Re: Overprinting

Re: Overprinting

[Jan Heinen]

Here the results of my question:

I asked my print-service, if the pdf I generated with the 
code (look at the end of this email), is ok.
The text in the second frame should be overprinted.

The answer of the printer:

in the preflight he can see the overprinting,
in the print-preview he can't.
He was astonished - because he never had the difference 
between print-preview and preflight before.
He is using Adobe Acrobat 10.

Hope this information helps others to be cautious -
an maybe someone can tell what's to do.

Regards
Jannis



>  \setupcolors[state=start,rgb=no,cmyk=yes]
>  \definecolor[myc] [c=.40, m=.10, y=.50, k=0]
>  \starttext
>  \framed[%
>    width=80mm,height=50mm,
>    background=color,
>    backgroundcolor=myc,
>  ]
>   {1 Overprinted or not?}
>
>  \blank[big]
>
>  \framed[%
>    width=80mm,height=50mm,
>    background=color,
>    backgroundcolor=myc,
>  ]
>   {\startcolorintent[overprint]2 Overprinted or not?\stopcolorintent}
>
>  \blank[big]
>
>  \framed[%
>    width=80mm,height=50mm,
>    background=color,
>    backgroundcolor=myc,
>  ]
>   {\startcolorintent[knockout]3 Overprinted or not?\stopcolorintent}
>

>  \stoptext


Regards
Jannis

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___________________________________________________________________________________

Re: Overprinting

[Jan Heinen]

I have tried every combination of Luigis solution and get 
"Black text do not overprint" (german: schwarzer Text wird 
nicht überdruckt) for every page of the example for the 
following code in the Preflight of Acrobat:
Here is an online version of the Preflight: 
http://www.gronenberg.de/werkzeuge/pdf-online-check/upload.html

Here my code:



%%% overprint.tex
\nopdfcompression
\setupcolors[state=start,rgb=no,cmyk=yes,overprint=yes]
%% to be sure
\definecolor[CYAN][c=1.0,m=0,y=0,k=0]
\definecolor[MAGENTA][c=0,m=1,y=0,k=0]
\definecolor[YELLOW][c=0,m=0,y=1,k=0]
\starttext

\framed[background=color,backgroundcolor=CYAN,
frame=off,offset=.25cm,strut=no]{%BEGIN
\startcolorintent[overprint]

\framed[background=color,backgroundcolor=MAGENTA,
foregroundcolor=YELLOW,
align={lohi,middle},
frame=off,width=2.5cm,height=2cm]
{overprint \\ 
\startcolorintent[knockout]{knockout}\stopcolorintent}%

\stopcolorintent

\framed[background=color,backgroundcolor=MAGENTA,
foregroundcolor=YELLOW,align={lohi,middle},
frame=off,width=2.5cm,height=2cm]{knockout\\
\startcolorintent[overprint]{overprint}\stopcolorintent}%
}%END


\page

\framed[background=color,backgroundcolor=MAGENTA,
foregroundcolor=YELLOW,
align={lohi,middle},
frame=off,width=2.5cm,height=2cm]
{overprint \\ 
\startcolorintent[knockout]{knockout}\stopcolorintent}%

\page

\framed[background=color,backgroundcolor=MAGENTA,
foregroundcolor=YELLOW,
align={lohi,middle},
frame=off,width=2.5cm,height=2cm]
{overprint}%

\page

\framed[background=color,backgroundcolor=MAGENTA,
foregroundcolor=YELLOW,
align={lohi,middle},
frame=off,width=2.5cm,height=2cm]
{\startcolorintent[knockout]{knockout}\stopcolorintent}%

\page

\framed[background=color,backgroundcolor=MAGENTA,
foregroundcolor=YELLOW,align={lohi,middle},
frame=off,width=2.5cm,height=2cm]{knockout\\
\startcolorintent[overprint]{overprint}\stopcolorintent}%

\page

\framed[background=color,backgroundcolor=MAGENTA,
foregroundcolor=YELLOW,align={lohi,middle},
frame=off,width=2.5cm,height=2cm]{knockout}%

\page

\framed[background=color,backgroundcolor=MAGENTA,
foregroundcolor=YELLOW,align={lohi,middle},
frame=off,width=2.5cm,height=2cm]{\startcolorintent[overprint]{overprint}\stopcolorintent}%

