Re: Question to covers

Re: Question to covers

[Henning Hraban Ramm]

Am 2018-07-28 um 10:12 schrieb Tomas Hala <tomas.hala@mendelu.cz>:

> Hi Hraban, Wolfgang and Hans,
> nobody else reacted so I am writing 

Better keep this on the list.

> Thanks to Hraban for the code and Wolfgang for its revision, it's a good
> material how to work with layers, measures  (I'll inspire by it) etc.

You’re welcome.

> 1. Is a ConTeXt layer accepted as a whole in commercial Acrobat, or is it
> visible as a heap of small objects? Or is it "only" better for more
> comfortable manipulation in ConTeXt?

I don’t understand the question.
A ConTeXt layer is not a PDF layer.
All the objects are manipulatable in Acrobat Pro (or another PDF editor),
there’s no grouping on the PDF level.

> 2. Is better to write it as much as possible at ConTeXt level (as Hraban or
> Wolfgang did), or is better to write it in lua? There is more than dozen
> measures... Also more computations are required and they are different
> for different kinds of covers (book bindings).

I guess it’s a matter of taste.
Of course calculations are easier in Lua, but in my image placement macros
I struggled a lot with numbers vs. measures/dimensions, regardless if in Lua
or on the TeX level.


Greetlings, Hraban
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Re: Question to covers

[Henning Hraban Ramm]

Am 2018-07-28 um 11:15 schrieb Henning Hraban Ramm <texml@fiee.net>:

> Am 2018-07-28 um 10:12 schrieb Tomas Hala <tomas.hala@mendelu.cz>:
>> 1. Is a ConTeXt layer accepted as a whole in commercial Acrobat, or is it
>> visible as a heap of small objects? Or is it "only" better for more
>> comfortable manipulation in ConTeXt?
> 
> I don’t understand the question.
> A ConTeXt layer is not a PDF layer.
> All the objects are manipulatable in Acrobat Pro (or another PDF editor),
> there’s no grouping on the PDF level.

If you need PDF layers, there are "viewer layers" in ConTeXt:

\defineviewerlayer[Ebene]
\setupviewerlayer[Ebene][
  state=start,
  visible=no,
  title=Test,
]

\starttext

Text

\startviewerlayer[Ebene]
{\bfa TOP SECRET}
\stopviewerlayer

More Text

\stoptext

AFAIK completely undocumented, I found them at http://source.contextgarden.net/tex/context/base/mkiv/attr-lay.mkiv
while tracking effects/properties (where these were implemented first).

While the example above works, I don’t get viewer layers in my current project, must investigate...
And then, if the combination of ConTeXt layers and viewer layers works (\setlayer within \start/stopviewerlayer?).


Greetlings, Hraban
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Re: Question to covers

[Wolfgang Schuster]

Henning Hraban Ramm schrieb am 28.07.18 um 12:01:
> Am 2018-07-28 um 11:15 schrieb Henning Hraban Ramm <texml@fiee.net>:
>
>> Am 2018-07-28 um 10:12 schrieb Tomas Hala <tomas.hala@mendelu.cz>:
>>> 1. Is a ConTeXt layer accepted as a whole in commercial Acrobat, or is it
>>> visible as a heap of small objects? Or is it "only" better for more
>>> comfortable manipulation in ConTeXt?
>> I don’t understand the question.
>> A ConTeXt layer is not a PDF layer.
>> All the objects are manipulatable in Acrobat Pro (or another PDF editor),
>> there’s no grouping on the PDF level.
> If you need PDF layers, there are "viewer layers" in ConTeXt:
>
> \defineviewerlayer[Ebene]
> \setupviewerlayer[Ebene][
>    state=start,
>    visible=no,
>    title=Test,
> ]
>
> \starttext
>
> Text
>
> \startviewerlayer[Ebene]
> {\bfa TOP SECRET}
> \stopviewerlayer
>
> More Text
>
> \stoptext
>
> AFAIK completely undocumented, I found them at http://source.contextgarden.net/tex/context/base/mkiv/attr-lay.mkiv
> while tracking effects/properties (where these were implemented first).
>
> While the example above works, I don’t get viewer layers in my current project, must investigate...
> And then, if the combination of ConTeXt layers and viewer layers works (\setlayer within \start/stopviewerlayer?).

