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charset=ISO-8859-2 Content-Transfer-Encoding: quoted-printable Try this way: \usemodule[tikz] \usemodule[pgfplots] \usemodule[pgfplotstable] \starttext \startluacode local dados=3D{}; for i=3D1,10 do dados[i]=3D2*i end context("\\starttikzpicture") context("\\pgfplotsset{width=3D10cm, compat=3D1.3, legend style=3D{font=3D\\tfx}}") context("\\startaxis[") context("xlabel=3D{L (m) },") context("ylabel=3D{ $T^2 (s^2)$},legend cell align=3Dleft, legend pos= =3Dnorth west]") context("\\addplot[only marks] table[row sep=3D\\\\]{") context("X Y\\\\") for key,value in pairs(dados) do context("%0.2f %0.1f \\\\", key, value) end context(" };") context("\\addlegendentry{Experimental points}") context("\\addplot table[row sep=3D\\\\,") context("y=3D{create col/linear regression=3D{y=3DY}}]{") context("X Y\\\\") for key,value in pairs(dados) do context("%0.2f %0.1f \\\\", key, value) end context("};") context("\\addlegendentry{") context("$\\pgfmathprintnumber{\\pgfplotstableregressiona} \\cdot x") context("\\pgfmathprintnumber[print sign]{\\pgfplotstableregressionb}$ lin. Regression}") context("\\stopaxis") context("\\stoptikzpicture") \stopluacode \stoptext Jorge 2014-02-16 23:00 GMT+00:00 Jaroslav Hajtmar : > Hi Lukas. > A year ago, I tried something similar when I wanted to make an animated > pdf images. > With using Lua, I can not handle eventually, but for inspiration attach a > piece of code that demonstrates how get into buffer some parameters witho= ut > Lua code. Maybe it inspires you in your solution. > > I apologize for dirty code, but I cutting it from my old library and my > context application. I did not clean it and I did not translate into > English. For those interested I can possibly do. > > Jarda Hajtmar > > Here is my example: > > > \usemodule[tikz] > \usemodule[pgfplots] > > %\define[1]\ListEntry{#1\par} > %\processcommalist[one,two,{three,four}]\ListEntry > %\processseparatedlist[one*two*three,four][*]\ListEntry > \def\zpracujparametry[#1]#2% > {\processcommalist[#1]{\nastavparametr{#2}}} > % Pou=BEit=ED: > % \zpracujparametry[1,5,3.7,4,5,8,9,11]{ > % \getbuffer[funkce1] > % \page > % } > > > \def\ZPRACUJPARAMETRY#1[#2]#3% > {\processseparatedlist[#2][#1]{\nastavparametr{#3}}} > % Pou=BEit=ED: > % \ZPRACUJPARAMETRY{znak separ=E1toru}[1,5,3.7,4,5,8,9,11]{ > % \getbuffer[funkce1] > % \page > % } > > > \def\pmparametr#1=3D$#2${\global\def\parametr{#1}\global\def\mparametr{#2= }} > > \def\nastavparametry#1#2{\pmparametr#2\global\def\pparametr{#2}#1}% > > \def\zpracujdvojparametry[#1]#2% > {\processcommalist[#1]{\nastavparametry{#2}}} > % Pou=BEit=ED: > % \zpracujdvojparametry[1=3D$a$,5=3D$b$,3.7=3D$c$,4=3D$d$,5=3D$e$,8=3D$f$= , > 9=3D$g$,11=3D$h$]{ > % \getbuffer[funkce1] > % \page > % } > > \def\ZPRACUJDVOJPARAMETRY#1[#2]#3% > {\processseparatedlist[#2][#1]{\nastavparametry{#3}}} > % Pou=BEit=ED: > % \ZPRACUJDVOJPARAMETRY{;}[1=3D$a$;5=3D$b$;3.7=3D$c$;4=3D$d$;5=3D$e$;8=3D= $ > f$;9=3D$g$;11=3D$h$]{ > % \getbuffer[funkce1] > % \page > % } > > > > \startbuffer[goniometrickefunkce] > \def\function{cos(deg(\x+\parametr))} > \def\permfunction{cos(deg(\x))} > \def\permfunctiontwo{sin(deg(\x))} > \startTEXpage > \starttikzpicture[scale=3D1] > \tikzset{style=3D{font=3D\ssxx}} > \startaxis > [xmin=3D-1.6, > xmax=3D10, > domain=3D-1.6:10, > ymin=3D-1.1, > ymax=3D1.1, > width=3D\textwidth, > height=3D0.3\textwidth, > axis x line=3Dmiddle, > axis y line=3Dmiddle, > axis equal=3Dtrue, > xlabel=3D$x$, > ylabel=3D$y$, > samples=3D600, > clip=3Dtrue, > xtick=3D{0}, > ytick=3D{-1,0,1}, > grid=3Dmajor, > extra x ticks=3D{-1.57,1.57,3.14,4.71,6.28,7.85,9.42,10.99,12.57}, extra = x > tick labels=3D{$-\frac{\pi}{2}$,$\frac{\pi}{2}$,$\pi$,$3\!