Re: [Gimp-user] bucket fill

[Ofnuts <ofnuts laposte net>]

On 07/29/2013 11:56 AM, Uniklaps wrote:
> Win 7 64 bit
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> Hi,
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> how can I use the bucket-fill option to fill an area surrounded by a dotted
> line?
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> The dotted line is a path; so if I use a line for the dots, the bucket-fill
> works.
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> But how can I step back after filling to change the path's line into dots
> again?

Other have answered about creating a selection form the path and filling 
the selection, preferably on a distinct layer.

But even if you had a continuous line the plain-bucket fill would not 
give the expected result. Used that way it either leaves a faint space 
along the line, or gives it a jagged edge. The reason is that the edge 
of the line is made of anti-aliasing pixels, that either have a color 
which is  a blend of the line color and the background color, or are 
partially transparent if the line is on a transparent layer. Then the 
bucket-fill in 'normal' mode always either completely paints the pixels 
(jagged edge) or doesn't paint them at all (space) .

If the line is on a transparent layer you can use the bucket-fill in 
"behind" mode. In behind mode the painting only applies to whatever 
transparency is left in a pixel. If you produced the line from a path, 
make a selection from it and fill it. Otherwise, use the wand to make a 
rough selection on the background, then "grow" that selection to include 
the edge pixels of the line, then bucket-fill.