Nabble - pgf-users

Re: Matrix Problem in Beamer

2009-11-21T14:00:27Z

Le 21 nov. 2009 à 21:21, David Arnold a écrit :

> All,
>
> The following throws this error:
>
> ! Package pgfbasematrix Error: Single ampersand used with wrong catcode.
>
> See the pgfbasematrix package documentation for explanation.
> Type H <return> for immediate help.
> ...
>
> l.68 \end{frame}
>
> ?
>
> Can anyone help?

Hi

\begin{frame}[fragile]

Best Regards

Alain Matthes
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Matrix Problem in Beamer

2009-11-21T12:21:40Z

All,

The following throws this error:

! Package pgfbasematrix Error: Single ampersand used with wrong catcode.

See the pgfbasematrix package documentation for explanation.

Type H <return> for immediate help.

...

l.68 \end{frame}

Can anyone help?

David Arnold

College of the Redwoods

\documentclass{beamer}

\usepackage{tikz}

\begin{document}

\begin{frame}

\begin{center}

\begin{tikzpicture}[

nonterminal/.style={

% The shape:

rectangle,

% The size:

minimum height=1cm,

minimum width=1cm,

% The border:

very thick,

draw=red!50!black!50, % 50% red and 50% black,

% and that mixed with 50% white

% The filling:

top color=white, % a shading that is white at the top...

bottom color=red!50!black!20, % and something else at the bottom

% Font

font=\itshape

}]

\matrix[row sep = 2mm, column sep = 2mm]{

\node [nonterminal] {\Large 1}; &

\node [nonterminal] {\Large 2}; &

\node [nonterminal] {\Large 3}; \\

\node [nonterminal] {\Large 4}; &

\node [nonterminal] {\Large 5}; &

\node [nonterminal] {\Large 6}; \\

\node [nonterminal] {\Large 7}; &

\node [nonterminal] {\Large 8}; &

\node [nonterminal] {\Large 9}; \\

};

\end{tikzpicture}

\hspace{0.5in}

\begin{tikzpicture}[

nonterminal/.style={

% The shape:

rectangle,

% The size:

minimum height=1cm,

minimum width=1cm,

% The border:

very thick,

draw=red!50!black!50, % 50% red and 50% black,

% and that mixed with 50% white

% The filling:

top color=white, % a shading that is white at the top...

bottom color=red!50!black!20, % and something else at the bottom

% Font

font=\itshape

}]

\matrix[row sep = 2mm, column sep = 2mm]{

\node [nonterminal] {\Large 1}; &

\node [nonterminal] {\Large 2}; &

\node [nonterminal] {\Large 3}; \\

\node [nonterminal] {\Large 4}; &

\node [nonterminal] {\Large 5}; &

\node [nonterminal] {\Large 6}; \\

\node [nonterminal] {\Large 7}; &

\node [nonterminal] {\Large 8}; &

\node [nonterminal] {\Large 9}; \\

};

\end{tikzpicture}

\end{center}

\end{frame}

\end{document}

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Re: how to ignore "undefined" points in gnuplot table file?

2009-11-20T12:04:47Z

Christian, thanks for your advice!

I have something which works for my simple test, but can't vouch for
its tex correctness.. See attached for patch file.

Cheers,
Andy

On Wed, Nov 18, 2009 at 3:38 PM, Christian Feuersaenger
<feuersaenger@...> wrote:

> Hello Andy,
>
> The 'plot function' implementation boils down to a PGF call
> '\pgfplotgnuplot' with implementation in
>
> generic/pgf/modules/pgfmoduleplot.code.tex
>
> in the pgf installation path. This, in turn, invokes \pgfplotxyfile after
> gnuplot has been invoked. The \pgfplotxyfile calls
> \pgf@parsexyline
> eventually which has the definition
>
> \def\pgf@parsexyline#1 #2 #3\pgf@stop{%
> \pgfplotstreampoint{\pgfpointxy{#1}{#2}}%
> }
>
> The '#3' argument contains everything after the second coordinate until the
> end. Note that it will probably be 'u<space>' because the trailing newline
> is considered to be a space character.
>
> A possible add-on could be to leave the @parsexyline as it is and to
> exchange its definition temporary inside of the implementation of
> \pgfplotgnuplot. If you want to try this out, remember to keep this change
> local, i.e. restore it afterwards somehow.
>
> Good luck!
>
> Best regards
>
> Christian
>

ignore-gnuplot-undefined-points.patch (980 bytes) Download Attachment

Re: pgf and elastic spaces

2009-11-18T16:39:00Z

Hi,

If you just want to store the skip specification in a macro, then the
following should do it:

\begingroup%
\pgfmathsetskip\pgfmath@skip{#2}%
\edef#1{\the\pgfmath@skip}%
\pgfmath@smuggleone{#1}%
\endgroup

Although in this case as \pgfmath@skip is not used anywhere else
(certainly not in PGF or TikZ) then

\pgfmathsetskip\pgfmath@skip{#2}%
\edef#1{\the\pgfmath@skip}%

will do.

Regards

Mark
2009/11/19 Nicolas Girard <girard.nicolas@...>:

> 2009/11/19 Nicolas Girard <girard.nicolas@...>:
>> I'm already trying to add an additional \pgfmathsetskipmacro in a
>> similar way as \pgfmathsetlengthmacro ;
>
> err... well, it should look like what follows, except that it should
> also work :-/
>
> \def\pgfmathsetskipmacro#1#2{%
> \begingroup%
> \pgfmathsetskip\pgfmath@skip{#2}%
> \newskip#1%
> \let#1\pgfmath@skip%
> \pgfmath@smuggleone{#1}%
> \endgroup%
> }
>
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>

Re: pgf and elastic spaces

2009-11-18T16:06:42Z

2009/11/19 Nicolas Girard <girard.nicolas@...>:
> I'm already trying to add an additional \pgfmathsetskipmacro in a
> similar way as \pgfmathsetlengthmacro ;

err... well, it should look like what follows, except that it should
also work :-/

\def\pgfmathsetskipmacro#1#2{%
\begingroup%
\pgfmathsetskip\pgfmath@skip{#2}%
\newskip#1%
\let#1\pgfmath@skip%
\pgfmath@smuggleone{#1}%
\endgroup%
}

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Re: pgf and elastic spaces

2009-11-18T15:31:18Z

2009/11/18 Mark Wibrow <m.wibrow@...>:
>
> Parsing a skip specification so the mathematical engine can be
> employed is not trivial, and the following shows a sketch of what is
> necessary (I can't guarantee it is fully robust).
>
> [...]
>
> Hope this helps
>

Hi Mark,

oh yes, this helps tremendously, thanks very much !

I'm already trying to add an additional \pgfmathsetskipmacro in a
similar way as \pgfmathsetlengthmacro ; also I've noticed that
\pgfmathsetskip\myskip{10pt plus 5pt minus 1.0pt}
\pgfmathsetskip\myskip{2*\myskip}
doesn't work as expected, but I guess that wouldn't be a quick fix,
and anyway your code is already very useful, at least to me !

Cheers,
Nicolas

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Re: pgf and elastic spaces

2009-11-18T14:31:45Z

Hi,

\pgfmathsetlength is only designed to be used with dimen registers.
You can use skip registers (e.g., \pgfmathsetlength\myskip{5pt+2ex})
but you cannot specify stretch or shrink. If you use skip registers
inside the parser (e.g., \pgfmathparse{2*\myskip}) the stretch and
shrink are ignored.

Parsing a skip specification so the mathematical engine can be
employed is not trivial, and the following shows a sketch of what is
necessary (I can't guarantee it is fully robust).

