[NTG-context] Working with variables in MkIV (\ setvariables, \getparameters etc)

2012-09-09 Thread Jaroslav Hajtmar

Hello ConTeXist,

Is it possible go through  all the keys of \setvariables (getvariable) 
macro and create the appropriate macros, as in the case of 
\getparameters macro?


I mean macro like \getallvariablesfrom[myfirstnamespace], which return 
contents of brackets macro \setvariables[myfirstnamespace] (it mean list 
of all assignments key=value ...)


In addition, you can assign all the variables one namespace to another 
namespace (or to create a loop which all variables passed and placed 
into the other namespace.)?


Thanx Jaroslav Hajtmar

Here is my inspiration of example :


\setvariables[myfirstnamespace][id=1, value={text}]

\starttext

% \getparameters[myfirstnamespace][\getallvariablesfrom[myfirstnamespace]]

% Now would be defined  macros \myfirstnamespaceid  (1) and 
\myfirstnamespacevalue  (text)



% Assign all the variables of [myfirstnamespace] namespace to 
[myotherspace] namespace?

%\setvariable[myotherspace][\getallvariablesfrom[myfirstnamespace]]

\stoptext
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Re: [NTG-context] 3D annotations problems

2012-09-09 Thread Michail Vidiassov
Dear Hans and All,


On Sat, Aug 18, 2012 at 10:00 PM, Michail Vidiassov mas...@iaas.msu.ru wrote:
 the examples from back-u3d.mkiv fail to work with latest beta
 (rectangled undefined message appears instead of annotation),
 but if \textwidth is replaced by in in the tex file 3D annotations
 appear OK.

in the latest minimals (2012.09.06 23:03) the following  example from
back-u3d.mkiv fails to work

\useexternalfigure  [test]  [test.prc]  [width=0.5\textwidth,
height=0.5\textwidth, display=u3d:myset:display:1,
controls=u3d:myset:controls:1]
\placefigure[here]{3d test}{\externalfigure[test]}

while after getting rid of \texwidth the following does:

\useexternalfigure  [test]  [test.prc]  [width=3in,   height=3in,
display=u3d:myset:display:1, controls=u3d:myset:controls:1]
\placefigure[here]{3d test}{\externalfigure[test]}

Is it a bug of the example got wrong with some changes in ConTeXt.

Sincerely, Michail
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Re: [NTG-context] Working with variables in MkIV (\ setvariables, \getparameters etc)

2012-09-09 Thread Wolfgang Schuster

Am 09.09.2012 um 10:42 schrieb Jaroslav Hajtmar hajt...@gyza.cz:

 Hello ConTeXist,
 
 Is it possible go through  all the keys of \setvariables (getvariable) macro 
 and create the appropriate macros, as in the case of \getparameters macro?
 
 I mean macro like \getallvariablesfrom[myfirstnamespace], which return 
 contents of brackets macro \setvariables[myfirstnamespace] (it mean list of 
 all assignments key=value ...)
 
 In addition, you can assign all the variables one namespace to another 
 namespace (or to create a loop which all variables passed and placed into the 
 other namespace.)?
 
 Thanx Jaroslav Hajtmar
 
 Here is my inspiration of example :
 
 
 \setvariables[myfirstnamespace][id=1, value={text}]
 
 \starttext
 
 % \getparameters[myfirstnamespace][\getallvariablesfrom[myfirstnamespace]]
 
 % Now would be defined  macros \myfirstnamespaceid  (1) and 
 \myfirstnamespacevalue  (text)
 
 
 % Assign all the variables of [myfirstnamespace] namespace to [myotherspace] 
 namespace?
 %\setvariable[myotherspace][\getallvariablesfrom[myfirstnamespace]]
 
 \stoptext

There is no way to access the list with the parameters from \setvariables but 
the question why you
want a command for each variable. In MkIV direct use of values in the form 
\myfirstnamespaceid
are replaced with something like \mynamespaceparameter{id} which has the 
advantage that you
can even use keys which haven’t been assigned before.

Wolfgang

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Re: [NTG-context] Working with variables in MkIV (\ setvariables, \getparameters etc)

2012-09-09 Thread Jaroslav Hajtmar

Thanx Wolfgang.