\page

\framed[background=color,backgroundcolor=CYAN,
frame=off,offset=.25cm,strut=no]{%BEGIN
\startcolorintent[overprint]

\framed[background=color,backgroundcolor=MAGENTA,
foregroundcolor=YELLOW,
align={lohi,middle},
frame=off,width=2.5cm,height=2cm]
{overprint \\ 
\startcolorintent[knockout]{knockout}\stopcolorintent}%

\stopcolorintent
}

\page

\framed[background=color,backgroundcolor=CYAN,
frame=off,offset=.25cm,strut=no]{%BEGIN
\startcolorintent[overprint]

\framed[background=color,backgroundcolor=MAGENTA,
foregroundcolor=YELLOW,
align={lohi,middle},
frame=off,width=2.5cm,height=2cm]
{overprint}%

\stopcolorintent
}

\framed[background=color,backgroundcolor=CYAN,
frame=off,offset=.25cm,strut=no]{%BEGIN
\startcolorintent[overprint]

\framed[background=color,backgroundcolor=MAGENTA,
foregroundcolor=YELLOW,
align={lohi,middle},
frame=off,width=2.5cm,height=2cm]
{\startcolorintent[knockout]{knockout}\stopcolorintent}%

\stopcolorintent
}


\stoptext





Regards
Jannis

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___________________________________________________________________________________

Re: Overprinting

[luigi scarso]

On Fri, Feb 24, 2012 at 10:39 AM, Jan Heinen <JaHeinen@gmx.de> wrote:
> I got an answer from my printer to the example I have shown in this thread:
>
>
>> \framed[%
>>  width=80mm,height=50mm,
>>  background=color,
>>  backgroundcolor=myc,
>> ]
>>
>> {\startcolorintent[overprint]2 Overprinted or not?\stopcolorintent}
>
> His answer in german:
> "Die Texte, welche auf Kasten 2  stehen, sind innerhalb Ihrer erzeugten
> Datei zwar alle überdruckend eingestellt, visuell allerdings aussparend."
>
> My translation:
> The text on box 2 is formated as overprinted but visualy spared out.
>
> What the hell is going on?
>
> Regards
> Jannis

%%% overprint.tex
\nopdfcompression
\setupcolors[state=start,rgb=no,cmyk=yes,overprint=yes]
%% to be sure
\definecolor[CYAN][c=1.0,m=0,y=0,k=0]
\definecolor[MAGENTA][c=0,m=1,y=0,k=0]
\definecolor[YELLOW][c=0,m=0,y=1,k=0]
\starttext
\framed[background=color,backgroundcolor=CYAN,
frame=off,offset=.25cm,strut=no]{%BEGIN
\startcolorintent[overprint]
\framed[background=color,backgroundcolor=MAGENTA,
foregroundcolor=YELLOW,
align={lohi,middle},
frame=off,width=2.5cm,height=2cm]
{overprint \\ \startcolorintent[knockout]{knockout}\stopcolorintent}%
\stopcolorintent
\framed[background=color,backgroundcolor=MAGENTA,
foregroundcolor=YELLOW,align={lohi,middle},
frame=off,width=2.5cm,height=2cm]{knockout\\
\startcolorintent[overprint]{overprint}\stopcolorintent}%
}%END
\stoptext


$>gs -sDEVICE=tiffsep -dNOPAUSE -sOutputFile=z.tiff  overprint.pdf  -c quit

Then study z.tiff, z.tiff.Cyan.tif,...z.tiff.Black.tif  with use gimp.


-- 
luigi
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___________________________________________________________________________________

Re: Overprinting

[Jan Heinen]

I got an answer from my printer to the example I have shown 
in this thread:

 > \framed[%
 >  width=80mm,height=50mm,
 >  background=color,
 >  backgroundcolor=myc,
 > ]
 >
 > {\startcolorintent[overprint]2 Overprinted or 
not?\stopcolorintent}

His answer in german:
"Die Texte, welche auf Kasten 2  stehen, sind innerhalb 
Ihrer erzeugten Datei zwar alle überdruckend eingestellt, 
visuell allerdings aussparend."

My translation:
The text on box 2 is formated as overprinted but visualy 
spared out.

What the hell is going on?

