Hi all!

This week I do a similar implementation and mark it for merge request.
Here are a preview of the new branch running:
https://archive.org/details/inkscapepencilpressure

All the best, Jabier.



On Mon, 2017-08-21 at 22:36 -0400, Nate Yungkans wrote:

> Hi All,
> I'm Nate, the one who posted in the forums. I started just asking if
> the feature existed, but was told I should ask for it as a feature so
> here I am. Hello :)  First I wanted to say I love the program and
> find the features super useful. The powerstroke is one of the coolest
> features and I am having a lot of fun playing around with it. I have
> been an Adobe Illustrator for years but I am already enjoying
> inkscape more. Anyways, the reason I was asking about pressure
> sensitive line work is because it could be a huge time saver for
> manga art(or any extensive line art) where line work is incredibly
> important. It seems like all of the features actually exist in
> Inkscape, but not together as a tool. The calligraphy pen works
> nicely with pressure and the mass(for precision), but if the line
> needs to be edited in an meaningful way, they basically need to be
> redrawn.
>
> The powerstroke feature is awesome, but in its current state may
> require a lot of manual setting line thicknesses if there are a lot
> of complicated lines. Being able to control the stroke width via
> pressure would make it a very smooth process. Unfortunately it would
> not be as useful without a preview as you draw. Maybe it could use
> the same preview the calligraphy tool uses? Even if that isn't a 100%
> representation of the final product, it would guide the user to
> understand how much pressure they are applying.
>
> I asked about an auto simplify feature not only for the benefit of
> reducing the number of nodes, but also in aiding fast smoothed line
> work. I see that a line drawn with a pencil has a smoothing feature,
> maybe that can also be applied to the powerstroke outer lines as
> well; or maybe the pressure has an adjustable sample rate? 
>
> Additionally, it would be fantastic if there was a way to increase or
> decrease the relative distance of the powerstroke nodes from main
> path. In essence it would be like increasing or decreasing the width
> of the powerstroke. As an example I recorded my screen using a
> variable brush tool in Illustrator. It reads the pen pressure and
> applies it to the stroke, but also allows that stroke to be increases
> or decreased.
>
> Screen capture example Video: https://youtu.be/u78JlGD9Y34
>
> Example of the adobe brush tool simplify/fidelity options: https://yo
> utu.be/iIW_oeUcO2E?t=144
>
> That same tool in adobe also has settings to control/limit the brush
> size and shape. I've been utilizing mass, thinning and fixation to
> accomplish this effect in Inkscape.
>
>

>  https://youtu.be/iIW_oeUcO2E?t=97 
>
>
> I think that covers what I was originally asking about and more.
> Hopefully it was not too much. Thanks so much for all the hard work
> you have put into the program!  I know this software is a lot of work
> and new features are no small thing. I am not really a programmer so
> I can't contribute to the effort that way, but if you have a need or
> desire to include a UX/UI designer I would be happy to help!
>
> Manga line example that I did not draw:
>
>

> If you got through the whole email, thanks for listening! 
> -Nate
>
>
>
>
>
>
>
> --
> Nate
>
> On Mon, Aug 21, 2017 at 4:31 PM, Jabier Arraiza <jabier.arraiza@...360...3313...
> r.es> wrote:
> > I wait he present to the list to reply.
> >
> > Cheers, Jabier.
> >
> >
> > On Mon, 2017-08-21 at 05:44 -0600, brynn wrote:
> > > > Hi Brynn.
> > >
> > > Great and easy to do. I could do if we want. The problem is no
> > > realtime
> > > preview, so you need to finish the path to see the variable
> > width.
> > >
> > > Maybe I can add a preview while drawing but this is more complex.
> > >
> > > Cheers, Jabier.
> > > ________________________________________________
> > >
> > > Well I don't use this kind of feature myself.  So I couldn't say
> > if
> > > the lack of 
> > > live preview would be crippling.  I'll try to get the person who
> > > posted the 
> > > message to subscribe to the list, so he can give comments.
> > >
> > > How would it work?  Would it add pink nodes where the pressure is
> > > greater?  And 
> > > then the artist drags them after the path is finished?  Or would
> > the
> > > variable 
> > > width be immediately evident when the path is finished?
> > >
> > > And it would only work with graphics tablets?
> > >
> > > One benefit for such a tool (it seems to me) would be that the
> > number
> > > of nodes 
> > > probably would not build up so fast, as it does with Calligraphy.
> > >
> > > Thanks, Jabier.  I'll try to get this guy to subscribe so he can
> > > discuss 
> > > directly.
> > >
> > > All best,,
> > > brynn
> > >
> > >
> > >
> > > -----Original Message----- 
> > > From: Jabier Arraiza
> > > Sent: Monday, August 21, 2017 2:23 AM
> > > To: brynn ; Inkscape-Devel
> > > Subject: Re: [Inkscape-devel] pressure sensitivity for Pencil
> > tool
> > > using 
> > > powerstroke?
> > > 
> > -----------------------------------------------------------------
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