I do not know anything about such a possibility.
What do you mean? Can you show a simple example?
I tried several options but nothing works. Here are some examples:

\setvariables[myspacename][id=1, value={value}]

\getparameters[myotherspacename][id=1, value={value}]

\starttext

% \myspacenameid % not work
% \myspacename{id} % not work
% \myspacenameparameter{id} % not work
% ???

\myotherspacenameid % this works only




\stoptext


Thanx Jaroslav Hajtmar




Dne 9.9.2012 11:35, Wolfgang Schuster napsal(a):

Am 09.09.2012 um 10:42 schrieb Jaroslav Hajtmarhajt...@gyza.cz:

   

Hello ConTeXist,

Is it possible go through  all the keys of \setvariables (getvariable) macro 
and create the appropriate macros, as in the case of \getparameters macro?

I mean macro like \getallvariablesfrom[myfirstnamespace], which return contents 
of brackets macro \setvariables[myfirstnamespace] (it mean list of all 
assignments key=value ...)

In addition, you can assign all the variables one namespace to another 
namespace (or to create a loop which all variables passed and placed into the 
other namespace.)?

Thanx Jaroslav Hajtmar

Here is my inspiration of example :


\setvariables[myfirstnamespace][id=1, value={text}]

\starttext

% \getparameters[myfirstnamespace][\getallvariablesfrom[myfirstnamespace]]

% Now would be defined  macros \myfirstnamespaceid  (1) and 
\myfirstnamespacevalue  (text)


% Assign all the variables of [myfirstnamespace] namespace to [myotherspace] 
namespace?
%\setvariable[myotherspace][\getallvariablesfrom[myfirstnamespace]]

\stoptext
 

There is no way to access the list with the parameters from \setvariables but 
the question why you
want a command for each variable. In MkIV direct use of values in the form 
\myfirstnamespaceid
are replaced with something like \mynamespaceparameter{id} which has the 
advantage that you
can even use keys which haven’t been assigned before.

Wolfgang


   


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Re: [NTG-context] Working with variables in MkIV (\ setvariables, \getparameters etc)

2012-09-09 Thread Jaroslav Hajtmar

Thanx Wolfgang.

So far I have never worked with namespaces as follows. I thought that 
\setvariables macro automatically namespace for variables creates and 
sets the values in it. Setvariables somehow connected with the creation 
of macro variables in the namespace of the given name? It appears that 
the following example shows that it is not ...


\starttext

\definenamespace[myspace][name=myspace,command=yes,setup=yes,parent=one]

\setupmyspace[
id=3,
graphcolor=green,
]


\setvariables[myspace][
id=5,
graphcolor=blue,
]


\myspaceparameter{id}

\myspaceparameter{graphcolor}


\stoptext



Thanx Jaroslav




Dne 9.9.2012 12:45, Wolfgang Schuster napsal(a):

Am 09.09.2012 um 12:35 schrieb Jaroslav Hajtmarhajt...@gyza.cz:

   

  Thanx Wolfgang.
  
  I do not know anything about such a possibility.

  What do you mean? Can you show a simple example?
  I tried several options but nothing works. Here are some examples:
  
  \setvariables[myspacename][id=1, value={value}]
  
  \getparameters[myotherspacename][id=1, value={value}]
  
  \starttext
  
  % \myspacenameid % not work

  % \myspacename{id} % not work
  % \myspacenameparameter{id} % not work
  % ???
  
  \myotherspacenameid % this works only
  
  \stoptext
 

When you use \getparameter you have to define the command yourself, e.g.

   \def\mynamespaceid#1{\csname mynamespace#1\endcsname}

or you use \definenamespace which creates all these commands for you:

\starttext

\definenamespace[one][name=one,command=yes,setup=yes,parent=one]
\definenamespace[two][name=two,command=yes,setup=yes,parent=one]

% With this parent setting \twoparameter uses the values from \setupone
% when no value is set with \setuptwo.