Regards
Jannis


 >On Wed, Feb 22, 2012 at 11:59 PM, Jan Heinen 
<jahei...@gmx.de> wrote:
 >> I again must come to this point. At the end of this week 
I want to give my
 >> book (pdf) to the printer to print.
 >> But he says: Your texts are not overprinted over colored 
areas.
 >>
 >> What do I have to do?
 >>
 >>
 >>
 >> The company who prints my books says that my text
 >> is not overprinted over the framed boxes.
 >> They do a preflight with Adobe.
 >>
 >> I think, I made no mistake - what do you think?
 >> I hope it is not a missing  \par?
 >>
 >>
 >> \setupcolors[state=start,rgb=no,cmyk=yes]
 >> \definecolor[myc] [c=.40, m=.10, y=.50, k=0]
 >> \starttext
 >> \framed[%
 >>  width=80mm,height=50mm,
 >>  background=color,
 >>  backgroundcolor=myc,
 >> ]
 >>  {1 Overprinted or not?}
 >>
 >> \blank[big]
 >>
 >> \framed[%
 >>  width=80mm,height=50mm,
 >>  background=color,
 >>  backgroundcolor=myc,
 >> ]
 >>
 >> {\startcolorintent[overprint]2 Overprinted or 
not?\stopcolorintent}
 >>
 >> \blank[big]
 >>
 >> \framed[%
 >>  width=80mm,height=50mm,
 >>  background=color,
 >>  backgroundcolor=myc,
 >> ]
 >>
 >> {\startcolorintent[knockout]3 Overprinted or 
not?\stopcolorintent}
 >>
 >> \stoptext
 >>
 >>
 >> Regards
 >> Jannis
 >>
 >>
 >>
 >> 
___________________________________________________________________________________
 >> 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
 >>> 
___________________________________________________________________________________
 >>
 > Have you seen if this is ok ?
 > http://www.pragma-ade.com/general/magazines/mag-0006.pdf
 > (Use AdobeReader under linux with overprint enable)

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___________________________________________________________________________________

Re: Overprinting

[luigi scarso]

On Wed, Feb 22, 2012 at 11:59 PM, Jan Heinen <JaHeinen@gmx.de> wrote:
> I again must come to this point. At the end of this week I want to give my
> book (pdf) to the printer to print.
> But he says: Your texts are not overprinted over colored areas.
>
> What do I have to do?
>
>
>
> The company who prints my books says that my text
> is not overprinted over the framed boxes.
> They do a preflight with Adobe.
>
> I think, I made no mistake - what do you think?
> I hope it is not a missing  \par?
>
>
> \setupcolors[state=start,rgb=no,cmyk=yes]
> \definecolor[myc] [c=.40, m=.10, y=.50, k=0]
> \starttext
> \framed[%
>  width=80mm,height=50mm,
>  background=color,
>  backgroundcolor=myc,
> ]
>  {1 Overprinted or not?}
>
> \blank[big]
>
> \framed[%
>  width=80mm,height=50mm,
>  background=color,
>  backgroundcolor=myc,
> ]
>
> {\startcolorintent[overprint]2 Overprinted or not?\stopcolorintent}
>
> \blank[big]
>
> \framed[%
>  width=80mm,height=50mm,
>  background=color,
>  backgroundcolor=myc,
> ]
>
> {\startcolorintent[knockout]3 Overprinted or not?\stopcolorintent}
>
> \stoptext
>
>
> Regards
> Jannis
>
>
>
> ___________________________________________________________________________________
> 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
> ___________________________________________________________________________________

Have you seen if this is ok ?
http://www.pragma-ade.com/general/magazines/mag-0006.pdf
(Use AdobeReader under linux with overprint enable)

-- 
luigi
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___________________________________________________________________________________

Re: Overprinting

[Jan Heinen]

I again must come to this point. At the end of this week I 
want to give my book (pdf) to the printer to print.
But he says: Your texts are not overprinted over colored areas.

What do I have to do?



The company who prints my books says that my text
is not overprinted over the framed boxes.
They do a preflight with Adobe.

I think, I made no mistake - what do you think?
I hope it is not a missing  \par?


