[NTG-context] Re: Artifact in flow cell connection

[Bernd Donner via ntg-context <ntg-context@ntg.nl>]

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Hi everyone,

I have tested the minimal example mentioned above on a completely separate
Linux installation, and I am seeing the same observable artifact. This
leads me to believe that the issue might not be specific to my context
installation.

It seems that the overlay in the heading and the \shape{product} are
essential components that trigger the behavior I’m experiencing. At this
point, I'm uncertain whether this is an error on my part or a potential
bug—possibly related to flowcharts.

Could someone please confirm if the output of the minimal example matches
what is shown in the attached PDF?

Thank you!

Best,
Bernd

Am Fr., 11. Okt. 2024 um 22:47 Uhr schrieb Bernd Donner <
bleau1975@googlemail.com>:

> Hi,
>
> I have a broken flow cell connection in this minimal example. The broken
> flow cell is only triggered when drawn within a subsection with an overlay.
> The logic to create the underlined subsection is by the way copied from the
> metafun manual source. I do not have the slightest clue what is going wrong
> in this example. Thanks for ideas.
>
> Best, Bernd
>
> \usemodule[chart]
>
> \startuniqueMPgraphic{SectionUnderline}
>    path p;
>    p:= unitsquare xscaled OverlayWidth yscaled OverlayHeight;
>    draw llcorner p -- lrcorner p;
>    setbounds currentpicture to p;
>  \stopuniqueMPgraphic
>
> \defineoverlay[SectionUnderline][\uniqueMPgraphic{SectionUnderline}]
>
> \starttexdefinition unexpanded ChapterCommand #1#2
>   \framed [background=SectionUnderline] {#2}
> \stoptexdefinition
>
> \setuphead
>   [subsection]
>   [command=\ChapterCommand]
>
> \starttext
>
> \subsection[title=Introduction]
>
> \startFLOWchart[toolchain]
>
> \startFLOWcell
>   \location{1,1}
>   \connection [bt] {compiler}
> \stopFLOWcell
>
> \startFLOWcell
>   \name {compiler}
>   \location{1,2}
>   \shape{product}
> \stopFLOWcell
> \stopFLOWchart
>
> \FLOWchart[toolchain]
> \stoptext
>

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