\documentclass{article}
\usepackage{pgf}
\begin{document}
\makeatletter

\newskip\pgfmath@skip

\def\pgfmathsetskip#1#2{%
\expandafter\pgfmath@onquick#2\pgfmath@%
{%
% Ok, quick version:
\begingroup%
\pgfmath@selectfont%
\pgfmath@skip=#2\unskip%
\expandafter%
\endgroup%
\expandafter#1\expandafter=\the\pgfmath@skip%
}%
{%
\let\pgfmath@getskip@a=\pgfmath@empty%
\let\pgfmath@getskip@b=\pgfmath@empty%
\let\pgfmath@getskip@c=\pgfmath@empty%
\pgfmath@getskip#2 @%
#1=\pgfmath@getskip@a\pgfmath@getskip@b\pgfmath@getskip@c\relax%
}%
\ignorespaces%
}

\def\pgfmath@getskip#1 {%
\pgfmathparse{#1}%
\edef\pgfmath@getskip@a{\pgfmathresult pt}%
\pgfmath@@getskip}

\def\pgfmath@@getskip{%
\pgfutil@ifnextchar p{\pgfmath@getskip@plus}{%
\pgfutil@ifnextchar m{\pgfmath@getskip@minus}{%
\pgfmath@@@getskip}}}

\def\pgfmath@@@getskip#1@{}%

\def\pgfmath@getskip@plus plus#1#2 {%
\pgfutil@in@{fil}{#1#2}%
\ifpgfutil@in@%
\pgfmath@getskip@fil#1#2;%
\edef\pgfmath@getskip@b{plus \pgfmathresult fil}%
\else%
\pgfmathparse{#1#2}%
\edef\pgfmath@getskip@b{plus \pgfmathresult pt}%
\fi%
\pgfmath@@getskip}

\def\pgfmath@getskip@fil#1fil;{\pgfmathparse{#1}}

\def\pgfmath@getskip@minus minus#1#2 {%
\pgfutil@in@{fil}{#1#2}%
\ifpgfutil@in@%
\pgfmath@getskip@fil#1#2;%
\edef\pgfmath@getskip@c{minus \pgfmathresult fil}%
\else%
\pgfmathparse{#1#2}%
\edef\pgfmath@getskip@c{minus \pgfmathresult pt}%
\fi%
\pgfmath@@getskip}

\makeatother

\newskip\myskip
\newdimen\mydimen

% Quick parse (i.e., +prefix meansno mathematical engine)
\pgfmathsetskip\myskip{+10pt plus 5pt minus 1.0fil}
\typeout{\the\myskip}

% Now use the mathematical engine
\pgfmathsetskip\myskip{5*7pt plus 3.5*2pt minus 3.1*1pt}
\typeout{\the\myskip}

% See what happens when a skip is used in the parser.
\pgfmathsetlength\mydimen{2*\myskip}
\typeout{\the\mydimen}

% Using a fil specification
\pgfmathsetskip\myskip{2.1*3pt minus 3.2*3fil}
\typeout{\the\myskip}

\end{document}

Hope this helps

Mark

2009/11/18 Nicolas Girard <girard.nicolas@...>:

> 2009/11/18 GGBBRR <gerben.rotman@...>:
>>
>> I am not sure whether this is what you mean but this seems to work:
>>
>> \tikzset{my length=2cm + 1ex - 0.5ex}
>>
>>
>
> Actually I meant *elastic* length, such as
> 2cm \@plus 1ex \@minus 0.5ex
> that is, the length can shrink as low as (2cm-0.5ex) and grow as much
> as (2cm+1ex).
>
> Nicolas
>
> ------------------------------------------------------------------------------
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> trial. Simplify your report design, integration and deployment - and focus on
> what you do best, core application coding. Discover what's new with
> Crystal Reports now. http://p.sf.net/sfu/bobj-july
> _______________________________________________
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> https://lists.sourceforge.net/lists/listinfo/pgf-users
>

Re: how to ignore "undefined" points in gnuplot table file?

2009-11-18T12:38:14Z

Hello Andy,

The 'plot function' implementation boils down to a PGF call
'\pgfplotgnuplot' with implementation in

generic/pgf/modules/pgfmoduleplot.code.tex

in the pgf installation path. This, in turn, invokes \pgfplotxyfile
after gnuplot has been invoked. The \pgfplotxyfile calls
\pgf@parsexyline
eventually which has the definition

\def\pgf@parsexyline#1 #2 #3\pgf@stop{%
\pgfplotstreampoint{\pgfpointxy{#1}{#2}}%
}

The '#3' argument contains everything after the second coordinate until
the end. Note that it will probably be 'u<space>' because the trailing
newline is considered to be a space character.

A possible add-on could be to leave the @parsexyline as it is and to
exchange its definition temporary inside of the implementation of
\pgfplotgnuplot. If you want to try this out, remember to keep this
change local, i.e. restore it afterwards somehow.

Good luck!

Best regards

Christian

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Re: bug in const plot handler?

2009-11-18T12:29:27Z

Hello Andy,

you found indeed a bug in the const plot handler: it transformed the
first point twice.

I have just committed a fix for this problem which solves the problem
for all four const plot handlers.

Thank you for the hint!

Best regards

Christian

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Re: pgf and elastic spaces

2009-11-18T10:49:47Z

2009/11/18 GGBBRR <gerben.rotman@...>:
>
> I am not sure whether this is what you mean but this seems to work:
>
> \tikzset{my length=2cm + 1ex - 0.5ex}
>
>

Actually I meant *elastic* length, such as
2cm \@plus 1ex \@minus 0.5ex
that is, the length can shrink as low as (2cm-0.5ex) and grow as much
as (2cm+1ex).

Nicolas

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Re: pgf and elastic spaces

2009-11-18T10:32:46Z

I am not sure whether this is what you mean but this seems to work:

\tikzset{my length=2cm + 1ex - 0.5ex}

Nicolas Girard-4 wrote:

Hi all,
I need pgf to let me specify elastic spaces. In the following code,
\tikzset{my length=2cm}
works, but
\tikzset{my length=2cm plus 1ex minus 0.5ex}
doesn't.
Any ideas ?
Thanks in advance,

Nicolas

%----%<-----
\documentclass{article}
\RequirePackage{tikz}
\tikzset{
my length/.code=\pgfmathsetlengthmacro\mylength{#1}
}
\tikzset{my length=2cm}% plus 1ex minus 0.5ex}
\begin{document}
A

\vspace{\mylength}
B

C
\end{document}

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how to ignore "undefined" points in gnuplot table file?

2009-11-18T10:01:44Z

I'm using pgf's plot function support to generate points based on a
conditional statement inside gnuplot. One of the result values of my
conditional statement is "1/0", an undefined value. Gnuplot supports
this as a simple way to filter out certain x values from your plot.
Using gnuplot's "table" output mode, these undefined points are
included as lines "0.00000 0.00000 u" (note the "u" or "undefined"
flag at the end of the line). Unfortunately, when pgf reads the output
table file, it doesn't pay attention to the "u" flag, so any undefined
points are plotted at (0,0). Here's an example:

{{{
\documentclass{article}
\usepackage{tikz}
\begin{document}
\begin{tikzpicture}[ycomb,domain=-5:5]
%% the "1/0" in the function below will cause gnuplot to generate an
%% "undefined" y value for x, which will be included in the output table file
%% as a line "0.00000 0.00000 u". Because TiKZ doesn't pay attention to the
%% "u" flag, spurious plot marks are drawn at (0,0).
\draw plot[id=cos,mark=*] function{(x>0 && x<0.5 ? 1/0 : cos(x))};
\end{tikzpicture}
\end{document}
}}}

So, perhaps I should figure out how to extend pgf's table file reading
mechanism to optionally ignore these "undefined" points in the input
file. Thoughts?

