Clipping of text (or something equivalent)

Clipping of text (or something equivalent)

[Erik Margraf]

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Hi all,
I'd like to achieve in context something like I did in
the attachment (context.pdf). My idea was (and
that's the way how I did this in Inkscape):

   - Create Text
   - Double the text
   - Clip one for the upper half, clip the other for the lower half
   - Connect the two halves.

My (probably naive) approach to clipping text in context was:

-----
\starttext
\startuniqueMPgraphic{context}
  draw btex \bf Context etex xyscaled (4.0, 4.0) withcolor .8white ;
  clip currentpicture to unitsquare;
\stopuniqueMPgraphic
\null\dontcomplain
\uniqueMPgraphic{context}
-----

(Without the "clip" - line, the string "Context" is displayed. With
clipping, nothing is displayed.)

Any hint in the right direction towards clipping or maybe a better
way to achieve this is appreciated.

Thanks

Erik

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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 / http://www.ntg.nl/mailman/listinfo/ntg-context
webpage  : http://www.pragma-ade.nl / http://tex.aanhet.net
archive  : http://foundry.supelec.fr/projects/contextrev/
wiki     : http://contextgarden.net
___________________________________________________________________________________

Re: Clipping of text (or something equivalent)

[Hongwen Qiu]

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? 2010?06?07? 22:47, Erik Margraf ??:
> Hi all,
> I'd like to achieve in context something like I did in
> the attachment (context.pdf). My idea was (and
> that's the way how I did this in Inkscape):
>
>    - Create Text
>    - Double the text
>    - Clip one for the upper half, clip the other for the lower half
Actually, you only have to clip one, either the upper half or the lower 
half, since the latter elements added onto the canvas will mask the 
former elements.
>    - Connect the two halves.
>
> My (probably naive) approach to clipping text in context was:
>
> -----
> \starttext
> \startuniqueMPgraphic{context}
>   draw btex \bf Context etex xyscaled (4.0, 4.0) withcolor .8white ;
>   clip currentpicture to unitsquare;
take something like:
clip currentpicture to unitsquare scaled 8cm;
and you'll know what's the problem.
> \stopuniqueMPgraphic
> \null\dontcomplain
> \uniqueMPgraphic{context}
> -----
>
> (Without the "clip" - line, the string "Context" is displayed. With
> clipping, nothing is displayed.)
>
> Any hint in the right direction towards clipping or maybe a better
> way to achieve this is appreciated.
>
> Thanks
>
> Erik
>
>
> ___________________________________________________________________________________
> If your question is of interest to others as well, please add an entry to the Wiki!
>
> maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context
> webpage  : http://www.pragma-ade.nl / http://tex.aanhet.net
> archive  : http://foundry.supelec.fr/projects/contextrev/
> wiki     : http://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 / http://www.ntg.nl/mailman/listinfo/ntg-context
webpage  : http://www.pragma-ade.nl / http://tex.aanhet.net
archive  : http://foundry.supelec.fr/projects/contextrev/
wiki     : http://contextgarden.net
___________________________________________________________________________________

Re: Clipping of text (or something equivalent)

[Erik Margraf]

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Thanks!! For the hints to existing examples as well as for the
very instructive advice to clip to the enlarged unitsquare.

2010/6/7 Hongwen Qiu <qiuhongwen@gmail.com>

>  于 2010年06月07日 22:47, Erik Margraf 写道:
>
> Hi all,
> I'd like to achieve in context something like I did in
> the attachment (context.pdf). My idea was (and
> that's the way how I did this in Inkscape):
>
>    - Create Text
>    - Double the text
>    - Clip one for the upper half, clip the other for the lower half
>
> Actually, you only have to clip one, either the upper half or the lower
> half, since the latter elements added onto the canvas will mask the former
> elements.
>
>    - Connect the two halves.
>
> My (probably naive) approach to clipping text in context was:
>
> -----
> \starttext
> \startuniqueMPgraphic{context}
>   draw btex \bf Context etex xyscaled (4.0, 4.0) withcolor .8white ;
>   clip currentpicture to unitsquare;
>
> take something like:
> clip currentpicture to unitsquare scaled 8cm;
> and you'll know what's the problem.
>
> \stopuniqueMPgraphic
> \null\dontcomplain
> \uniqueMPgraphic{context}
> -----
>
> (Without the "clip" - line, the string "Context" is displayed. With
> clipping, nothing is displayed.)
>
> Any hint in the right direction towards clipping or maybe a better
> way to achieve this is appreciated.
>
> Thanks
>
> Erik
>
>
> ___________________________________________________________________________________
> If your question is of interest to others as well, please add an entry to the Wiki!
>
> maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context
> webpage  : http://www.pragma-ade.nl / http://tex.aanhet.net
> archive  : http://foundry.supelec.fr/projects/contextrev/
> wiki     : http://contextgarden.net
> ___________________________________________________________________________________
>
>
>
>
>
> ___________________________________________________________________________________
> If your question is of interest to others as well, please add an entry to
> the Wiki!
>
> maillist : ntg-context@ntg.nl /
> http://www.ntg.nl/mailman/listinfo/ntg-context
> webpage  : http://www.pragma-ade.nl / http://tex.aanhet.net
> archive  : http://foundry.supelec.fr/projects/contextrev/
> wiki     : http://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 / http://www.ntg.nl/mailman/listinfo/ntg-context
webpage  : http://www.pragma-ade.nl / http://tex.aanhet.net
archive  : http://foundry.supelec.fr/projects/contextrev/
wiki     : http://contextgarden.net
___________________________________________________________________________________