\setupcolors[state=start,rgb=no,cmyk=yes]
\definecolor[myc] [c=.40, m=.10, y=.50, k=0]
\starttext
\framed[%
   width=80mm,height=50mm,
   background=color,
   backgroundcolor=myc,
]
  {1 Overprinted or not?}

\blank[big]

\framed[%
   width=80mm,height=50mm,
   background=color,
   backgroundcolor=myc,
]

{\startcolorintent[overprint]2 Overprinted or 
not?\stopcolorintent}

\blank[big]

\framed[%
   width=80mm,height=50mm,
   background=color,
   backgroundcolor=myc,
]

{\startcolorintent[knockout]3 Overprinted or 
not?\stopcolorintent}

\stoptext


Regards
Jannis



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___________________________________________________________________________________

Re: Overprinting

[Peter Rolf]

Am 06.01.2012 16:54, schrieb Jan Heinen:
> The company who prints my books says that my text
> is not overprinted over the framed boxes.
> They do a preflight with Adobe.
> 
> I think, I made no mistake - what do you think?

hard to say without seeing your sources :-)

> I hope it is not a missing  \par?

probably not

>

your example works as expected here (tested with 08.11.2011 and 02.01.2012).

1 knockout (default)
2 overprinting
3 knockout (explicitly set)

as long as you use the second form, there shouldn't be a problem.


best wishes, peter

> 
> \setupcolors[state=start,rgb=no,cmyk=yes]
> \definecolor[myc] [c=.40, m=.10, y=.50, k=0]
> \starttext
> \framed[%
>   width=80mm,height=50mm,
>   background=color,
>   backgroundcolor=myc,
> ]
>  {1 Overprinted or not?}
> 
> \blank[big]
> 
> \framed[%
>   width=80mm,height=50mm,
>   background=color,
>   backgroundcolor=myc,
> ]
>  {\startcolorintent[overprint]2 Overprinted or not?\stopcolorintent}
> 
> \blank[big]
> 
> \framed[%
>   width=80mm,height=50mm,
>   background=color,
>   backgroundcolor=myc,
> ]
>  {\startcolorintent[knockout]3 Overprinted or not?\stopcolorintent}
> 
> \stoptext
> 
> 
> Regards
> Jannis
> 
> ___________________________________________________________________________________
> 
> 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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___________________________________________________________________________________

Overprinting

[Jan Heinen]

The company who prints my books says that my text
is not overprinted over the framed boxes.
They do a preflight with Adobe.

I think, I made no mistake - what do you think?
I hope it is not a missing  \par?


\setupcolors[state=start,rgb=no,cmyk=yes]
\definecolor[myc] [c=.40, m=.10, y=.50, k=0]
\starttext
\framed[%
   width=80mm,height=50mm,
   background=color,
   backgroundcolor=myc,
]
  {1 Overprinted or not?}

\blank[big]

\framed[%
   width=80mm,height=50mm,
   background=color,
   backgroundcolor=myc,
]
  {\startcolorintent[overprint]2 Overprinted or 
not?\stopcolorintent}

\blank[big]

\framed[%
   width=80mm,height=50mm,
   background=color,
   backgroundcolor=myc,
]
  {\startcolorintent[knockout]3 Overprinted or 
not?\stopcolorintent}

\stoptext


Regards
Jannis

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___________________________________________________________________________________

Re: overprinting

[Peter Rolf]

Hi Hans, hi all,

I use overprinting only for the texts  (not global). Most times the 
texts are stored in a \[h|v]box first, before they are added to the rest 
(offsets, background, whatever). So thinks look like this (very simplified):

\setbox\Textbox\hbox{\startoverprint Some text.\stopoverprint}

Overprinting should be activated only inside of this box. Sadly mkiv 
adds this attribute to most of the graphics with text. The first 
graphics is always OK, but the following graphics are overprinted as a 
whole.

I have compared the pdf of pdftex and luatex and the main difference is, 
that luatex 'optimizes' the overprinted texts by *grouping* them. 
Instead of two or more independent areas (one /GSoverprint ... 
/GSknockout for every text), like in mkii,

% pdftex
%----------------------------
/GSoverprint gs % text 1
BT
/Fm?? first overprinted text
...
/GSknockout gs

/GSoverprint gs % text 2
BT
/Fm?? second overprinted text
...
/GSknockout gs
%----------------------------


I get

% luatex
%----------------------------
/GSoverprint gs % text 1 and 2
BT
/Fm?? first overprinted text
...
/Fm?? second overprinted text
...
/GSknockout gs
%----------------------------


This is right from the point of overprinting, but the texts are still 
part of different graphics (rendering is done at different times). I 
guess this somehow corrupts the grouping. The first graphic in such a 
group is always OK, all following graphics are overprinted as a whole. I 
have tested this with more than two graphics (resulting in two multiple 
groups) and I get the same effect.

