[NTG-context] Does the return of "wdpart positionwhd" is the width of the box ?

[NTG-context] Does the return of "wdpart positionwhd" is the width of the box ?

[garulfo]

Hi,

the metafun function positionwidth doesn't seems to be available, so I triy to use  wdpart positionwhd.

But in the MVE, the green point is not at the expected position (on the right border of the frame).

%%%%%%%%%%%%%

\setupheadertexts[]
\setuppapersize[A8,landscape]
\setupbodyfont[40pt]

\startuseMPgraphic{MPMyPage}
StartPage ;
draw
  positionbox("locA")
  withpen pencircle scaled 5pt
  withcolor transparent(1,0.5,blue);

pair ThePoint;
ThePoint := positionxy("locA");

draw ThePoint
  withpen pencircle scaled 5pt
  withcolor red ;

draw ThePoint
  shifted (wdpart positionwhd("locA"),0)
  withpen pencircle scaled 5pt
  withcolor green ;

StopPage ;
\stopuseMPgraphic

\defineoverlay
  [OLMyPage]
  [\useMPgraphic{MPMyPage}]

\setupbackgrounds
  [page]
  [background={foreground,OLMyPage}]

\starttext

A
\framed
  [region=locA,
   offset=overlay,
   frame=off]
  {\TeX}.

\stoptext

%%%%%%%%%%%%%
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[NTG-context] Re: Does the return of "wdpart positionwhd" is the width of the box ?

[garulfo]

This is working:

draw ThePoint
  shifted (\MPw{locA},0)
  withpen pencircle scaled 5pt
  withcolor green ;
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[NTG-context] Re: Does the return of "wdpart positionwhd" is the width of the box ?

[Hans Hagen]

On 2/1/2025 10:15 PM, garulfo@azules.eu wrote:
> Hi,
> 
> the metafun function positionwidth doesn't seems to be available, so I triy to use  wdpart positionwhd.

in anch-pos.lmt :

function jobpositions.whd(id)
     local jpi = collected[id]
     if jpi then
         return jpi.w, jpi.h, jpi.d -- fix w
     end
end

you need to remake the format

mabe it makes sense to have

positionwd positionht positiondp

some day but as this went unnoticed i bet there is not that much demand 
for it

> But in the MVE, the green point is not at the expected position (on the right border of the frame).
> 
> %%%%%%%%%%%%%
> 
> \setupheadertexts[]
> \setuppapersize[A8,landscape]
> \setupbodyfont[40pt]
> 
> \startuseMPgraphic{MPMyPage}
> StartPage ;
> draw
>    positionbox("locA")
>    withpen pencircle scaled 5pt
>    withcolor transparent(1,0.5,blue);
> 
> pair ThePoint;
> ThePoint := positionxy("locA");
> 
> draw ThePoint
>    withpen pencircle scaled 5pt
>    withcolor red ;
> 
> draw ThePoint
>    shifted (wdpart positionwhd("locA"),0)
>    withpen pencircle scaled 5pt
>    withcolor green ;
> 
> StopPage ;
> \stopuseMPgraphic
> 
> \defineoverlay
>    [OLMyPage]
>    [\useMPgraphic{MPMyPage}]
> 
> \setupbackgrounds
>    [page]
>    [background={foreground,OLMyPage}]
> 
> \starttext
> 
> A
> \framed
>    [region=locA,
>     offset=overlay,
>     frame=off]
>    {\TeX}.
> 
> \stoptext
> 
> %%%%%%%%%%%%%
> ___________________________________________________________________________________
> If your question is of interest to others as well, please add an entry to the Wiki!
> 
> maillist : ntg-context@ntg.nl / https://mailman.ntg.nl/mailman3/lists/ntg-context.ntg.nl
> webpage  : https://www.pragma-ade.nl / https://context.aanhet.net (mirror)
> archive  : https://github.com/contextgarden/context
> wiki     : https://wiki.contextgarden.net
> ___________________________________________________________________________________


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___________________________________________________________________________________
If your question is of interest to others as well, please add an entry to the Wiki!

maillist : ntg-context@ntg.nl / https://mailman.ntg.nl/mailman3/lists/ntg-context.ntg.nl
webpage  : https://www.pragma-ade.nl / https://context.aanhet.net (mirror)
archive  : https://github.com/contextgarden/context
wiki     : https://wiki.contextgarden.net
___________________________________________________________________________________