Andy

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pgf and elastic spaces

2009-11-18T07:02:55Z

Hi all,
I need pgf to let me specify elastic spaces. In the following code,
\tikzset{my length=2cm}
works, but
\tikzset{my length=2cm plus 1ex minus 0.5ex}
doesn't.
Any ideas ?
Thanks in advance,

Nicolas

%----%<-----
\documentclass{article}
\RequirePackage{tikz}
\tikzset{
my length/.code=\pgfmathsetlengthmacro\mylength{#1}
}
\tikzset{my length=2cm}% plus 1ex minus 0.5ex}
\begin{document}
A

\vspace{\mylength}
B

C
\end{document}

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bug in const plot handler?

2009-11-17T20:29:46Z

With coordinate (y) scaling in effect, the right endpoint of the first
segment of a "const" plot is lower than it should be. Oddly enough,
this miscalculation is limited to the first coordinate of the plot
alone; No other segments seem to be affected.

I'm using the pgf/tikz build from the texample.net site dated
2009-11-16. See the following example to reproduce the issue:

{{{
\documentclass{article}
\usepackage{tikz}
\begin{document}

% no scaling, should be fine
\begin{tikzpicture}
\draw[blue] plot[const plot] coordinates{(0,1) (1,2) (2,1.2) (3,0)};
\end{tikzpicture}

% only scaling x, the problem is not evident
\begin{tikzpicture}[xscale=0.5]
\draw[red] plot[const plot] coordinates{(0,1) (1,2) (2,1.2) (3,0)};
\end{tikzpicture}

% only scaling y, we see a problem with the right endpoint of the
first "const" segment
\begin{tikzpicture}[yscale=0.5]
\draw[red] plot[const plot] coordinates{(0,1) (1,2) (2,1.2) (3,0)};
\end{tikzpicture}

% scaling, we again see the issue
\begin{tikzpicture}[scale=0.5]
\draw[red] plot[const plot] coordinates{(0,1) (1,2) (2,1.2) (3,0)};
\end{tikzpicture}
\end{document}
}}}

Any thoughts on how I might fix this?

Best,
Andy

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Re: picture taking whole paper size

2009-11-17T09:22:13Z

In such situations i always use the externalization library. Then when you print it you just have to set scaling to an appropiate scale.

Or you can simply use the current page node! This has to be used in conjunction with remember picture and overlay. So

\documentclass[a4paper,oneside,onecolumn]{article}
% here article does suffice becomes the important part is drawn as an overlay! :D
\usepackage{tikz}
\begin{document}%
\pagestyle{empty}
\begin{tikzpicture}[remember picture,overlay]
\pgftransformshift{\pgfpointanchor{current page}{south west}}
\path[draw,color=black,thin] (0,0) -- (21.00000,29.70000);%
\path[draw,color=black,thin] (10.50000,14.85000) -- (0.00000,22.27424) -- (6.12188,29.70000);%
\path[draw,color=black,thin] (17.65890,24.97473) -- (10.97602,29.70000);%
\path[draw,color=black!30,thin] (17.65890,24.97473) -- (21.00000,22.61234);%
\path[draw,color=black,thin] (3.22563,4.56197) -- (0.00000,6.84272);%
\path[draw,color=black!30,thin] (3.22563,4.56197) -- (9.67756,0.00000);%
\path[draw,color=black!30,thin] (9.87756,0.00000) -- (21.00000,7.22576);%
\end{tikzpicture}%
\end{document}

Hope this helps!

Nick

2009/11/17 Susan Dittmar <Susan.Dittmar@...>

Hello,

I would like to create a one-page document only containing one picture,
which fills the whole of the page. Unfortunately I did not manage to tell
pdflatex not to start with an empty page yet. Any ideas?
(In case someone wonders: the lines are the fold marks for the origami
double cd case by Jorma Oksanen.)

Thanks in advance,

Susan

\documentclass[a4paper,oneside,onecolumn,10pt,pagesize,parskip-]{scrartcl}
% minimal does not suffice because I need size commands and such for the
% description of the CD contents; both article and minimal yields similar
% results
\usepackage[a4paper,left=0mm,right=0mm,top=0mm,bottom=0mm]{geometry}
\usepackage[german]{babel}
\usepackage{tikz}
\usepackage{rotating}
\usepgflibrary{plotmarks}
\begin{document}%
\begin{tikzpicture}%
\path[draw,color=black,thin] (0.00000,0.00000) -- (21.00000,29.70000);%
\path[draw,color=black,thin] (10.50000,14.85000) -- (0.00000,22.27424) -- (6.12188,29.70000);%
\path[draw,color=black,thin] (17.65890,24.97473) -- (10.97602,29.70000);%
\path[draw,color=black!30,thin] (17.65890,24.97473) -- (21.00000,22.61234);%
\path[draw,color=black,thin] (3.22563,4.56197) -- (0.00000,6.84272);%
\path[draw,color=black!30,thin] (3.22563,4.56197) -- (9.67756,0.00000);%
\path[draw,color=black!30,thin] (9.87756,0.00000) -- (21.00000,7.22576);%
\end{tikzpicture}%
\end{document}

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picture taking whole paper size

2009-11-17T08:23:15Z

Hello,

I would like to create a one-page document only containing one picture,
which fills the whole of the page. Unfortunately I did not manage to tell
pdflatex not to start with an empty page yet. Any ideas?
(In case someone wonders: the lines are the fold marks for the origami
double cd case by Jorma Oksanen.)

Thanks in advance,

Susan

\documentclass[a4paper,oneside,onecolumn,10pt,pagesize,parskip-]{scrartcl}
% minimal does not suffice because I need size commands and such for the
% description of the CD contents; both article and minimal yields similar
% results
\usepackage[a4paper,left=0mm,right=0mm,top=0mm,bottom=0mm]{geometry}
\usepackage[german]{babel}
\usepackage{tikz}
\usepackage{rotating}
\usepgflibrary{plotmarks}
\begin{document}%
\begin{tikzpicture}%
\path[draw,color=black,thin] (0.00000,0.00000) -- (21.00000,29.70000);%
\path[draw,color=black,thin] (10.50000,14.85000) -- (0.00000,22.27424) -- (6.12188,29.70000);%
\path[draw,color=black,thin] (17.65890,24.97473) -- (10.97602,29.70000);%
\path[draw,color=black!30,thin] (17.65890,24.97473) -- (21.00000,22.61234);%
\path[draw,color=black,thin] (3.22563,4.56197) -- (0.00000,6.84272);%
\path[draw,color=black!30,thin] (3.22563,4.56197) -- (9.67756,0.00000);%
\path[draw,color=black!30,thin] (9.87756,0.00000) -- (21.00000,7.22576);%
\end{tikzpicture}%
\end{document}

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Re: pgfplots manual can't be compiled with latest gnuplot 4.2.6

2009-11-15T11:16:53Z

Hello Leo,

thank you for pointing this out! I have just commited a patch to PGF CVS
which uses 'set table "<file>"' instead of the deprecated 'set terminal
table'.

This change will apply to pgfplots as well (if pgf CVS is installed).

It seems 'set terminal table' is deprecated since 2005, so I hope this
does not pose conflicts with users of older gnuplot users.

Best regards

Christian

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Re: Fadings and externalization lib

2009-11-15T10:57:49Z

Hello Florian,

thank you for pointing out problems with the external lib and fadings!
You are right, this doesn't work as expected. The external lib tries to
externalize the picture which is intended to store the transparency
things - so this information is no longer available.

I have written special handling in the external library (CVS version of
today evening) to suppress this bug.

However, the new special handling does ONLY work in one of the two
following cases:

1. \tikzexternalize is called AFTER \usetikzlibrary{fadings}
2. all fadings are created BEFORE \tikzexternalize.