\unprotect
\setuptwo[parent=\one]
\protect

\setupone[one=One,two=Two]

\starttabulate
\NC one:one \EQ \oneparameter{one} \NC\NR
\NC one:two \EQ \oneparameter{two} \NC\NR
\NC two:one \EQ \twoparameter{one} \NC\NR
\NC two:one \EQ \twoparameter{two} \NC\NR
\stoptabulate

\setuptwo[one=1,two=2]

\starttabulate
\NC one:one \EQ \oneparameter{one} \NC\NR
\NC one:two \EQ \oneparameter{two} \NC\NR
\NC two:one \EQ \twoparameter{one} \NC\NR
\NC two:one \EQ \twoparameter{two} \NC\NR
\stoptabulate

\stoptext

Wolfgang

   


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Re: [NTG-context] Working with variables in MkIV (\ setvariables, \getparameters etc)

2012-09-09 Thread Wolfgang Schuster

Am 09.09.2012 um 13:56 schrieb Jaroslav Hajtmar hajt...@gyza.cz:

 Thanx Wolfgang.
 
 So far I have never worked with namespaces as follows. I thought that 
 \setvariables macro automatically namespace for variables creates and sets 
 the values in it. Setvariables somehow connected with the creation of macro 
 variables in the namespace of the given name? It appears that the following 
 example shows that it is not …

The internal functioning of both methods is more or less the same, I will begin 
with \getparameters.

To set values as key-value-list you can use the \getparameters command, e.g.

  \getparameters[namespace][key1=value1,key2=value2,…]

When ConTeXt process this list it takes each entry which till the next comma or 
the end of the list and splits it in two parts which are on the left (the 
“key”)and the right (the “value”) of the = sign. After that it creates a new 
command whose name consist of the namespace and key, e.g. “\namespacekye1” 
which stores the content of the key, e.g. “value1”. To create the command which 
stores the value context uses \csname/\endcsname which allows one to use 
numbers, spaces etc. as part of the key.


The \setvariables command is a wrapper around \getparameters to store values in 
a certain namespace which can only be accessed with the \getvariable command.


With \definenamespace you can generate \setup… and \define… command which use 
itself \getparameters to store the values but the namespace itself uses symbols 
(? and @) which can’t be normally used to create a command.


What you always have to keep in mind is that what we call a namespace is 
nothing more than a certain string a command names which makes it possible to 
distinguish them because there a many setups which have a width key, e.g. 
tables can “\tablewidth” to store the value of the key while figures use 
“\figurewidth” to store the value etc.

In reality context uses namespace like “@@ef” in MkII and in MkIV namespace 
have the form “123” where instead of letters numbers are used.

Wolfgang
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Re: [NTG-context] 3D annotations problems

2012-09-09 Thread Wolfgang Schuster

Am 09.09.2012 um 11:00 schrieb Michail Vidiassov mas...@iaas.msu.ru:

 Dear Hans and All,
 
 
 On Sat, Aug 18, 2012 at 10:00 PM, Michail Vidiassov mas...@iaas.msu.ru 
 wrote:
 the examples from back-u3d.mkiv fail to work with latest beta
 (rectangled undefined message appears instead of annotation),
 but if \textwidth is replaced by in in the tex file 3D annotations
 appear OK.
 
 in the latest minimals (2012.09.06 23:03) the following  example from
 back-u3d.mkiv fails to work
 
 \useexternalfigure  [test]  [test.prc]  [width=0.5\textwidth,
 height=0.5\textwidth, display=u3d:myset:display:1,
 controls=u3d:myset:controls:1]
 \placefigure[here]{3d test}{\externalfigure[test]}
 
 while after getting rid of \texwidth the following does:
 
 \useexternalfigure  [test]  [test.prc]  [width=3in,   height=3in,
 display=u3d:myset:display:1, controls=u3d:myset:controls:1]
 \placefigure[here]{3d test}{\externalfigure[test]}
 
 Is it a bug of the example got wrong with some changes in ConTeXt.

It should work when you use “width=\the\dimexpr\textwidth/2\relax” or 
“width=\the\dimexpr0.5\textwidth\relax”.

Wolfgang
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Re: [NTG-context] Working with variables in MkIV (\ setvariables, \getparameters etc)

2012-09-09 Thread Jaroslav Hajtmar


Thanx Wolfgang
for your explanations.

Jaroslav Hajtmar


Dne 9.9.2012 14:44, Wolfgang Schuster napsal(a):

Am 09.09.2012 um 13:56 schrieb Jaroslav Hajtmarhajt...@gyza.cz:

   

Thanx Wolfgang.

So far I have never worked with namespaces as follows. I thought that 
\setvariables macro automatically namespace for variables creates and sets the 
values in it. Setvariables somehow connected with the creation of macro 
variables in the namespace of the given name? It appears that the following 
example shows that it is not …
 

The internal functioning of both methods is more or less the same, I will begin 
with \getparameters.