No minimal yet. Any thoughts?

Best wishes,  Peter



Hans Hagen schrieb:
> Peter Rolf wrote:
>> Hans Hagen schrieb:
>>> Peter Rolf wrote:
>>>
>>>> first tests show that there are still scope problems in mkiv (e.g. 
>>>> a complete button is set to overprint instead of the text only).
>>>> no clue yet, but i'm working on it...
>>>
>>> sure, as overprint is not aware of any content so you need to use 
>>> knockout then
>>>
>> mh, isn't \stopoverprint enabling knockout automatically?
>> or do i need a \ExtGState entry with knockout at the document level?
>> just started reading in the pdf reference manual...
>
> it depends ... we have none: no entry at all, knockout: some nil 
> entry, overprint: special entry
>
> the thing is that when we have globally overprint on, we need s local 
> knockout :
>
> \startoverprint
>   ... \bgroup ...
>   \startknockout
>     ...
>   \stopknockout
>   ... \egroup ...
> \stopoverprint
>
> is nicer than
>
> \startoverprint
>   ... \bgroup ...
>   \stopoverprint
>     ...
>   \startoverprint
>   ... \egroup ...
> \stopoverprint
>
> Hans
>
> -----------------------------------------------------------------
>                                           Hans Hagen | PRAGMA ADE
>               Ridderstraat 27 | 8061 GH Hasselt | The Netherlands
>      tel: 038 477 53 69 | fax: 038 477 53 74 | www.pragma-ade.com
>                                              | 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
> ___________________________________________________________________________________ 
>
>


___________________________________________________________________________________
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___________________________________________________________________________________

Re: overprinting

[Hans Hagen]

Peter Rolf wrote:
> Hans Hagen schrieb:
>> Peter Rolf wrote:
>>
>>> first tests show that there are still scope problems in mkiv (e.g. a 
>>> complete button is set to overprint instead of the text only).
>>> no clue yet, but i'm working on it...
>>
>> sure, as overprint is not aware of any content so you need to use 
>> knockout then
>>
> mh, isn't \stopoverprint enabling knockout automatically?
> or do i need a \ExtGState entry with knockout at the document level?
> just started reading in the pdf reference manual...

it depends ... we have none: no entry at all, knockout: some nil entry, 
overprint: special entry

the thing is that when we have globally overprint on, we need s local 
knockout :

\startoverprint
   ... \bgroup ...
   \startknockout
     ...
   \stopknockout
   ... \egroup ...
\stopoverprint

is nicer than

\startoverprint
   ... \bgroup ...
   \stopoverprint
     ...
   \startoverprint
   ... \egroup ...
\stopoverprint

Hans

-----------------------------------------------------------------
                                           Hans Hagen | PRAGMA ADE
               Ridderstraat 27 | 8061 GH Hasselt | The Netherlands
      tel: 038 477 53 69 | fax: 038 477 53 74 | www.pragma-ade.com
                                              | www.pragma-pod.nl
-----------------------------------------------------------------
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___________________________________________________________________________________

Re: overprinting

[Peter Rolf]

Hans Hagen schrieb:
> Peter Rolf wrote:
>
>> first tests show that there are still scope problems in mkiv (e.g. a 
>> complete button is set to overprint instead of the text only).
>> no clue yet, but i'm working on it...
>
> sure, as overprint is not aware of any content so you need to use 
> knockout then
>
mh, isn't \stopoverprint enabling knockout automatically?
or do i need a \ExtGState entry with knockout at the document level?
just started reading in the pdf reference manual...