The second part does also work without the new special handling.

What it does is disable the external library for the temporary fading
picture. The two cases above are now also in the docs for the external
library.

Thank you for reporting this issue!

Best regards

Christian

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Re: Naming lines with tikz 2D

2009-11-15T10:36:48Z

Le 15 nov. 2009 à 18:10, Hugues Vermeiren a écrit :

> Hello, Tikz 2D users.
>
> First of all, let me thank A.Matthes for his wonderfull package, it really
> helps saving time.
>
> Is there an easy way to label or name Lines with Tikz-2d?
> The compiler tells me the Line family commands (\tkzLine, \tkzParaLL, etc)
> do not know the 'name' option.
>
> What I do is to place, and name, a point on the line, which implies some
> more manipulations.
> But you can also use a classical tikz command using a node.
> If Tikz-2D could do the job, it'd be fine.

Hi

Yes it's not very easy ... :( sorry

It was the first public version of tkz-2d and I need to update a lot of things before
uploading the package on the ctan server.

Actually the good way is

\tkzLine[prefix = dm](S/Q)

you get a line with the two points S and Q

The extremities of the line are "dml" and "dmr" (by default the prefix is "d"

You can use a node with the tikz syntax

\node[above left] at (dbr) {$\Delta$};

If you preferr to keep the tkz-2d syntax,
you can get the coordinates of "dml" with

\tkzGetPointxy(dbr){pt}

with this macro, now you have \ptx and \pty the coordinates of the node
Then you can use

\tkzText(\ptx,\pty){$\Delta$} or tkzPoint ...

Best regards

Alain Matthes

PS If you have some difficulties, you can send me your file
and sorry for my bad english language.

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Naming lines with tikz 2D

2009-11-15T09:10:43Z

Hello, Tikz 2D users.

First of all, let me thank A.Matthes for his wonderfull package, it really
helps saving time.

Is there an easy way to label or name Lines with Tikz-2d?
The compiler tells me the Line family commands (\tkzLine, \tkzParaLL, etc)
do not know the 'name' option.

What I do is to place, and name, a point on the line, which implies some
more manipulations.
But you can also use a classical tikz command using a node.
If Tikz-2D could do the job, it'd be fine.

Thanks to all,

Hugues Vermeiren

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pgfplots: old style figures for tick labels

2009-11-15T04:12:51Z

Hi there,

When use old style figures, how to make the labels align like they do in
the text? Thank you.

--8<---------------cut here---------------start------------->8---
\documentclass[12pt]{article}
\usepackage[T1]{fontenc}
\renewcommand\rmdefault{pmnj}
% Use old style figures in math mode
\DeclareSymbolFont{numbers}{T1}{pmnj}{m}{n}
\DeclareMathSymbol{0}\mathalpha{numbers}{"30}
\DeclareMathSymbol{1}\mathalpha{numbers}{"31}
\DeclareMathSymbol{2}\mathalpha{numbers}{"32}
\DeclareMathSymbol{3}\mathalpha{numbers}{"33}
\DeclareMathSymbol{4}\mathalpha{numbers}{"34}
\DeclareMathSymbol{5}\mathalpha{numbers}{"35}
\DeclareMathSymbol{6}\mathalpha{numbers}{"36}
\DeclareMathSymbol{7}\mathalpha{numbers}{"37}
\DeclareMathSymbol{8}\mathalpha{numbers}{"38}
\DeclareMathSymbol{9}\mathalpha{numbers}{"39}

\usepackage{pgfplots}

\begin{document}
\begin{tikzpicture}
\begin{axis}
[
xmin=-28,xmax=-20,ymin=-100,ymax=0,
width=12cm,
height=8cm
]

\end{axis}
\end{tikzpicture}

\end{document}
--8<---------------cut here---------------end--------------->8---

In this screenshot, you can see the $-$ not on the same line

Leo

--
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Re: Hyperbola

2009-11-12T13:24:20Z

Hello,

Anything's possible. But, if I were to write a macro like that, I
would first think about the interface: How would you call it? With
the ellipse it seems "best" to describe it by its center and its major
and minor radii, and the interface is

\draw (0,0) ellipse (1cm and 2cm);

How would you like to describe a hyperbola? It does have a center and
"radii" of sorts.

\draw (0,0) hyperbola (0.87cm and 0.49cm)

Alternatively, you could create something like

\draw (2,-1) hyperbola foci (-1,0) and (1,0);

My real question is how you describe the extent of the curve you want
drawn. Ellipses are closed curves whereas hyperbolae are not. The
GeoGebra code draws a lot, but I'm worried about TeX dimensions
getting too large without some smart endpoints.

On the implementation side, I can guess that the choice of
parametrization can effect the speed of generating the points. You
could use rational functions, as GeoGebra does, or trigonometric ones,
or algebraic ones. It might be enough to use Bézier curves to
approximate, as PGF does for the other conics.

I have no answers, but I thought I'd add my questions to the discussion.

--Matthew

On Nov 12, 2009, at 3:43 PM, Hugues Vermeiren wrote:

> Hello everybody,
>
> For some time now, Geogebra produces Tikz-code.
>
> For example, the code corresponding to the hyperbola of focii (1,0)
> and
> (-1,0) passing through P(2,-1) is:
>
> \documentclass[10pt]{article}
> \usepackage{pgf,tikz}
> \usetikzlibrary{arrows}
> \pagestyle{empty}
> \begin{document}
> \begin{tikzpicture}[line cap=round,line join=round,>=triangle
> 45,x=1.0cm,y=1.0cm]
> \clip(-4.3,-3.9) rectangle (8.42,6.3);
> \draw [samples=50,domain=-0.99:0.99,rotate
> around={0:(0,0)},xshift=0cm,yshift=0cm] plot
> ({0.87*(1+\x^2)/(1-\x^2)},{0.49*2*\x/(1-\x^2)});
> \draw [samples=50,domain=-0.99:0.99,rotate
> around={0:(0,0)},xshift=0cm,yshift=0cm] plot
> ({0.87*(-1-\x^2)/(1-\x^2)},{0.49*(-2)*\x/(1-\x^2)});
> \end{tikzpicture}
> \end{document}
>
> Ideally, of course, we'd like to produce this code 'by hand' for any
> conic.
> Has anyone written some powerful macro that would do the job?
>
> Hugues Vermeiren.
>
> ----- Original Message -----
> From: "Jouke Witteveen" <j.witteveen@...>
> To: <pgf-users@...>
> Sent: Thursday, November 12, 2009 5:47 PM
> Subject: [Pgf-users] Hyperbola
>
>
>> Hello,
>>
>> What is the best way to draw a hyperbola in TikZ? The other conic
>> sections, ellipse and parabola, have their own path generating
>> commands, but hyperbola has not.
>>
>> Thanks,
>> - Jouke
>>
>> ------------------------------------------------------------------------------
>> Let Crystal Reports handle the reporting - Free Crystal Reports 2008
>> 30-Day
>> trial. Simplify your report design, integration and deployment -
>> and focus
>> on
>> what you do best, core application coding. Discover what's new with
>> Crystal Reports now. http://p.sf.net/sfu/bobj-july
>> _______________________________________________
>> pgf-users mailing list
>> pgf-users@...
>> https://lists.sourceforge.net/lists/listinfo/pgf-users
>
>
> ------------------------------------------------------------------------------
> Let Crystal Reports handle the reporting - Free Crystal Reports 2008
> 30-Day
> trial. Simplify your report design, integration and deployment - and
> focus on
> what you do best, core application coding. Discover what's new with
> Crystal Reports now. http://p.sf.net/sfu/bobj-july
> _______________________________________________
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> pgf-users@...
> https://lists.sourceforge.net/lists/listinfo/pgf-users

--
Matthew Leingang
Clinical Associate Professor of Mathematics
leingang@...

