wrong positioning of MP graphic in layer

wrong positioning of MP graphic in layer

[Pablo Rodríguez]

Dear list,

I have the following sample:

    \definelayer[wrongpositioned][x=0mm, y=0mm, hoffset=0mm,
     voffset=48mm, state=start]
    \setuplayer[wrongpositioned]{\startMPcode draw
     (0mm,0mm)--(8mm,0mm)--(8mm,38mm)--(14mm,38mm) ; \stopMPcode}
    \setupbackgrounds[page][background={wrongpositioned}]
    \starttext
    \input knuth
    \stoptext

No matter what x, y, hoffset, voffset, location or corner, the MP
graphic is located where the page margins start.

Sorry for the so basic question, but what is wrong there?

Besides that, I don’t understand how positioning in layers work. I have
read the wiki, but I don’t get it (geometry isn’t my strength).

x, y, hoffset and voffset are fine. But location and corner are
mysterious to me. Changing them gave me no clue of what they are.

The four mentioned options set a point in the paper. The corner could be
the point of the graphic or text that would be set in the previously
defined point in the paper.

Well, if this isn’t wrong, what can location be?

Sorry, I know it‘s my lack of geometrical knowledge.

Could anyone be so kind to explain me what location and corner mean in
layers?

Many thanks for your help,


Pablo
-- 
http://www.ousia.tk
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___________________________________________________________________________________

Re: wrong positioning of MP graphic in layer

[luigi scarso]

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On Mon, Oct 7, 2013 at 5:56 PM, Pablo Rodríguez <oinos@gmx.es> wrote:

> Dear list,
>
> I have the following sample:
>
>     \definelayer[wrongpositioned][x=0mm, y=0mm, hoffset=0mm,
>      voffset=48mm, state=start]
>     \setuplayer[wrongpositioned]{\startMPcode draw
>      (0mm,0mm)--(8mm,0mm)--(8mm,38mm)--(14mm,38mm) ; \stopMPcode}
>     \setupbackgrounds[page][background={wrongpositioned}]
>     \starttext
>     \input knuth
>     \stoptext
>
> No matter what x, y, hoffset, voffset, location or corner, the MP
> graphic is located where the page margins start.
>
> Sorry for the so basic question, but what is wrong there?
>
> Besides that, I don’t understand how positioning in layers work. I have
> read the wiki, but I don’t get it (geometry isn’t my strength).
>
> x, y, hoffset and voffset are fine. But location and corner are
> mysterious to me. Changing them gave me no clue of what they are.
>
> The four mentioned options set a point in the paper. The corner could be
> the point of the graphic or text that would be set in the previously
> defined point in the paper.
>
> Well, if this isn’t wrong, what can location be?
>
> Sorry, I know it‘s my lack of geometrical knowledge.
>
> Could anyone be so kind to explain me what location and corner mean in
> layers?
>
> Many thanks for your help,
>
>
You can start from here

\setuppapersize[A4][A3]
\setuplayout[location=middle]
\showframe %showlayout
\definelayer[Page]
\setuplayer[Page][width=\paperwidth,height=\paperheight]
\setlayer[Page]{\startMPcode
draw    (0mm,0mm)--(PaperWidth,PaperHeight) withpen pencircle scaled 2pt
withcolor red;
draw    (0mm,PaperHeight)--(PaperWidth,0mm) withpen pencircle scaled 2pt
withcolor blue;
\stopMPcode}
\setupbackgrounds[page][background={Page}]


\starttext
    \input knuth
\stoptext


See also
http://wiki.contextgarden.net/Layers
-- 
luigi

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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: wrong positioning of MP graphic in layer

[Pablo Rodríguez]

On 10/07/2013 07:16 PM, luigi scarso wrote:
> On Mon, Oct 7, 2013 at 5:56 PM, Pablo Rodríguez wrote:
>  Dear list,
> 
>  I have the following sample:
>  [...]

Many thanks for your reply, Luigi.

I need to insist on this sample, because the layer doesn’t behave as such:

\definelayer[wrongpositioned][x=5000cm, y=5000cm, state=start]
\setuplayer[wrongpositioned]{\startMPcode draw
(0mm,0mm)--(8mm,0mm)--(8mm,38mm)--(14mm,38mm) ; \stopMPcode}
\setupbackgrounds[page][background={wrongpositioned}]
\starttext
\input knuth
\stoptext

x and y are outside the page in the layer definition (50 meters).

It should be a stupid error, but I cannot say which one.

It is a line that I need for my work.

>  Could anyone be so kind to explain me what location and corner mean in
>  layers?
>  
> You can start from here
> [...]

Many thanks for this excellent example. Playing with it is the best way
to learn.