> Hans
>
> -----------------------------------------------------------------
>                                           Hans Hagen | PRAGMA ADE
>               Ridderstraat 27 | 8061 GH Hasselt | The Netherlands
>      tel: 038 477 53 69 | fax: 038 477 53 74 | www.pragma-ade.com
>                                              | www.pragma-pod.nl
> -----------------------------------------------------------------
> ___________________________________________________________________________________ 
>
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> to the Wiki!
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Re: overprinting

[Hans Hagen]

Peter Rolf wrote:

> first tests show that there are still scope problems in mkiv (e.g. a 
> complete button is set to overprint instead of the text only).
> no clue yet, but i'm working on it...

sure, as overprint is not aware of any content so you need to use 
knockout then

Hans

-----------------------------------------------------------------
                                           Hans Hagen | PRAGMA ADE
               Ridderstraat 27 | 8061 GH Hasselt | The Netherlands
      tel: 038 477 53 69 | fax: 038 477 53 74 | www.pragma-ade.com
                                              | www.pragma-pod.nl
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Re: overprinting

[Peter Rolf]

Hans Hagen schrieb:
> Peter Rolf wrote:
>
>>>>>>>>>> overprinting is broken here. I used \dostartoverprint in the 
>>>>>>>>>> past, but this no longer works. What is the recommended way 
>>>>>>>>>> for overprinted text nowadays?
>
> (in mkiv) i redid overprints
>
many thanks!

> - it's now no longer a property but just a color feature
>
makes sense

> - the name chanegd to 'intent'
>
> - we now have \setupcolors[intent=none|overprint|knockout]; once set to
> != none it stays that way (global)
>
> - \startcolorintent[overprint|knockout] .. \stopcolorintent
>
> - the \startoverprint command is still there for backward compatibility
>
> in mkii i didn't change the mechanism, just the 'intent' key
>
> as this is s specialized feature i don't care too much about 
> compatibility
>
first tests show that there are still scope problems in mkiv (e.g. a 
complete button is set to overprint instead of the text only).
no clue yet, but i'm working on it...


> -----------------------------------------------------------------
>                                           Hans Hagen | PRAGMA ADE
>               Ridderstraat 27 | 8061 GH Hasselt | The Netherlands
>      tel: 038 477 53 69 | fax: 038 477 53 74 | www.pragma-ade.com
>                                              | 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
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> archive  : https://foundry.supelec.fr/projects/contextrev/
> wiki     : http://contextgarden.net
> ___________________________________________________________________________________ 
>
>


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Re: overprinting

[Hans Hagen]

Peter Rolf wrote:

>>>>>>>>> overprinting is broken here. I used \dostartoverprint in the 
>>>>>>>>> past, but this no longer works. What is the recommended way for 
>>>>>>>>> overprinted text nowadays?

(in mkiv) i redid overprints

- it's now no longer a property but just a color feature

- the name chanegd to 'intent'

- we now have \setupcolors[intent=none|overprint|knockout]; once set to
!= none it stays that way (global)

- \startcolorintent[overprint|knockout] .. \stopcolorintent

- the \startoverprint command is still there for backward compatibility

in mkii i didn't change the mechanism, just the 'intent' key

as this is s specialized feature i don't care too much about compatibility

-----------------------------------------------------------------
                                           Hans Hagen | PRAGMA ADE
               Ridderstraat 27 | 8061 GH Hasselt | The Netherlands
      tel: 038 477 53 69 | fax: 038 477 53 74 | www.pragma-ade.com
                                              | www.pragma-pod.nl
-----------------------------------------------------------------
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___________________________________________________________________________________

Re: overprinting

[Hans Hagen]

Peter Rolf wrote:
> Hans Hagen schrieb:
>> Peter Rolf wrote:
>>> Hans Hagen schrieb:
>>>> Peter Rolf wrote:
>>>>> Hi,
>>>>>
>>>>> overprinting is broken here. I used \dostartoverprint in the past, 
>>>>> but this no longer works. What is the recommended way for 
>>>>> overprinted text nowadays?
>>>>
>>>> just \startoverprint Overprint \stopoverprint
>>>>
>>> I see. A quick test shows, that this macro is not working with mkii 
>>> (an updated example is attached).
>>> Sadly this macro also does not work in my graphics, if I simply 
>>> exchange \dostartoverprint with \startoverprint (regardless of the 
>>> mark).
>>
>> you need to enable it with \setupcolors[overprint=yes]
>>
> I tried that one before, but it enables kind of global overprinting in 
> mkii (all but \startoverprinting, including the mp graphic). In case of 
> mkiv this breaks the \startoverprinting macro (so no overprinting at 
> all). I attached a new example.
> 
>> btw, your mkiv definitions do nothing (just toggle some flag) and the 
>> \dodriverthing's are gone anyway
>>
> Ok, then I must find a new working overprinting macro for my texts.