You have to put the viewerlayer command within the the \setlayer argument.

Wolfgang
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Re: Viewer layers (was: Question to covers)

[Henning Hraban Ramm]

Am 2018-07-28 um 12:30 schrieb Wolfgang Schuster <wolfgang.schuster.lists@gmail.com>:
>> AFAIK completely undocumented, I found them at http://source.contextgarden.net/tex/context/base/mkiv/attr-lay.mkiv
>> while tracking effects/properties (where these were implemented first).
>> 
>> While the example above works, I don’t get viewer layers in my current project, must investigate...
>> And then, if the combination of ConTeXt layers and viewer layers works (\setlayer within \start/stopviewerlayer?).
> 
> You have to put the viewerlayer command within the the \setlayer argument.

Thank you! I just found it in
http://source.contextgarden.net/tex/context/base/mkiv/meta-ini.mkiv?search=viewerlayer

Also created a wiki page: http://wiki.contextgarden.net/Viewer_Layers

I still don’t get layers working in my big project. Thought it might be "scope=global", but that didn’t help.
Are there any settings that might influence viewer layers?

Greetlings, Hraban
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Re: Question to covers

[Hans Hagen]

On 7/21/2018 7:12 PM, Henning Hraban Ramm wrote:
> Hi Wolfgang,
> 
> thank you so much!
> 
> If we put the externalfigure setup in front, we can also calculate the spine width:
> 
> \getfiguredimensions[MAG]
> \definemeasure [SpineWidth] [\dimexpr0.01mm * (\noffigurepages/2) + 0.5mm\relax]
> 
> Where 0.01mm is the paper thickness (100 g/m2) and 0.5mm is the folding addition – ask your printshop/bookbinder how much they need!
it's on my agenda for a while to make some helpers for spines (esp handy 
for MP), there is actually already a variable for a while

but .. too hot now (and i need to work on the house)

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               Ridderstraat 27 | 8061 GH Hasselt | The Netherlands
        tel: 038 477 53 69 | www.pragma-ade.nl | www.pragma-pod.nl
-----------------------------------------------------------------
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Re: Question to covers

[Henning Hraban Ramm]

Hi Wolfgang,

thank you so much!

If we put the externalfigure setup in front, we can also calculate the spine width:

\getfiguredimensions[MAG]
\definemeasure [SpineWidth] [\dimexpr0.01mm * (\noffigurepages/2) + 0.5mm\relax]

Where 0.01mm is the paper thickness (100 g/m2) and 0.5mm is the folding addition – ask your printshop/bookbinder how much they need!


Greetlings, Hraban
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Am 2018-07-21 um 17:39 schrieb Wolfgang Schuster <schuster.wolfgang@gmail.com>:

> 
>> Henning Hraban Ramm 20. Juli 2018 um 20:49
>> 
>> Hi Tomáš,
>> 
>> I don’t know of anything existing.
>> Find attached what I use for a magazine – I include title and back pages in the main PDF (to get a complete issue for corrections and online distribution) and use that as externalfigure, just creating the spine anew.
> Hi Henning,
> 
> below is a modified version of your example where I changed a few things.
> 
> 1. I used the "measure" commands to set the spine values, the advantage of the \measure is that it falls back to 0pt when you try to use a undefined value.
> 
> 2. I determined the last page of the megazine with the \getfiguredimensions command, afterwards you can use the \noffigurepages command to get the last page of the document.
> 
> 3. I put the layer and frame settings for the \setlayerframed command in separate arguments.
> 
> 4. I got rid of the backgrounds setup for the layer. A better solution here is to create a page without margins which can be done with the "page" layout where you flush the collected content of the layer with the \flushlayer command.
> 
> 5. I set the texts for the isse number and title with the \setvariables command.
> 
> Wolfgang
> 
> %%%%%%
> \definemeasure [SpineWidth]  [6mm]
> \definemeasure [SpineOffset] [\dimexpr(\measure{SpineWidth}-9pt)/5\relax]
> 
> \definepapersize
>   [Cover]
>   [width=\dimexpr420mm+\measure{SpineWidth}\relax,
>    height=297mm]
> 
> \setuppapersize [Cover]
> 
> \setupexternalfigures [directory={_pdf}]
> 
> \useexternalfigure [MAG] [magazine.pdf]
> 
> \setvariables
>   [cover]
>   [issue={34},
>    topic={Topic}]
> 
> \setuplayout
>   [marking=on]
> 
> \definelayer
>   [whole]
>   [width=\paperwidth,
>    height=\paperheight]
> 
> \starttext
> 
> \startlayout [page]
> 
> \setlayer
>   [whole]
>   [x=0mm,
>    y=0mm]
>   {\getfiguredimensions[MAG]
>    \externalfigure[MAG][page=\noffigurepages]}
> 
> \setlayer
>   [whole]
>   [x=\dimexpr210mm+\measure{SpineWidth}\relax,
>    y=0mm]
>   {\externalfigure[MAG][page=1]}
> 
> \setlayerframed
>   [whole]
>   [x=210mm,
>    y=20mm]
>   [frame=off,
>    offset=overlay,
>    width=\measure{SpineWidth},
>    align=center]
>   {\getvariable{cover}{issue}}
> 
> \setlayerframed
>   [whole]
>   [x=210mm,
>    y=92mm]
>   [frame=off,
>    offset=overlay,
>    align=right,
>    width=\measure{SpineWidth},
>    height=190mm]
>   {\rotate
>      [rotation=90,
>       align={right,middle},
>       frame=off,
>       height=\measure{SpineWidth},
>       width=190mm]
>      {\vskip\measure{SpineOffset}
>       \vbox{MAGAZINE\hfill\getvariable{cover}{topic}}}}
> 
> \flushlayer [whole]
> 
> \stoplayout
> 
> \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
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> ___________________________________________________________________________________

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Re: Question to covers

[Wolfgang Schuster]

[-- Attachment #1.1: Type: text/plain, Size: 2564 bytes --]


> Henning Hraban Ramm <mailto:texml@fiee.net>
> 20. Juli 2018 um 20:49
>
> Hi Tomáš,
>
> I don’t know of anything existing.
> Find attached what I use for a magazine – I include title and back 
> pages in the main PDF (to get a complete issue for corrections and 
> online distribution) and use that as externalfigure, just creating the 
> spine anew.
Hi Henning,

below is a modified version of your example where I changed a few things.

1. I used the "measure" commands to set the spine values, the advantage 
of the \measure is that it falls back to 0pt when you try to use a 
undefined value.

2. I determined the last page of the megazine with the 
\getfiguredimensions command, afterwards you can use the \noffigurepages 
command to get the last page of the document.

3. I put the layer and frame settings for the \setlayerframed command in 
separate arguments.

4. I got rid of the backgrounds setup for the layer. A better solution 
here is to create a page without margins which can be done with the 
"page" layout where you flush the collected content of the layer with 
the \flushlayer command.

5. I set the texts for the isse number and title with the \setvariables 
command.

Wolfgang

%%%%%%
\definemeasure [SpineWidth]  [6mm]
\definemeasure [SpineOffset] [\dimexpr(\measure{SpineWidth}-9pt)/5\relax]

\definepapersize
   [Cover]
   [width=\dimexpr420mm+\measure{SpineWidth}\relax,
    height=297mm]

\setuppapersize [Cover]

\setupexternalfigures [directory={_pdf}]

\useexternalfigure [MAG] [magazine.pdf]

\setvariables
   [cover]
   [issue={34},
    topic={Topic}]

\setuplayout
   [marking=on]

\definelayer
   [whole]
   [width=\paperwidth,
    height=\paperheight]

\starttext

\startlayout [page]

\setlayer
   [whole]
   [x=0mm,
    y=0mm]
   {\getfiguredimensions[MAG]
    \externalfigure[MAG][page=\noffigurepages]}

\setlayer
   [whole]
   [x=\dimexpr210mm+\measure{SpineWidth}\relax,
    y=0mm]
   {\externalfigure[MAG][page=1]}