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Re: Hyperbola

2009-11-12T13:04:02Z

"Jouke Witteveen" <j.witteveen@...> wrote:
> What is the best way to draw a hyperbola in TikZ? The other conic
> sections, ellipse and parabola, have their own path generating
> commands, but hyperbola has not.

One way is to use the pgfplots package, as in:

\documentclass{article}
\usepackage{pgfplots}
\begin{document}
\begin{tikzpicture}
\begin{axis}[axis x line=none, axis y line=none, no markers]
\addplot {sqrt(1+x^2)};
\addplot {-sqrt(1+x^2)};
\end{axis}
\end{tikzpicture}
\end{document}

You will find pgfplots in:

http://www.ctan.org/tex-archive/help/Catalogue/entries/pgfplots.html

--
Rouben Rostamian

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Re: Hyperbola

2009-11-12T12:43:03Z

Hello everybody,

For some time now, Geogebra produces Tikz-code.

For example, the code corresponding to the hyperbola of focii (1,0) and
(-1,0) passing through P(2,-1) is:

\documentclass[10pt]{article}
\usepackage{pgf,tikz}
\usetikzlibrary{arrows}
\pagestyle{empty}
\begin{document}
\begin{tikzpicture}[line cap=round,line join=round,>=triangle
45,x=1.0cm,y=1.0cm]
\clip(-4.3,-3.9) rectangle (8.42,6.3);
\draw [samples=50,domain=-0.99:0.99,rotate
around={0:(0,0)},xshift=0cm,yshift=0cm] plot
({0.87*(1+\x^2)/(1-\x^2)},{0.49*2*\x/(1-\x^2)});
\draw [samples=50,domain=-0.99:0.99,rotate
around={0:(0,0)},xshift=0cm,yshift=0cm] plot
({0.87*(-1-\x^2)/(1-\x^2)},{0.49*(-2)*\x/(1-\x^2)});
\end{tikzpicture}
\end{document}

Ideally, of course, we'd like to produce this code 'by hand' for any conic.
Has anyone written some powerful macro that would do the job?

Hugues Vermeiren.

----- Original Message -----
From: "Jouke Witteveen" <j.witteveen@...>
To: <pgf-users@...>
Sent: Thursday, November 12, 2009 5:47 PM
Subject: [Pgf-users] Hyperbola

> Hello,
>
> What is the best way to draw a hyperbola in TikZ? The other conic
> sections, ellipse and parabola, have their own path generating
> commands, but hyperbola has not.
>
> Thanks,
> - Jouke
>
> ------------------------------------------------------------------------------
> Let Crystal Reports handle the reporting - Free Crystal Reports 2008
> 30-Day
> trial. Simplify your report design, integration and deployment - and focus
> on
> what you do best, core application coding. Discover what's new with
> Crystal Reports now. http://p.sf.net/sfu/bobj-july
> _______________________________________________
> pgf-users mailing list
> pgf-users@...
> https://lists.sourceforge.net/lists/listinfo/pgf-users

Hyperbola

2009-11-12T08:47:41Z

Hello,

What is the best way to draw a hyperbola in TikZ? The other conic
sections, ellipse and parabola, have their own path generating
commands, but hyperbola has not.

Thanks,
- Jouke

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Fadings and externalization lib

2009-11-11T10:16:12Z

Hi,
I'm trying to use the externalization library, but there seems to be a
problem when using transparaency or at least with the fadings library. I
suspect it's a problem with pdflatex.

-- SNIP --
\documentclass{minimal}

\usepackage{tikz}

\usetikzlibrary{external}
\tikzexternalize{minimal}

\usetikzlibrary{fadings}
\tikzfading[name=foo,inner color=transparent!0,outer color=transparent!100]

\begin{document}
\begin{tikzpicture}
\fill[red,path fading=foo] circle(5);
\end{tikzpicture}
\end{document}
-- SNAP --

This minimal example works fine without the externalization. Is there a
workaround for that?

Thanks,
Florian

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Re: odd scaling behavoir

2009-11-11T10:02:56Z

Thanks Marco - it worked.

Sebastián, I was skeptical that your solution could work because the scaling problem I was seeing affected one node in the matrix, so changing the scaling of the matrix would affect all the nodes equally. When I tried your solution, this was essentially behavior and the problem remained. Thanks for your input though.

Best,

James

On Wed, Nov 11, 2009 at 12:52 AM, Marco Luca Sbodio <marco.sbodio@...> wrote:

Hello James,

the way that I usually solve this kind of problems is by embedding the
whole tikzpicture into a node to which I apply scaling:

here is your code modified with this approach:

[[

\documentclass{article}

\usepackage{tikz}
\usetikzlibrary{calc,arrows,positioning}

\begin{document}

% define styles
\tikzstyle{sumJunction} = [draw, circle,inner sep=2pt,minimum size=3pt]
\tikzstyle{controller} = [draw, fill=blue!20, text width=5em,text centered,
minimum height=4em]
\tikzstyle{plant} = [draw, fill=red!20, text width=5em,text centered]
\tikzstyle{separatorSmall} = [minimum size=6mm]
\tikzstyle{scalarSignal} = [draw,-latex']
\tikzstyle{vectorSignal} = [scalarSignal,line width=1.5pt]

% some constants
\def\sumJuncOffset{12.0}
\def\sumJuncSignOffset{2.75}

\begin{tikzpicture}

\node [scale=0.37] {

\begin{tikzpicture}

% blocks
\matrix [row sep=1mm,column sep=2mm] {
% reference node 3
\path node (ref3) {};

% sum3
\path ($(ref3)!\sumJuncOffset!(ref3.north)$) node (sum3p) [sumJunction] {+};
\path ($(ref3)!\sumJuncOffset!(ref3.south)$) node (sum3f) [sumJunction] {+}; &

% separator
\path (ref3.east) node [separatorSmall] (sep3) {}; &

% C3
\path (sum3p.east) node (blockC1) [controller] {$C_1$};
\path (sum3f.east) node (blockC2) [controller] {$C_2$}; &
% separator
\path (ref3.east) node [separatorSmall] (sep1c) {}; &

% Plant
\path (sep1c.east)
let \p1 = ($ (blockC1.north) - (blockC2.south) $)
in
node [plant,minimum height=\y1] (blockP) {$P$};
\\};

% sum3 -> C
\path [vectorSignal] (sum3p) -> (blockC1);
\path [vectorSignal] (sum3f) -> (blockC2);

% C -> P
\path [vectorSignal] (blockC1) -- (blockP.west |- blockC1);
\path [vectorSignal] (blockC2) -- (blockP.west |- blockC2);

\end{tikzpicture}

};

\end{tikzpicture}

\end{document}
]]

I hope this helps.

