Re: Starthanging alignment on grid

Thanks for your answer Wolfgang!

Where is verticalbox defined?
I keep getting the following error: ! Control sequence expected instead of
undefined.
Additionally where is lh and sd used in the height parameter defined?

On Mon, Jun 29, 2026 at 2:03 PM Wolfgang Schuster <
[email protected]> wrote:

> Am 26.06.2026 um 07:33 schrieb Pablo Rodriguez via ntg-context:
> > On 6/26/26 06:11, Aryeh Zapinsky wrote:
> >> Thanks! I used \vbox, but yes, that does work.
> >
> > Sorry, comparing the results of both `\hbox` and `\vbox` to what I had
> > in the first initial, the former option seemed the right one to me: I
> > thought the placement with \vbox was wrong (although this was the first
> > time I used the Hebrew script in my whole life 😅).
> >
> >> Do you know why the box is necessary?
> >
> > Since “TeX builds up a page as a nest of boxes within boxes within
> > boxes” (“TeX for the Impatient”, p. 17), I guess this is required for
> > ConTeXt to know how to snap the actual content to the grid.
> >
> > But I discovered the existence of `\snaptogrid` yesterday, so Hans,
> > Mikael or Wolfgang (among other wizards) can give a more accurate answer
> > to this.
>
> You have to measure the depth of your character and move the graphic
> with outline down with the measured (and scaled) value.
>
> \startuseMPgraphic{letter_w}
>    picture q;
>    q := outlinetext(\MPstring{hebrew_letter}) scaled 3 ;
>    for i within q:
>        j := j + 1;
>        draw pathpart i withpen pencircle scaled 2;
>    endfor;
> \stopuseMPgraphic
>
> \starttexdefinition hangingCharacter #1
>
>    \setMPtext{hebrew_letter}{#1}
>
>    \dowithnextbox
>      {\verticalbox
>         [height=2lh-1sd,
>          yoffset=-3\nextboxdp,
>          top=\vss]
>         {\hbox{\useMPgraphic{letter_w}}}}
>      \hbox{#1}
>
> \stoptexdefinition
>
> Wolfgang
>
>
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