frames in ConTeXt and metafun

frames in ConTeXt and metafun

[Thomas A. Schmitz]

This is a very small cosmetic problem, but it bugs me: I'm preparing  
a background for a presentation, and I want a frame with a  
transparent color to appear on every slide, so I define an overlay  
and use metapost. I also want to frame some text elements, so I use a  
\framed. The problem is that in the \framed, the lines of the frame  
overlap at the edges, so with a transparent color, the corners are  
slightly darker. The minimal example below shows the problem. Any  
solution? Is it possible to have the frame around \framed drawn by  
metapost?

Thanks!

Thomas


%%%%% MINIMAL EXAMPLE %%%%%%

\setupcolors[state=start]

\definecolor [MyFrameColor]    [b=.55, t=.5, a=1]

\starttext

\startuseMPgraphic{fancyframe}
draw unitsquare
xyscaled(8cm,8cm)
withpen pencircle scaled 4pt
withcolor \MPcolor{MyFrameColor} ;
\stopuseMPgraphic

\useMPgraphic{fancyframe}

\framed 
[rulethickness=4pt,framecolor=MyFrameColor,height=8cm,width=8cm]{\strut}

\stoptext

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Re: frames in ConTeXt and metafun

[Peter Rolf]

[-- Attachment #1: Type: text/plain, Size: 1628 bytes --]

Hi Thomas,

Thomas A. Schmitz schrieb:
> This is a very small cosmetic problem, but it bugs me: I'm preparing  
> a background for a presentation, and I want a frame with a  
> transparent color to appear on every slide, so I define an overlay  
> and use metapost. I also want to frame some text elements, so I use a  
> \framed. The problem is that in the \framed, the lines of the frame  
> overlap at the edges, so with a transparent color, the corners are  
> slightly darker. The minimal example below shows the problem. Any  
> solution? Is it possible to have the frame around \framed drawn by  
> metapost?
>
sure (see attachment).

Greetings, Peter

> Thanks!
> 
> Thomas
> 
> 
> %%%%% MINIMAL EXAMPLE %%%%%%
> 
> \setupcolors[state=start]
> 
> \definecolor [MyFrameColor]    [b=.55, t=.5, a=1]
> 
> \starttext
> 
> \startuseMPgraphic{fancyframe}
> draw unitsquare
> xyscaled(8cm,8cm)
> withpen pencircle scaled 4pt
> withcolor \MPcolor{MyFrameColor} ;
> \stopuseMPgraphic
> 
> \useMPgraphic{fancyframe}
> 
> \framed 
> [rulethickness=4pt,framecolor=MyFrameColor,height=8cm,width=8cm]{\strut}
> 
> \stoptext
> 
> ___________________________________________________________________________________
> 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  : https://foundry.supelec.fr/projects/contextrev/
> wiki     : http://contextgarden.net
> ___________________________________________________________________________________
> 


[-- Attachment #2: frame.tex --]
[-- Type: text/plain, Size: 732 bytes --]

\setupcolors[state=start]

\definecolor [MyFrameColor]    [b=.55, t=.5, a=1]


\startuniqueMPgraphic{fancyframe}{linewidth,radius,color}
begingroup
  save c, lw ;
  color c ; c:= \MPvar{color} ;
  lw:= \MPvar{linewidth} ;
  
  draw unitsquare xyscaled(OverlayWidth-lw,OverlayHeight-lw)
  smoothed \MPvar{radius}
  withpen pencircle scaled lw
  withcolor c ;
endgroup ;
\stopuniqueMPgraphic

\defineoverlay[fancyframe]
  [\uniqueMPgraphic{fancyframe}{linewidth=4pt,radius=5pt,color=MyFrameColor}]

\presetlocalframed[fancy]
\setuplocalframed[fancy]
  [frame=off,background=fancyframe]



\starttext

\framed 
[rulethickness=4pt,framecolor=MyFrameColor,height=8cm,width=8cm]{}

\localframed[fancy]
[height=8cm,width=8cm]{}

\stoptext

[-- Attachment #3: Type: text/plain, Size: 487 bytes --]

___________________________________________________________________________________
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  : https://foundry.supelec.fr/projects/contextrev/
wiki     : http://contextgarden.net
___________________________________________________________________________________

Re: frames in ConTeXt and metafun

[Thomas A. Schmitz]

On Jul 12, 2007, at 10:04 AM, Peter Rolf wrote:

> Hi Thomas,
> sure (see attachment).
>
> Greetings, Peter

Thanks so much Peter! THis looks MUCH better. The more I use metafun,  
the more I love it.

Thomas
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___________________________________________________________________________________

Re: frames in ConTeXt and metafun

[Peter Münster]

On Thu, 12 Jul 2007, Thomas A. Schmitz wrote:

> On Jul 12, 2007, at 10:04 AM, Peter Rolf wrote:
> 
> > sure (see attachment).
> >
> Thanks so much Peter! THis looks MUCH better. The more I use metafun,  
> the more I love it.

Hello,

Did you take a look at the result with xpdf? There seems to be a problem
somewhere. But it looks very nice with acroread, indeed!

Cheers, Peter

-- 
http://pmrb.free.fr/contact/
___________________________________________________________________________________
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  : https://foundry.supelec.fr/projects/contextrev/
wiki     : http://contextgarden.net
___________________________________________________________________________________

Re: frames in ConTeXt and metafun

[Thomas A. Schmitz]

On Thu, 12 Jul 2007

> On Thu, 12 Jul 2007, Thomas A. Schmitz wrote:
> 
>> On Jul 12, 2007, at 10:04 AM, Peter Rolf wrote:
>>
>> > sure (see attachment).
>> >
>> Thanks so much Peter! THis looks MUCH better. The more I use metafun,
>> the more I love it.
> 
> Hello,
> 
> Did you take a look at the result with xpdf? There seems to be a problem
> somewhere. But it looks very nice with acroread, indeed!
> 
> Cheers, Peter

Yes you're right, I just looked at it on my linux box (usually I use OS 
X). The result is bizarre both in xpdf and in evince (there is no 
acroread for powerpc, shame on adobe!). But this seems to be merely an 
error in the viewer; I have often found the linux pdf viewers to be 
extremely inferior to what I get in OS X; one of the reasons why I will 
not be able to switch to linux anytime soom.

Best

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