Best Regards,
marco

On Wed, Nov 11, 2009 at 2:07 AM, James Samir Ismail <jsi@...> wrote:
> Hello,
> I'm seeing some odd scaling behavior. My code is depicting a block diagram.
> One of the blocks, P, has a height that is dependent on the placement of
> the two blocks to its left, C_1 and C_2.
> When scaling is set to 1.0 (as in the code below), everything works as
> expected. However, once I set the scaling \tikzset{every
> node/.style={scale=1.0}}  to something other than 1.0 (say, 0.75), P becomes
> incorrectly scaled.
> It's seems like the scaling is being applied twice. Maybe there's a better
> way to scale an entire picture (although this has worked beautifully int he
> past for me)? Any thoughts?
>
> Thanks,
> James
>
> Here's the code:
> \documentclass{article}
> \usepackage{tikz}
> \usetikzlibrary{calc,arrows,positioning}
> \begin{document}
> % define styles
> \tikzstyle{sumJunction} = [draw, circle,inner sep=2pt,minimum size=3pt]
> \tikzstyle{controller} = [draw, fill=blue!20, text width=5em,text centered,
> minimum height=4em]
> \tikzstyle{plant} = [draw, fill=red!20, text width=5em,text centered]
> \tikzstyle{separatorSmall} = [minimum size=6mm]
> \tikzstyle{scalarSignal} = [draw,-latex']
> \tikzstyle{vectorSignal} = [scalarSignal,line width=1.5pt]
> % some constants
> \def\sumJuncOffset{12.0}
> \def\sumJuncSignOffset{2.75}
> % scaling
> \tikzset{every node/.style={scale=1.0}}
> \begin{tikzpicture}
> % blocks
> \matrix [row sep=1mm,column sep=2mm] {
> % reference node 3
> \path node (ref3) {};
> % sum3
> \path ($(ref3)!\sumJuncOffset!(ref3.north)$) node (sum3p) [sumJunction] {+};
> \path ($(ref3)!\sumJuncOffset!(ref3.south)$) node (sum3f) [sumJunction]
> {+}; &
> % separator
> \path (ref3.east) node [separatorSmall] (sep3) {}; &
> % C3
> \path (sum3p.east) node (blockC1) [controller] {$C_1$};
> \path (sum3f.east) node (blockC2) [controller] {$C_2$}; &
> % separator
> \path (ref3.east) node [separatorSmall] (sep1c) {}; &
>
> % Plant
> \path (sep1c.east)
> let \p1 = ($ (blockC1.north) - (blockC2.south) $)
> in
> node [plant,minimum height=\y1] (blockP) {$P$};
> \\};
>
>    % sum3 -> C
>    \path [vectorSignal] (sum3p) -> (blockC1);
>    \path [vectorSignal] (sum3f) -> (blockC2);
>    % C -> P
>    \path [vectorSignal] (blockC1) -- (blockP.west |- blockC1);
>    \path [vectorSignal] (blockC2) -- (blockP.west |- blockC2);
> \end{tikzpicture}
> \end{document}
>

> ------------------------------------------------------------------------------
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> trial. Simplify your report design, integration and deployment - and focus
> on
> what you do best, core application coding. Discover what's new with
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> _______________________________________________
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>
>

--
Marco Sbodio
perl -e 'while(++$_){print$_,$/if("x"x$_)!~/^(xx+)\1+$/}'

Positioning of tikz graphics in text

2009-11-11T08:48:28Z

Hello!

I would like to ask a question.
I have a general problem with positioning tikz-pictures on a page. I read large parts of the pgf-manual and made an internet research but it is not clear to me how I can influence where a tikz-picture is placed on the page/ in the text.

It seems to me that tikz calculates the space it needs for all the element in the tikz-environment and then puts them on the current position (aligned to the left upper or lower corner?). It is clear to me how to position inside the tikz envrionment, the question is how the whole tikz-picture is placed in the text.

The current problem I have is when I draw a bended line defined by (virtual) control points. Tikz seems to believe that those virtual control points are part of the image and seems to reserve space for them, which makes the tikz element much bigger then it is, resulting in awful white spaces.

Here the example, I would like to have the "fish" aligned with the text:

The code for the fish is:

\newcommand{\tikzfish}[4]{%
\begin{scope}[scale=#3]
\filldraw [draw=#4,fill=#4] (#1,#2) .. controls +(1,-1.5) and +(-1,2) .. +(3,-0.5) .. controls +(2,-2.5) and +(1,1.5) .. +(0,-1) -- cycle;
\filldraw [black] (#1+2.8,#2-0.2) circle (0.05);
\filldraw [black] (#1+2.8,#2-0.7) -- +(0.1,0);
\end{scope}
}%

And in the text it is inserted by:
...
\item A species has two alternative forms \parbox[b]{1cm}{\tikz \tikzfish{100}{-20}{0.2}{red};}
and \tikz \tikzfish{0}{0}{0.2}{blue};
...

The position of the first point (first two arguments of \tikzfish) seems useless. Position is set automatically.

Again, it seems that the control point at (2,-2.5) makes the problem. Do you have any idea how to solve it? Usually people insert tikz elements in text as \node but fishes are no defined options for nodes. I would also be very thankful for more elegant methods.

Thank you very much in advance for any useful comments,
Hannes

Re: odd scaling behavoir

2009-11-11T01:00:39Z

Hi,

I think scaling is applied twice because matrices are also nodes.
Overriding the scale option at the matrix level like can be a solution :

\tikzset{every node/.style={scale=0.75}}

...

\matrix [row sep=1mm,column sep=2mm, scale=1.0] {
}

Sebastian

James Samir Ismail a écrit :

> Hello,
>
> I'm seeing some odd scaling behavior. My code is depicting a block
> diagram. One of the blocks, P, has a height that is dependent on the
> placement of the two blocks to its left, C_1 and C_2.
>
> When scaling is set to 1.0 (as in the code below), everything works as
> expected. However, once I set the scaling \tikzset{every
> node/.style={scale=1.0}} to something other than 1.0 (say, 0.75), P
> becomes incorrectly scaled.
>
> It's seems like the scaling is being applied twice. Maybe there's a
> better way to scale an entire picture (although this has worked
> beautifully int he past for me)? Any thoughts?
>
>
> Thanks,
> James
>
>
> Here's the code:
>
> \documentclass{article}
>
> \usepackage{tikz}
> \usetikzlibrary{calc,arrows,positioning}
>
> \begin{document}
>
> % define styles
> \tikzstyle{sumJunction} = [draw, circle,inner sep=2pt,minimum size=3pt]
> \tikzstyle{controller} = [draw, fill=blue!20, text width=5em,text
> centered, minimum height=4em]
> \tikzstyle{plant} = [draw, fill=red!20, text width=5em,text centered]
> \tikzstyle{separatorSmall} = [minimum size=6mm]
> \tikzstyle{scalarSignal} = [draw,-latex']
> \tikzstyle{vectorSignal} = [scalarSignal,line width=1.5pt]
>
> % some constants
> \def\sumJuncOffset{12.0}
> \def\sumJuncSignOffset{2.75}
>
> % scaling
> \tikzset{every node/.style={scale=1.0}}
>
> \begin{tikzpicture}
>
> % blocks
> \matrix [row sep=1mm,column sep=2mm] {
> % reference node 3
> \path node (ref3) {};
>
> % sum3
> \path ($(ref3)!\sumJuncOffset!(ref3.north)$) node (sum3p)
> [sumJunction] {+};
> \path ($(ref3)!\sumJuncOffset!(ref3.south)$) node (sum3f)
> [sumJunction] {+}; &
>
> % separator
> \path (ref3.east) node [separatorSmall] (sep3) {}; &
>
> % C3
> \path (sum3p.east) node (blockC1) [controller] {$C_1$};
> \path (sum3f.east) node (blockC2) [controller] {$C_2$}; &
> % separator
> \path (ref3.east) node [separatorSmall] (sep1c) {}; &
>
>
> % Plant
> \path (sep1c.east)
> let \p1 = ($ (blockC1.north) - (blockC2.south) $)
> in
> node [plant,minimum height=\y1] (blockP) {$P$};
> \\};
>
>
> % sum3 -> C
> \path [vectorSignal] (sum3p) -> (blockC1);
> \path [vectorSignal] (sum3f) -> (blockC2);
>
> % C -> P
> \path [vectorSignal] (blockC1) -- (blockP.west |- blockC1);
> \path [vectorSignal] (blockC2) -- (blockP.west |- blockC2);
>
> \end{tikzpicture}
> \end{document}
>
> ------------------------------------------------------------------------
>
> ------------------------------------------------------------------------------
> Let Crystal Reports handle the reporting - Free Crystal Reports 2008 30-Day
> trial. Simplify your report design, integration and deployment - and focus on
> what you do best, core application coding. Discover what's new with
> Crystal Reports now. http://p.sf.net/sfu/bobj-july
> ------------------------------------------------------------------------
>
> _______________________________________________
> pgf-users mailing list
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> https://lists.sourceforge.net/lists/listinfo/pgf-users
>