\setupcolors[overprint=yes]

\ifnum\contextmarkmode=4
\def\dostartoverprint%
   {\ctxlua{overprints.enabled=true}}
\def\dostopoverprint%
   {\ctxlua{overprints.enabled=false}}
\fi

this really does nothing, apart from enableng backend processing of set 
overprints

\starttext

\startMPcode
    fill unitcircle scaled 5cm;
\stopMPcode

\starttextoverprint starttextoverprint \stoptextoverprint % fails in 
both marks
\dostartoverprint dostartoverprint \dostopoverprint % fails in mkiv only
\startoverprint overprint \stopoverprint % fails in mkii only

\stoptext

well, in order to figure out the problem i need a better test file (at 
least one that shows the effect you want to achieve) as i have none here

-----------------------------------------------------------------
                                           Hans Hagen | PRAGMA ADE
               Ridderstraat 27 | 8061 GH Hasselt | The Netherlands
      tel: 038 477 53 69 | fax: 038 477 53 74 | www.pragma-ade.com
                                              | www.pragma-pod.nl
-----------------------------------------------------------------
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___________________________________________________________________________________

Re: overprinting

[Peter Rolf]

[-- Attachment #1: Type: text/plain, Size: 1996 bytes --]

Hans Hagen schrieb:
> Peter Rolf wrote:
>> Hans Hagen schrieb:
>>> Peter Rolf wrote:
>>>> Hi,
>>>>
>>>> overprinting is broken here. I used \dostartoverprint in the past, 
>>>> but this no longer works. What is the recommended way for 
>>>> overprinted text nowadays?
>>>
>>> just \startoverprint Overprint \stopoverprint
>>>
>> I see. A quick test shows, that this macro is not working with mkii 
>> (an updated example is attached).
>> Sadly this macro also does not work in my graphics, if I simply 
>> exchange \dostartoverprint with \startoverprint (regardless of the 
>> mark).
>
> you need to enable it with \setupcolors[overprint=yes]
>
I tried that one before, but it enables kind of global overprinting in 
mkii (all but \startoverprinting, including the mp graphic). In case of 
mkiv this breaks the \startoverprinting macro (so no overprinting at 
all). I attached a new example.

> btw, your mkiv definitions do nothing (just toggle some flag) and the 
> \dodriverthing's are gone anyway
>
Ok, then I must find a new working overprinting macro for my texts.

> -----------------------------------------------------------------
>                                           Hans Hagen | PRAGMA ADE
>               Ridderstraat 27 | 8061 GH Hasselt | The Netherlands
>      tel: 038 477 53 69 | fax: 038 477 53 74 | www.pragma-ade.com
>                                              | 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
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> archive  : https://foundry.supelec.fr/projects/contextrev/
> wiki     : http://contextgarden.net
> ___________________________________________________________________________________ 
>
>


[-- Attachment #2: ovp.tex --]
[-- Type: text/plain, Size: 545 bytes --]

\setupcolors[overprint=yes]

\ifnum\contextmarkmode=4
\def\dostartoverprint% yes... one of the category 'asking for trouble' :D
  {\ctxlua{overprints.enabled=true}}
\def\dostopoverprint%
  {\ctxlua{overprints.enabled=false}}
\fi

\starttext

\startMPcode
   fill unitcircle scaled 5cm;
\stopMPcode

\starttextoverprint starttextoverprint \stoptextoverprint % fails in both marks
\dostartoverprint dostartoverprint \dostopoverprint % fails in mkiv only
\startoverprint overprint \stopoverprint % fails in mkii only

\stoptext

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

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___________________________________________________________________________________

Re: overprinting

[Hans Hagen]

