried, it is not a percent of the total path length, not a percent
   of the stroke length, and not a percent of some image dimension.
 * is there a way to set it programmatically? searching "fade",
   "context" or "dynamics" in the procedure browser doesn't show
   anything (not does looking at dir(gimp) in Python).



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