Re: odd scaling behavoir

2009-11-11T00:52:49Z

Hello James,

the way that I usually solve this kind of problems is by embedding the
whole tikzpicture into a node to which I apply scaling:

here is your code modified with this approach:

[[
\documentclass{article}

\usepackage{tikz}
\usetikzlibrary{calc,arrows,positioning}

\begin{document}

% define styles
\tikzstyle{sumJunction} = [draw, circle,inner sep=2pt,minimum size=3pt]
\tikzstyle{controller} = [draw, fill=blue!20, text width=5em,text centered,
minimum height=4em]
\tikzstyle{plant} = [draw, fill=red!20, text width=5em,text centered]
\tikzstyle{separatorSmall} = [minimum size=6mm]
\tikzstyle{scalarSignal} = [draw,-latex']
\tikzstyle{vectorSignal} = [scalarSignal,line width=1.5pt]

% some constants
\def\sumJuncOffset{12.0}
\def\sumJuncSignOffset{2.75}

\begin{tikzpicture}

\node [scale=0.37] {

\begin{tikzpicture}

% blocks
\matrix [row sep=1mm,column sep=2mm] {
% reference node 3
\path node (ref3) {};

% sum3
\path ($(ref3)!\sumJuncOffset!(ref3.north)$) node (sum3p) [sumJunction] {+};
\path ($(ref3)!\sumJuncOffset!(ref3.south)$) node (sum3f) [sumJunction] {+}; &

% separator
\path (ref3.east) node [separatorSmall] (sep3) {}; &

% C3
\path (sum3p.east) node (blockC1) [controller] {$C_1$};
\path (sum3f.east) node (blockC2) [controller] {$C_2$}; &
% separator
\path (ref3.east) node [separatorSmall] (sep1c) {}; &

% Plant
\path (sep1c.east)
let \p1 = ($ (blockC1.north) - (blockC2.south) $)
in
node [plant,minimum height=\y1] (blockP) {$P$};
\\};

% sum3 -> C
\path [vectorSignal] (sum3p) -> (blockC1);
\path [vectorSignal] (sum3f) -> (blockC2);

% C -> P
\path [vectorSignal] (blockC1) -- (blockP.west |- blockC1);
\path [vectorSignal] (blockC2) -- (blockP.west |- blockC2);

\end{tikzpicture}

};

\end{tikzpicture}

\end{document}
]]

I hope this helps.

Best Regards,
marco

On Wed, Nov 11, 2009 at 2:07 AM, James Samir Ismail <jsi@...> wrote:

> Hello,
> I'm seeing some odd scaling behavior. My code is depicting a block diagram.
> One of the blocks, P, has a height that is dependent on the placement of
> the two blocks to its left, C_1 and C_2.
> When scaling is set to 1.0 (as in the code below), everything works as
> expected. However, once I set the scaling \tikzset{every
> node/.style={scale=1.0}}  to something other than 1.0 (say, 0.75), P becomes
> incorrectly scaled.
> It's seems like the scaling is being applied twice. Maybe there's a better
> way to scale an entire picture (although this has worked beautifully int he
> past for me)? Any thoughts?
>
> Thanks,
> James
>
> Here's the code:
> \documentclass{article}
> \usepackage{tikz}
> \usetikzlibrary{calc,arrows,positioning}
> \begin{document}
> % define styles
> \tikzstyle{sumJunction} = [draw, circle,inner sep=2pt,minimum size=3pt]
> \tikzstyle{controller} = [draw, fill=blue!20, text width=5em,text centered,
> minimum height=4em]
> \tikzstyle{plant} = [draw, fill=red!20, text width=5em,text centered]
> \tikzstyle{separatorSmall} = [minimum size=6mm]
> \tikzstyle{scalarSignal} = [draw,-latex']
> \tikzstyle{vectorSignal} = [scalarSignal,line width=1.5pt]
> % some constants
> \def\sumJuncOffset{12.0}
> \def\sumJuncSignOffset{2.75}
> % scaling
> \tikzset{every node/.style={scale=1.0}}
> \begin{tikzpicture}
> % blocks
> \matrix [row sep=1mm,column sep=2mm] {
> % reference node 3
> \path node (ref3) {};
> % sum3
> \path ($(ref3)!\sumJuncOffset!(ref3.north)$) node (sum3p) [sumJunction] {+};
> \path ($(ref3)!\sumJuncOffset!(ref3.south)$) node (sum3f) [sumJunction]
> {+}; &
> % separator
> \path (ref3.east) node [separatorSmall] (sep3) {}; &
> % C3
> \path (sum3p.east) node (blockC1) [controller] {$C_1$};
> \path (sum3f.east) node (blockC2) [controller] {$C_2$}; &
> % separator
> \path (ref3.east) node [separatorSmall] (sep1c) {}; &
>
> % Plant
> \path (sep1c.east)
> let \p1 = ($ (blockC1.north) - (blockC2.south) $)
> in
> node [plant,minimum height=\y1] (blockP) {$P$};
> \\};
>
>    % sum3 -> C
>    \path [vectorSignal] (sum3p) -> (blockC1);
>    \path [vectorSignal] (sum3f) -> (blockC2);
>    % C -> P
>    \path [vectorSignal] (blockC1) -- (blockP.west |- blockC1);
>    \path [vectorSignal] (blockC2) -- (blockP.west |- blockC2);
> \end{tikzpicture}
> \end{document}
>
> ------------------------------------------------------------------------------
> Let Crystal Reports handle the reporting - Free Crystal Reports 2008 30-Day
> trial. Simplify your report design, integration and deployment - and focus
> on
> what you do best, core application coding. Discover what's new with
> Crystal Reports now. http://p.sf.net/sfu/bobj-july
> _______________________________________________
> pgf-users mailing list
> pgf-users@...
> https://lists.sourceforge.net/lists/listinfo/pgf-users
>
>

--
Marco Sbodio
perl -e 'while(++$_){print$_,$/if("x"x$_)!~/^(xx+)\1+$/}'

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odd scaling behavoir

2009-11-10T17:07:12Z

Hello,

I'm seeing some odd scaling behavior. My code is depicting a block diagram. One of the blocks, P, has a height that is dependent on the placement of the two blocks to its left, C_1 and C_2.

When scaling is set to 1.0 (as in the code below), everything works as expected. However, once I set the scaling \tikzset{every node/.style={scale=1.0}} to something other than 1.0 (say, 0.75), P becomes incorrectly scaled.

It's seems like the scaling is being applied twice. Maybe there's a better way to scale an entire picture (although this has worked beautifully int he past for me)? Any thoughts?