Thanks again for your help,


Pablo
-- 
http://www.ousia.tk
___________________________________________________________________________________
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: wrong positioning of MP graphic in layer

[Hans Hagen]

On 10/7/2013 10:04 PM, Pablo Rodríguez wrote:
> On 10/07/2013 07:16 PM, luigi scarso wrote:
>> On Mon, Oct 7, 2013 at 5:56 PM, Pablo Rodríguez wrote:
>>   Dear list,
>>
>>   I have the following sample:
>>   [...]
>
> Many thanks for your reply, Luigi.
>
> I need to insist on this sample, because the layer doesn’t behave as such:
>
> \definelayer[wrongpositioned][x=5000cm, y=5000cm, state=start]
> \setuplayer[wrongpositioned]{\startMPcode draw
> (0mm,0mm)--(8mm,0mm)--(8mm,38mm)--(14mm,38mm) ; \stopMPcode}
> \setupbackgrounds[page][background={wrongpositioned}]
> \starttext
> \input knuth
> \stoptext
>
> x and y are outside the page in the layer definition (50 meters).
>
> It should be a stupid error, but I cannot say which one.
>
> It is a line that I need for my work.
>
>>   Could anyone be so kind to explain me what location and corner mean in
>>   layers?
>>
>> You can start from here
>> [...]
>
> Many thanks for this excellent example. Playing with it is the best way
> to learn.

you confuse \setuplayer with setlayer

-----------------------------------------------------------------
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               Ridderstraat 27 | 8061 GH Hasselt | The Netherlands
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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: wrong positioning of MP graphic in layer

[Pablo Rodríguez]

On 10/07/2013 10:48 PM, Hans Hagen wrote:
> On 10/7/2013 10:04 PM, Pablo Rodríguez wrote:
>> [...]
>>
>> I need to insist on this sample, because the layer doesn’t behave as such:
>>
>> \definelayer[wrongpositioned][x=5000cm, y=5000cm, state=start]
>> \setuplayer[wrongpositioned]{\startMPcode draw
>> (0mm,0mm)--(8mm,0mm)--(8mm,38mm)--(14mm,38mm) ; \stopMPcode}
>> [...]
> 
> you confuse \setuplayer with setlayer

Exactly my fault, Hans, Totally overseen.

Many thanks for your help,


Pablo
-- 
http://www.ousia.tk
___________________________________________________________________________________
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/
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___________________________________________________________________________________

Re: wrong positioning of MP graphic in layer

[luigi scarso]

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On Mon, Oct 7, 2013 at 10:04 PM, Pablo Rodríguez <oinos@gmx.es> wrote:

> On 10/07/2013 07:16 PM, luigi scarso wrote:
> > On Mon, Oct 7, 2013 at 5:56 PM, Pablo Rodríguez wrote:
> >  Dear list,
> >
> >  I have the following sample:
> >  [...]
>
> Many thanks for your reply, Luigi.
>
> I need to insist on this sample, because the layer doesn’t behave as such:
>
> \definelayer[wrongpositioned][x=5000cm, y=5000cm, state=start]
> \setuplayer[wrongpositioned]{\startMPcode draw
> (0mm,0mm)--(8mm,0mm)--(8mm,38mm)--(14mm,38mm) ; \stopMPcode}
> \setupbackgrounds[page][background={wrongpositioned}]
> \starttext
> \input knuth
> \stoptext
>
> x and y are outside the page in the layer definition (50 meters).
>
> It should be a stupid error, but I cannot say which one.
>
> It is a line that I need for my work.
>


I don't understand  what exactly you need, but I hope this can help you.

\showlayout
\showframe

\definelayer[wrongpositioned]

\setuplayer[wrongpositioned][x=\backspace, y=\dimexpr
\topspace+\headerheight\relax, state=start]

\setlayer[wrongpositioned]{\startMPcode
draw (0mm,0mm)--(TextWidth,0mm)--(TextWidth,TextHeight)--(0mm,TextHeight)
-- cycle withpen pencircle scaled 2 withcolor red;
drawarrow (0mm,0mm) -- (TextWidth,TextHeight) withpen pencircle scaled 2
withcolor blue;
drawarrow (0mm,TextHeight) -- (TextWidth,0mm) withpen pencircle scaled 2
withcolor black;
fill (0mm,0mm) -- (0mm,-FooterHeight) -- (TextWidth,-FooterHeight) --
(TextWidth,0mm) -- cycle withcolor blue;
\stopMPcode}

\setupbackgrounds[page][background={wrongpositioned}]

\starttext
\input knuth
\stoptext


-- 
luigi

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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: wrong positioning of MP graphic in layer

[Pablo Rodríguez]

On 10/07/2013 11:01 PM, luigi scarso wrote:
> On Mon, Oct 7, 2013 at 10:04 PM, Pablo Rodríguez wrote:
> 
>     I need to insist on this sample, because the layer doesn’t behave as
>     such:
> 
>     \definelayer[wrongpositioned][x=5000cm, y=5000cm, state=start]
>     \setuplayer[wrongpositioned]{\startMPcode draw
>     (0mm,0mm)--(8mm,0mm)--(8mm,38mm)--(14mm,38mm) ; \stopMPcode}
>     \setupbackgrounds[page][background={wrongpositioned}]
>     \starttext
>     \input knuth
>     \stoptext
> 
>     x and y are outside the page in the layer definition (50 meters).
> 
>     It should be a stupid error, but I cannot say which one.
>  
> I don't understand  what exactly you need, but I hope this can help you.

Many thanks for your reply, Luigi.

As Hans pointed out, I wrote \setuplayer instead of \setuplayer.

As weird as it sounds, yesterday I used my first layers ever (copied
from the wiki) and only in this one I typed \setuplayer instead of
\setlayer.

Well, it seems that I shouldn’t be sleepy when writing layers ;-).

Many thanks for your help again,


Pablo
-- 
http://www.ousia.tk
___________________________________________________________________________________
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
___________________________________________________________________________________