Mysterious clipping for shaded MetaFun page background

Mysterious clipping for shaded MetaFun page background

[Oliver Buerschaper]

Dear folks,

can anyone reproduce this? (Live ConTeXt on the garden seems to run  
into this \faststartcolor thing ... with pdfTeX.)

Uncomment the page background overlay and the top bit of the frames'  
titles will be chipped off ... doesn't happen for the plain vanilla  
color background on my machine.

---

\enableregime[utf]

\setupcolors[state=start]

\usetypescript[palatino][\defaultencoding]
\setupbodyfont[palatino,30pt]

\startMPenvironment
	\usetypescript[palatino][\defaultencoding]
	\switchtobodyfont[palatino,30pt]
\stopMPenvironment
	
\startuseMPgraphic{FunnyFrame}
	picture pic;
	path a,b;
	a := unitsquare xyscaled (OverlayWidth,OverlayHeight);
	pic := textext(\MPstring{FunnyFrame});
	setbounds pic to (boundingbox pic) enlarged (BodyFontSize/5);
	pic := pic shifted (OverlayWidth/2,OverlayHeight+(ypart ulcorner  
pic)/2);
	drawoptions(withpen pencircle scaled OverlayLineWidth withcolor  
OverlayLineColor);
	b := a topenlarged (ypart center pic-OverlayHeight);
	b := b smoothed BodyFontSize;
	fill b withcolor white;
	draw b;
	b := (boundingbox pic) smoothed (BodyFontSize/2);
	fill b withcolor yellow;
	draw b;
	draw pic withcolor black;
	setbounds currentpicture to a;
\stopuseMPgraphic

\defineoverlay[FunnyFrame][\useMPgraphic{FunnyFrame}]
\defineframedtext
	[FunnyText]
	[background=FunnyFrame,
	 frame=off,
	 rulethickness=3pt,
	 width=\textwidth]

\def\startFrame#1{%
	\setMPtext{FunnyFrame}{\hbox spread 1em{\hss\strut#1\hss}}%
	\startFunnyText}
\def\stopFrame{\stopFunnyText}

\startuniqueMPgraphic{shade}
	path p;
	p := unitsquare xyscaled (OverlayWidth,OverlayHeight);
	linear_shade(p,6,blue,white);
\stopuniqueMPgraphic
\defineoverlay[shade][\useMPgraphic{shade}]

%\setupbackgrounds
%	[page]
%	[background=shade]

%\setupbackgrounds
%	[page]
%	[background=color,
%	 backgroundcolor=blue]
	
\noheaderandfooterlines


\starttext
	
	\showframe
	
	\startFrame{Test 1}
		The quick brown fox jumps over the lazy dog.
	\stopFrame
	
	\startFrame{Test 2}
		The quick brown fox jumps over the lazy dog.
	\stopFrame

\stoptext

---

Cheerio,
Oliver
___________________________________________________________________________________
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: Mysterious clipping for shaded MetaFun page background

[Peter Rolf]

Oliver Buerschaper schrieb:
> Dear folks,
> 
> can anyone reproduce this? (Live ConTeXt on the garden seems to run  
> into this \faststartcolor thing ... with pdfTeX.)
>
> Uncomment the page background overlay and the top bit of the frames'  
> titles will be chipped off ... doesn't happen for the plain vanilla  
> color background on my machine.
> 
> ---
> 
> \enableregime[utf]
> 
> \setupcolors[state=start]
> 
<del>
> \usetypescript[palatino][\defaultencoding]
> \setupbodyfont[palatino,30pt]
</del>
> 
> \startMPenvironment
[global]
> 	\usetypescript[palatino][\defaultencoding]
> 	\switchtobodyfont[palatino,30pt]
> \stopMPenvironment
> 	
> \startuseMPgraphic{FunnyFrame}
> 	picture pic;
> 	path a,b;
> 	a := unitsquare xyscaled (OverlayWidth,OverlayHeight);

% = OverlayBox

> 	pic := textext(\MPstring{FunnyFrame});
> 	setbounds pic to (boundingbox pic) enlarged (BodyFontSize/5);
> 	pic := pic shifted (OverlayWidth/2,OverlayHeight+(ypart ulcorner  
> pic)/2);
> 	drawoptions(withpen pencircle scaled OverlayLineWidth withcolor  
> OverlayLineColor);
> 	b := a topenlarged (ypart center pic-OverlayHeight);
> 	b := b smoothed BodyFontSize;
> 	fill b withcolor white;
> 	draw b;

% there is filldraw

> 	b := (boundingbox pic) smoothed (BodyFontSize/2);
> 	fill b withcolor yellow;
> 	draw b;
> 	draw pic withcolor black;
> 	setbounds currentpicture to a;

        draw boundingbox currentpicture withcolor red;

> \stopuseMPgraphic
>

the boundingbox sets the final size of the gfx. if your gfx is larger
than the bb, things will overlap. just enlarge the bb, so that it fits
the gfx.


Peter


> \defineoverlay[FunnyFrame][\useMPgraphic{FunnyFrame}]
> \defineframedtext
> 	[FunnyText]
> 	[background=FunnyFrame,
> 	 frame=off,
> 	 rulethickness=3pt,
> 	 width=\textwidth]
> 
> \def\startFrame#1{%
> 	\setMPtext{FunnyFrame}{\hbox spread 1em{\hss\strut#1\hss}}%
> 	\startFunnyText}
> \def\stopFrame{\stopFunnyText}
> 
> \startuniqueMPgraphic{shade}
> 	path p;
> 	p := unitsquare xyscaled (OverlayWidth,OverlayHeight);
> 	linear_shade(p,6,blue,white);
> \stopuniqueMPgraphic
> \defineoverlay[shade][\useMPgraphic{shade}]
> 
> %\setupbackgrounds
> %	[page]
> %	[background=shade]
> 
> %\setupbackgrounds
> %	[page]
> %	[background=color,
> %	 backgroundcolor=blue]
> 	
> \noheaderandfooterlines
> 
> 
> \starttext
> 	
> 	\showframe
> 	
> 	\startFrame{Test 1}
> 		The quick brown fox jumps over the lazy dog.
> 	\stopFrame
> 	
> 	\startFrame{Test 2}
> 		The quick brown fox jumps over the lazy dog.
> 	\stopFrame
> 
> \stoptext
> 
> ---
> 
> Cheerio,
> Oliver
> ___________________________________________________________________________________
> 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
> ___________________________________________________________________________________
> 

___________________________________________________________________________________
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: Mysterious clipping for shaded MetaFun page background

[Hans Hagen]

Peter Rolf wrote:
> Oliver Buerschaper schrieb:
>> Dear folks,
>>
>> can anyone reproduce this? (Live ConTeXt on the garden seems to run  
>> into this \faststartcolor thing ... with pdfTeX.)

it may help to increase

\def\objectoffset{1cm}

(by default reused objects clip and this creates a virtual bbox)


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                                              | www.pragma-pod.nl
-----------------------------------------------------------------
___________________________________________________________________________________
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
___________________________________________________________________________________