\setlayerframed
   [whole]
   [x=210mm,
    y=20mm]
   [frame=off,
    offset=overlay,
    width=\measure{SpineWidth},
    align=center]
   {\getvariable{cover}{issue}}

\setlayerframed
   [whole]
   [x=210mm,
    y=92mm]
   [frame=off,
    offset=overlay,
    align=right,
    width=\measure{SpineWidth},
    height=190mm]
   {\rotate
      [rotation=90,
       align={right,middle},
       frame=off,
       height=\measure{SpineWidth},
       width=190mm]
      {\vskip\measure{SpineOffset}
       \vbox{MAGAZINE\hfill\getvariable{cover}{topic}}}}

\flushlayer [whole]

\stoplayout

\stoptext
%%%%%%

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[-- Attachment #2: Type: text/plain, Size: 492 bytes --]

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Re: Question to covers

[Henning Hraban Ramm]

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Am 2018-07-20 um 17:16 schrieb Tomas Hala <tomas.hala@mendelu.cz>:

> I would like to ask whether we have got some module or macros
> for comfortable proposing of covers for different kinds of binding,
> containing automatic computation of the corresponding measurments
> and displaying the parts for bookbinders (eg cutting lines, 
> protection zones, bends, pasting parts etc.)

Hi Tomáš,

I don’t know of anything existing.
Find attached what I use for a magazine – I include title and back pages in the main PDF (to get a complete issue for corrections and online distribution) and use that as externalfigure, just creating the spine anew.
HTH

Greetlings, Hraban
---
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[-- Attachment #2: cover.tex --]
[-- Type: application/octet-stream, Size: 1564 bytes --]


\newdimen\Spinewidth
\newdimen\SpineOffset
\Spinewidth=6mm
\useexternalfigure[MAG][_pdf/magazine.pdf]
\def\ISSUE{34}
\def\TOPIC{Topic}
\def\LastPage{112} % don’t know how to compute that

\SpineOffset=\dimexpr(\Spinewidth - 9pt)/5\relax

\definepapersize[Cover]
  [width=\dimexpr 420mm + \Spinewidth\relax,
  height=297mm]
\setuppapersize[Cover]
\usetypescriptfile[myfont]
\setupbodyfont[myfont,9pt]
\setuplayout[
  marking=on,
]
\setuppagenumbering[state=stop]

\definelayer[whole]
  [width=\paperwidth,
  height=\paperheight]
\setupbackgrounds[page][background={whole},state=start]

\definecolor[cmykblack][c=0,m=0,y=0,k=1]
\setupcolors[
  pagecolormodel=auto,
  rgb=no,cmyk=yes,spot=no,
  state=start,
  overprint=yes,
  intent={Uncoated FOGRA29 (ISO 12647-2:2004)},
  textcolor=cmykblack
]
\starttext
\strut

\setlayer[whole]
  [hoffset=0mm,
  voffset=0mm]{%
  \externalfigure[MAG][page=\LastPage]}

\setlayer[whole]
  [hoffset=\dimexpr 210mm + \Spinewidth\relax,
  voffset=0mm]{%
  \externalfigure[MAG][page=1]}

\setlayerframed[whole]
    [x=210mm,
    y=20mm,
    frame=off,
    offset=overlay,
    width=\Spinewidth,
    align=center]{\ISSUE}

\setlayerframed[whole]
  [x=210mm,y=92mm,
  frame=off,
  offset=overlay,
  align=right,
  width=\Spinewidth,
  height=190mm,
  %height=\dimexpr\paperheight -15mm\relax,
  ]{%
  \rotate[rotation=90,
  align={right,middle},
  frame=off,
  height=\Spinewidth,
  width=190mm,
  ]{\vskip\SpineOffset\vbox{MAGAZINE\hfill\TOPIC}}}

\stoptext

[-- Attachment #3: Type: text/plain, Size: 492 bytes --]

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Question to covers

[Tomas Hala]

Hi all,

I would like to ask whether we have got some module or macros
for comfortable proposing of covers for different kinds of binding,
containing automatic computation of the corresponding measurments
and displaying the parts for bookbinders (eg cutting lines, 
protection zones, bends, pasting parts etc.)

The best,

Tomáš

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