To set values as key-value-list you can use the \getparameters command, e.g.

   \getparameters[namespace][key1=value1,key2=value2,…]

When ConTeXt process this list it takes each entry which till the next comma or 
the end of the list and splits it in two parts which are on the left (the 
“key”)and the right (the “value”) of the = sign. After that it creates a new 
command whose name consist of the namespace and key, e.g. “\namespacekye1” 
which stores the content of the key, e.g. “value1”. To create the command which 
stores the value context uses \csname/\endcsname which allows one to use 
numbers, spaces etc. as part of the key.


The \setvariables command is a wrapper around \getparameters to store values in 
a certain namespace which can only be accessed with the \getvariable command.


With \definenamespace you can generate \setup… and \define… command which use 
itself \getparameters to store the values but the namespace itself uses symbols 
(? and @) which can’t be normally used to create a command.


What you always have to keep in mind is that what we call a namespace is 
nothing more than a certain string a command names which makes it possible to 
distinguish them because there a many setups which have a width key, e.g. 
tables can “\tablewidth” to store the value of the key while figures use 
“\figurewidth” to store the value etc.

In reality context uses namespace like “@@ef” in MkII and in MkIV namespace have 
the form “123” where instead of letters numbers are used.

Wolfgang
   


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Re: [NTG-context] 3D annotations problems

2012-09-09 Thread Michail Vidiassov
Dear Wolfgang and All,

On Sun, Sep 9, 2012 at 4:52 PM, Wolfgang Schuster
wolfgang.schus...@gmail.com wrote:
 in the latest minimals (2012.09.06 23:03) the following  example from 
 back-u3d.mkiv fails to work

 \useexternalfigure  [test]  [test.prc]  [width=0.5\textwidth, ...

 It should work when you use “width=\the\dimexpr\textwidth/2\relax” or 
 “width=\the\dimexpr0.5\textwidth\relax”.

thank you, that works.

Is it a permanent change of rules or the old shorter way is just
temporary disabled by some ongoing unfinished development of ConTeXt
code?

Sincerely, Michail
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Re: [NTG-context] 3D annotations problems

2012-09-09 Thread Michail Vidiassov
Just a follow up -
the old way width=0.5\textwidth still works for png external figures.

Is it considered non-kosher now and is to be changed everywhere to the
new one “width=\the\dimexpr0.5\textwidth\relax” whenever possible to
avoid potential problems?
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Re: [NTG-context] 3D annotations problems

2012-09-09 Thread Wolfgang Schuster

Am 09.09.2012 um 16:07 schrieb Michail Vidiassov mas...@iaas.msu.ru:

 Just a follow up -
 the old way width=0.5\textwidth still works for png external figures.

When you use images in jpg, png or pdf format context still uses a lot of tex
code where you can use this form of assignment because the values are
assigned to another dimen register in tex where this is valid.

\starttext

\newdimen\mydimenregister

\mydimenregister=10pt

mydimenregister = \the\mydimenregister

\mydimenregister=\textwidth

mydimenregister = \the\mydimenregister

\mydimenregister=.33\textwidth

mydimenregister = \the\mydimenregister

\stoptext

When you insert a 3D graphic in your document the values of the width/height
keys are read by lua which can’t handle with this assignment, what can be used
in this case are only absolute values like 10pt and with \the\dimepr… you can
do this even with relative value, e.g. .5\textwidth.

 Is it considered non-kosher now and is to be changed everywhere to the
 new one “width=\the\dimexpr0.5\textwidth\relax” whenever possible to
 avoid potential problems?

Maybe Hans can add some code which checks the argument to avoid this, e.g.

  if argument == fit or argument == broad then
  return argument
  else
  return \the\dimeprargument\relax
  fi

Wolfgang
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[NTG-context] No cmyk support in MKIV (TexLive 2012 version)?