Thanks,

James

Here's the code:

\documentclass{article}

\usepackage{tikz}

\usetikzlibrary{calc,arrows,positioning}

\begin{document}

% define styles

\tikzstyle{sumJunction} = [draw, circle,inner sep=2pt,minimum size=3pt]

\tikzstyle{controller} = [draw, fill=blue!20, text width=5em,text centered, minimum height=4em]

\tikzstyle{plant} = [draw, fill=red!20, text width=5em,text centered]

\tikzstyle{separatorSmall} = [minimum size=6mm]

\tikzstyle{scalarSignal} = [draw,-latex']

\tikzstyle{vectorSignal} = [scalarSignal,line width=1.5pt]

% some constants

\def\sumJuncOffset{12.0}

\def\sumJuncSignOffset{2.75}

% scaling

\tikzset{every node/.style={scale=1.0}}

\begin{tikzpicture}

% blocks

\matrix [row sep=1mm,column sep=2mm] {

% reference node 3

\path node (ref3) {};

% sum3

\path ($(ref3)!\sumJuncOffset!(ref3.north)$) node (sum3p) [sumJunction] {+};

\path ($(ref3)!\sumJuncOffset!(ref3.south)$) node (sum3f) [sumJunction] {+}; &

% separator

\path (ref3.east) node [separatorSmall] (sep3) {}; &

% C3

\path (sum3p.east) node (blockC1) [controller] {$C_1$};

\path (sum3f.east) node (blockC2) [controller] {$C_2$}; &

% separator

\path (ref3.east) node [separatorSmall] (sep1c) {}; &

% Plant

\path (sep1c.east)

let \p1 = ($ (blockC1.north) - (blockC2.south) $)

node [plant,minimum height=\y1] (blockP) {$P$};

\\};

% sum3 -> C

\path [vectorSignal] (sum3p) -> (blockC1);

\path [vectorSignal] (sum3f) -> (blockC2);

% C -> P

\path [vectorSignal] (blockC1) -- (blockP.west |- blockC1);

\path [vectorSignal] (blockC2) -- (blockP.west |- blockC2);

\end{tikzpicture}

\end{document}

Split rectangles look weird.

2009-11-10T13:12:48Z

Hello,

I was trying to do some tricks with split rectangles and superimposing
some stuff
over them. As you can see when latex'ing the (slightly big) tex source
below this
works fine for the rectangle with the title "active". However, for the
inner rectangle
build by the same tricks everything looks skewed (it should look the same as the
outer one). Is there a way to fix this?

Regards,

Jay

\documentclass[a4paper]{article}

\usepackage{tikz}
\usetikzlibrary{positioning,shapes.misc,shapes.multipart,arrows,fadings}

\tikzset{
>=angle 90,
remember picture,
UML:shared/.style={
rounded corners=.25cm,
minimum height=.5cm,
minimum width=1cm,
text height=1.6ex,
text depth=.25ex,
font=\sffamily,
},
UML:shared:nest/.style={
UML:shared,
rectangle split,
rectangle split part align={center,left},
rectangle split part fill={red,yellow!20},
draw=white
},
UML:nested/.style={
UML:shared:nest,
rectangle split parts=2,
},
UML:topfill/.style={
bottom color=white,
top color=gray!50,
draw=white
},
UML:toptext/.style={
UML:shared,
text height=1.47ex,
text depth=.25ex,
},
UML:topbox/.style={
UML:shared
},
}

\newcommand{\UMLnestedo}[4][optional]{%
\node (#1) [UML:nested,#2] {#3 \nodepart{second} \tikz {#4}};%
\draw[UML:topfill] (#1.text split west) {[rounded corners=.25cm]%
-- (#1.north west) -- (#1.north east)}%
-- (#1.text split east) -- cycle;%
\draw (#1.mid) node[UML:toptext] {#3};%
\draw[UML:topbox] (#1.north west) -- (#1.north east) -- (#1.south east)%
-- (#1.south west) -- cycle;%
\draw (#1.text split west) -- (#1.text split east);%
}

\newcommand{\UMLinnertexto}[4][optional]{%
\node (#1) [UML:nested,#2] {#3 \nodepart{second} #4};%
\draw[UML:topfill] (#1.text split west) {[rounded corners=.25cm]%
-- (#1.north west) -- (#1.north east)}%
-- (#1.text split east) -- cycle;%
\draw (#1.mid) node[UML:toptext] {#3};%
\draw[UML:topbox] (#1.north west) -- (#1.north east) -- (#1.south east)%
-- (#1.south west) -- cycle;%
\draw (#1.text split west) -- (#1.text split east);%
}

\begin{document}

\begin{tikzpicture}
\UMLnestedo[active]{minimum width=10.5cm}{\parbox{10.5cm}{\centerline{active}}}{
\UMLinnertexto[ready]{}{ready}{blah}
}

\end{tikzpicture}

\end{document}

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Re: Drawing a line from one axis to another

2009-11-08T02:06:20Z

Hello Leo,

This is the only solution I can think of. The same has been done in this
example :
http://sourceforge.net/mailarchive/message.php?msg_name=005b01ca1475%24f6c2ef60%24e448ce20%24%40net

Sebastian

Leo a écrit :

> On 2009-11-08 09:39 +0000, Leo wrote:
>
>> How to draw a line between a point on the first axis to the second
>> one? Thank you very much.
>>
>
> I tried placing a named coordinate inside one axis and using it in
> another. It failed.
>
> Miraculously I can use the coordinate outside axis env. So I have
> reached the following solution:
>
> \documentclass{minimal}
> \usepackage{pgfplots}
> \begin{document}
> \begin{tikzpicture}
> \begin{axis}[name=axis1]
> \addplot coordinates {
> (0.1,0.2)
> (1.1,1.2)
> };
> \coordinate (A) at (rel axis cs:0.2,0.2);
> \end{axis}
> \begin{axis}[at={(axis1.east)},anchor=west,xshift=1cm]
> \addplot coordinates {
> (0.1,0.2)
> (1.1,1.2)
> };
> \coordinate (B) at (rel axis cs:0.2,0.2);
> \end{axis}
> \draw (A) -- (B);
> \end{tikzpicture}
> \end{document}
>
> Leo
>
>
> ------------------------------------------------------------------------------
> Let Crystal Reports handle the reporting - Free Crystal Reports 2008 30-Day
> trial. Simplify your report design, integration and deployment - and focus on
> what you do best, core application coding. Discover what's new with
> Crystal Reports now. http://p.sf.net/sfu/bobj-july
> _______________________________________________
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>

Re: Drawing a line from one axis to another

2009-11-08T01:57:10Z

On 2009-11-08 09:39 +0000, Leo wrote:
> How to draw a line between a point on the first axis to the second
> one? Thank you very much.

I tried placing a named coordinate inside one axis and using it in
another. It failed.

Miraculously I can use the coordinate outside axis env. So I have
reached the following solution:

\documentclass{minimal}
\usepackage{pgfplots}
\begin{document}
\begin{tikzpicture}
\begin{axis}[name=axis1]
\addplot coordinates {
(0.1,0.2)
(1.1,1.2)
};
\coordinate (A) at (rel axis cs:0.2,0.2);
\end{axis}
\begin{axis}[at={(axis1.east)},anchor=west,xshift=1cm]
\addplot coordinates {
(0.1,0.2)
(1.1,1.2)
};
\coordinate (B) at (rel axis cs:0.2,0.2);
\end{axis}
\draw (A) -- (B);
\end{tikzpicture}
\end{document}

Leo

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Drawing a line from one axis to another

2009-11-08T01:39:53Z

Hi there,

In the following example,

\documentclass{minimal}
\usepackage{pgfplots}
\begin{document}
\begin{tikzpicture}
\begin{axis}[name=axis1]
\addplot coordinates {
(0.1,0.2)
(1.1,1.2)
};
\end{axis}
\begin{axis}[at={(axis1.east)},anchor=west,xshift=1cm]
\addplot coordinates {
(0.1,0.2)
(1.1,1.2)
};
\end{axis}
\end{tikzpicture}
\end{document}

How to draw a line between a point on the first axis to the second one?
Thank you very much.

Best wishes,
Leo

--
Emacs uptime: 47 days, 0 hours, 53 minutes, 11 seconds

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