Peter Rolf wrote:
> Hans Hagen schrieb:
>> Peter Rolf wrote:
>>> Hi,
>>>
>>> overprinting is broken here. I used \dostartoverprint in the past, 
>>> but this no longer works. What is the recommended way for overprinted 
>>> text nowadays?
>>
>> just \startoverprint Overprint \stopoverprint
>>
> I see. A quick test shows, that this macro is not working with mkii (an 
> updated example is attached).
> Sadly this macro also does not work in my graphics, if I simply exchange 
> \dostartoverprint with \startoverprint (regardless of the mark).

you need to enable it with \setupcolors[overprint=yes]

btw, your mkiv definitions do nothing (just toggle some flag) and the 
\dodriverthing's are gone anyway

-----------------------------------------------------------------
                                           Hans Hagen | PRAGMA ADE
               Ridderstraat 27 | 8061 GH Hasselt | The Netherlands
      tel: 038 477 53 69 | fax: 038 477 53 74 | www.pragma-ade.com
                                              | www.pragma-pod.nl
-----------------------------------------------------------------
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maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context
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___________________________________________________________________________________

Re: overprinting

[Peter Rolf]

[-- Attachment #1: Type: text/plain, Size: 1435 bytes --]

Hans Hagen schrieb:
> Peter Rolf wrote:
>> Hi,
>>
>> overprinting is broken here. I used \dostartoverprint in the past, 
>> but this no longer works. What is the recommended way for overprinted 
>> text nowadays?
>
> just \startoverprint Overprint \stopoverprint
>
I see. A quick test shows, that this macro is not working with mkii (an 
updated example is attached).
Sadly this macro also does not work in my graphics, if I simply exchange 
\dostartoverprint with \startoverprint (regardless of the mark).


>
> -----------------------------------------------------------------
>                                           Hans Hagen | PRAGMA ADE
>               Ridderstraat 27 | 8061 GH Hasselt | The Netherlands
>      tel: 038 477 53 69 | fax: 038 477 53 74 | www.pragma-ade.com
>                                              | 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
> ___________________________________________________________________________________ 
>
>


[-- Attachment #2: ovp.tex --]
[-- Type: text/plain, Size: 453 bytes --]

\ifnum\contextmarkmode=4
\def\dostartoverprint% yes... one of the category 'asking for trouble' :D
  {\ctxlua{overprints.enabled=true}}
\def\dostopoverprint%
  {\ctxlua{overprints.enabled=false}}
\fi

\starttext

\starttextoverprint starttextoverprint \stoptextoverprint % fails in both marks
\dostartoverprint dostartoverprint \dostopoverprint % fails in mkiv only
\startoverprint overprint \stopoverprint % fails in mkii only

\stoptext

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

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___________________________________________________________________________________

Re: overprinting

[Hans Hagen]

Peter Rolf wrote:
> Hi,
> 
> overprinting is broken here. I used \dostartoverprint in the past, but 
> this no longer works. What is the recommended way for overprinted text 
> nowadays?

just \startoverprint Overprint \stopoverprint


-----------------------------------------------------------------
                                           Hans Hagen | PRAGMA ADE
               Ridderstraat 27 | 8061 GH Hasselt | The Netherlands
      tel: 038 477 53 69 | fax: 038 477 53 74 | www.pragma-ade.com
                                              | www.pragma-pod.nl
-----------------------------------------------------------------
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___________________________________________________________________________________

overprinting

[Peter Rolf]

[-- Attachment #1: Type: text/plain, Size: 334 bytes --]

Hi,

overprinting is broken here. I used \dostartoverprint in the past, but 
this no longer works. What is the recommended way for overprinted text 
nowadays?

*EXAMPLE ATTACHED*

MTXrun | current version: 2009.09.12 14:44
This is LuaTeX, Version beta-0.43.0-2009090309
pdfTeX 3.1415926-1.40.10-2.2 (Web2C 2009)


Best wishes,  Peter

[-- Attachment #2: ovp.tex --]
[-- Type: text/plain, Size: 374 bytes --]

\ifnum\contextmarkmode=4
\def\dostartoverprint% yes... one of the category 'asking for trouble' :D
  {\ctxlua{overprints.enabled=true}}
\def\dostopoverprint%
  {\ctxlua{overprints.enabled=false}}
\fi

\starttext

\starttextoverprint Overprint \stoptextoverprint % fails in both marks
\dostartoverprint Overprint \dostopoverprint % fails in mkiv only

\stoptext

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

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