2012-09-09 Thread Bill Meahan
Trying to define some spot colors using the wiki examples. I get the 
following error message every time I run MKIV:



colors   cmyk color space is not supported

Here's the relevant section of my environment file:

% Turn on colors.
\setupcolors[rgb=no,cmyk=yes,spot=yes,state=start,overprint=yes]
%\setupcolors[state=start]
% Define the colors we want to use and give a print shop Pantone
% equivalents to work with,
% set up the cmyk fallbacks
\definecolor
   [PantoneTwoNineFour]
   [c=1,m=.68,y=7,k=.28]

\definecolor
   [PantoneThreeZeroZero]
   [c=1,m=.42,y=0,k=0]

% Define tints of spot colors to be used in document for coloring text
\definespotcolor
   [DarkBlue]
   [PantoneTwoNineFour]
   [p=1,e=PANTONE 294 PC]

\definespotcolor
   [LightBlue]
   [PantoneThreeZeroZero]
   [p=1,e=PANTONE 300 PC]


I do get the DarkBlue in my pdf output but no sign of the LightBlue 
anywhere.


--
Bill Meahan
Westland, Michigan USA

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[NTG-context] Search path.

2012-09-09 Thread Andre Caldas
Hello, list!

I am really new to ConTeXt. I am writing a book
http://topologia-geral.ourproject.org/
It is written in LaTeX and I intend to migrate it to ConTeXt.

I want to migrate and I want to be as far from HACKS as I can. So I
want to know the recommended way to do things. One of my first
difficulties comes from the search path used by texexec. It seems to
me that the path searched for components, products and environments
depends on the path were the script was called from. That is, it
depends on the current working directory.

My question (honestly) is:
- Why would I want this behavior?

When I write a project, product, component or environment file, why
would I want the references I made to be dependent on the directory
where the script was called? Shouldn't things be like the
#include relative_path.h
used in the C language, for example? That is, shouldn't those paths be
relative to the script that refers to them?

Am I missing something?


André Caldas.
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[NTG-context] Sequence of MetaPost Pages

2012-09-09 Thread Troy Henderson
When I create animations using MetaPost, I typically do something like

for n=1 upto N:
   beginfig(n);
  some code
   endfig;
endfor;

and a sequence of figures are created.  How can I do this in ConTeXt using
\startMPpage ... \stopMPpage?

Troy Henderson
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Re: [NTG-context] Sequence of MetaPost Pages

2012-09-09 Thread Aditya Mahajan

On Sun, 9 Sep 2012, Troy Henderson wrote:


When I create animations using MetaPost, I typically do something like

for n=1 upto N:
  beginfig(n);
 some code
  endfig;
endfor;

and a sequence of figures are created.  How can I do this in ConTeXt using
\startMPpage ... \stopMPpage?


(untested)

\dorecurse{10}
   {\startMPpage
   label(btex On step \recurselevel etex, origin);
\stopMPpage}

(There is also \dostepwiserecurse if you need more control).

Aditya

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Re: [NTG-context] Sequence of MetaPost Pages

2012-09-09 Thread Troy Henderson
That works great.  Now I have defined a global numeric

N:=8;

in \startMPinclusions ... \stopMPinclusions at the be beginning of my
document.  All of my \startMPpage ... \stopMPpage environments understand
this N, but how do I reference this value as the start value for
\dostepwiserecurse?  That is, I would like to do something like

\dostepwiserecurse{N}{0}{-1}{ ... some code ... }

Troy
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Re: [NTG-context] Sequence of MetaPost Pages

2012-09-09 Thread Aditya Mahajan

That works great.  Now I have defined a global numeric

N:=8;

in \startMPinclusions ... \stopMPinclusions at the be beginning of my
document.  All of my \startMPpage ... \stopMPpage environments understand
this N, but how do I reference this value as the start value for
\dostepwiserecurse?  That is, I would like to do something like

\dostepwiserecurse{N}{0}{-1}{ ... some code ... }


For that, you'll need to work on the TeX end.

\edef\STEPS{8}

\dorecurse\STEPS{}

You can either use \STEPS instead of N everywhere in your code (and be 
careful on how TeX code is parsed, i.e., `a := \STEPS 0` will evaluate to 
`a := 80`), or use `N := \STEPS;` somewhere in the beginning of each 
`\MPpage` (the `N :\ \STEPS` can be hidden behind a macro like 
`\initializeAnimation`).


Aditya

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Re: [NTG-context] Sequence of MetaPost Pages

2012-09-09 Thread Troy Henderson

 label(decimal(n),origin);


Sorry.  I found the answer by wrapping the decimal() inside textext().
That is,

label(textext(decimal(n)),origin);

does what I want.

Troy
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