Re: [Gimp-developer] Using GIMP in the textile industry

["Joao S. O. Bueno" <gwidion gmail com>]

Having read things to this point, a first short remark on
the feature you mentioned of allowing a pattern rotation/scaling before
filling up an area:

That'd be great. I remember we used to have this as a feature request a
long time ago
(10+ years), and it was dismissed at some point. That was well before we
had
on-canvas controls.

But I think it would be great to have that for the fill  tool, and maybe as
a post-adjustment when
dragging the pattern directly to the image.

As for the various instances you mention of "expanding a selection
containing a pattern",
the current way of doing this with GIMP would be to have initially a layer
with a small (GIMP) selection on it,
do the proofs there, then recreating a larger selection with the rectangle
tool, and re-filling the pattern.


Another thing on the top of my mind is the current behavior for a pattern
being used in a
palette-constrained GIMP image GIMP will transform the colors in the
pattern to near colors
on the image -  a behavior of replacing near-colors, and carefully add new
colors could
be implemented with the current plug-in system.

Best regards, and a nice LGM for however is there!

   js
> <-

On Tue, 28 May 2019 at 08:41, Sven Görsmann via gimp-developer-list <
gimp-developer-list gnome org> wrote:

> Simon Budig <simon budig de> schrieb am Di., 28. Mai 2019 13:24:
>
> > Hi all.
> >
> > Some of you will have noticed the Mail from Thomas Völker from the end
> > of last February. He was looking for some Developers for paid Gimp
> > development.
> >
> > [putting on my business head]
> >
> > I co-own and work for a small company doing embedded linux / customer
> > specific application development.
> >
> > After discussing this in the GIMP IRC channel I was ready to dip my toes
> > into the somewhat murky water of doing paid development for my hobby pet
> > project. So I went ahead and visited the company in question. It was a
> > nice and productive meeting with interesting questions and I'd like to
> > ask for your thoughts and input on the problems I'm about to explain.
> > I'll split up this mail, so that different problems can be discussed in
> > separate sub-threads.
> >
> > If you're interested in doing paid development work on some of these
> > problems please feel free to speak to me.
> >
> > If you're interested in the problems, have input on working with
> > printing in the textile industry please feel free to speak to me.
> >
> > I am currently in Saarbrücken and would welcome discussions about these
> > topics at LGM.
> >
> >
> > The Problem:
> >
> > The Company is based in Germany and is manufacturing carpets, printing
> > them with various customer specific designs.
> >
> > Due to changes in their software toolchain (product upgrades with very
> > unwelcome additional restrictions) they are looking for free
> > alternatives and one part of a new toolchain could be GIMP.
> >
> > During the two days of my (paid) visit there we tried to assess what
> > features they need and looked for ways to fit GIMP into their needs.
> >
> > I was very clear about that we need to be very careful about feature
> > additions and how they fit into our future roadmap. That having said I
> > really do believe that there are areas which would be useful for GIMP,
> > other things are maybe a bit more tricky to incorporate in a sane manner
> > into the GIMPs UI.
> >
> > As for the background: the company in question manufactures long
> > (dozends of meters) 4m wide runs of carpet, which then get printed on
> > with customer specific designs in three different production lines. One
> > of these lines uses a four color CMYK process, but the focus of this
> > project are the two other lines using machines to print 24 and 32
> > individually mixed colors.
> >
> > Since rooms wider than 4m are not uncommon site specific carpets need to
> > get prepared in a way that multiple runs of carpet can be placed next to
> > each other and the pattern globally match perfectly. This is one of the
> > main concerns and I have the impression that the current tools in GIMP
> > are not that great to deal with this kind of design constraints.
> > Adressing these might expand our audience further into the realm of the
> > textile industry, but I also believe that it might be helpful for people
> > working with textures. To develop tools that make it more easy to work
> > with this kind of constraints is probably the most tricky and
> > questionable part of the project.
> >
> > Lets first look at the in my opinion quite simple and uncontroversial
> > things for the GIMP.
> >
> > The two printing lines in question print with 24 resp. 32 customer
> > specific colors. Each carpet project has its own color palette and while
> > there is a predefined set of color recipes readily available it is not
> > uncommon that specific projects get their own customer specific
> > colors.
> >
> > That is the basic situation. I'll send some follow up mails for the
> > following sub-topics:
> >
> > - Better handling of colors in indexed images
> > - Changes to the UI
> > - Working with patterns
> > - Working with indexed images
> > - Integration into a Document Management System
> >
> > Thanks!
> >         Simon
> >
> > --
> >               simon budig de              http://simon.budig.de/
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