\frac{ > \pi}{2}$,$2\pi$,$5\!\frac{\pi}{2}$,$3\pi$}, > title=3D{{\framed[frame=3Doff,height=3D1cm]{\blue $\ssb f\!:\ y=3D\cos{(x > \mparametr )}$}}}, > ] > > \addplot[color=3Dyellow, line width=3D0.5pt] {\permfunctiontwo}; > \addplot[color=3Dred, line width=3D0.5pt] {\permfunction}; > \addplot[color=3Dblue, line width=3D1pt] {\function}; > > \stopaxis > \stoptikzpicture > \stopTEXpage > \stopbuffer > > > > > > > > > > \starttext > > \ZPRACUJDVOJPARAMETRY{*}[1.57=3D$+\frac{\pi}{2}$*1.047=3D$+\ > frac{\pi}{3}$*0.785=3D$+\frac{\pi}{4}$*0.524=3D$+\frac{\pi}{6}$ > *0=3D$-0$*-0.524=3D$-\frac{\pi}{6}$*-0.785=3D$-\frac{\pi}{4}$*-1. > 047=3D$-\frac{\pi}{3}$*-1.57=3D$-\frac{\pi}{2}$*-3.142=3D$-\pi$*- > 4.712=3D$-\frac{3\pi}{2}$*6.28=3D$-2\pi$]{ > \getbuffer[goniometrickefunkce] > \page > } > > \stoptext > > > > > > > Dne 15.2.2014 20:38, Luk=E1=B9 Proch=E1zka napsal(a): > >> Hello, >> >> I just started experimenting with pgfplots package. >> >> I'd have two questions: >> >> 1) When plotting/loading a data file: Is it possible to specify the >> comment mark, which is '#' and '%" by default? I'd need to treat ';' as = a >> comment mark, too. >> >> 2) How to pass coordinates of plot points by Lua? >> >> The following code: >> >> ---- >> \usemodule[tikz] >> \usemodule[pgfplots] >> >> \startluacode >> data =3D {{5, 15}, {20, 20}, {24, -24}} >> >> plot =3D function(data) >> local str >> >> for i, v in ipairs(data) do >> str =3D (str or "") .. "(" .. v[1] .. "," .. v[2] .. ")" >> end >> >> print("Crds=3D", str) >> >> context(str) >> end >> \stopluacode >> >> \starttext >> \starttikzpicture >> \startaxis[] >> \addplot[mark=3Dnone,color=3Dred] coordinates {(11, 5) (12, 18)}; % THIS= PLOT >> IS OK >> \addplot[mark=3Dnone,color=3Dred] coordinates {\ctxlua{plot(data)}}; % T= HIS >> PLOT HAS NO POINT (?!) >> \stopaxis >> \stoptikzpicture >> \stoptext >> ---- >> >> gives error: >> >> " >> ... >> fonts > fallback modern rm 12pt is loaded >> Crds=3D (5,15)(20,20)(24,-24) >> Package pgfplots: Error! Sorry, I could not read the plot coordinates >> near '(5,15)(20,20)(24,-24)'. Please check for format mistakes. >> ! Package pgfplots Warning: the current plot has no coordinates (or all >> have been filtered away)... >> " >> >> Any idea from someone more familiar with pgfplots would be appreciated. >> >> TIA. >> >> Best regards, >> >> Lukas >> >> >> >> >> ____________________________________________________________ >> _______________________ >> If your question is of interest to others as well, please add an entry t= o >> 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 >> ____________________________________________________________ >> _______________________ >> > > ____________________________________________________________ > _______________________ > 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 > ____________________________________________________________ > _______________________ > --=20 Atentamente DesdeChaves --f46d044281923af69704f28ec023 Content-Type: text/html; charset=ISO-8859-2 Content-Transfer-Encoding: quoted-printable
Try this way:

\usemodule[tikz]
\usemodule[pgfplots]
\usemodule[pgfplotstable]
<= br>
\starttext

\startluacode

local dados=3D{};

for i=3D1,10 do
dados[i]=3D2*i
end

context(&quo= t;\\starttikzpicture")
=A0 =A0 context("\\pgfplotsset{w= idth=3D10cm, compat=3D1.3, legend style=3D{font=3D\\tfx}}")
=A0 =A0 context("\\startaxis[")
=A0 =A0 context(&q= uot;xlabel=3D{L =A0(m) },")
=A0 =A0 context("ylabel=3D{= $T^2 (s^2)$},legend cell align=3Dleft, legend pos=3Dnorth west]")
=A0 =A0 context("\\addplot[only marks] table[row sep=3D\\\\]{&q= uot;)
=A0 =A0 =A0context("X Y\\\\")
for key,value in pai= rs(dados) do=A0
context("%0.2f %0.1f \\\\", key, value)= =A0
end
=A0context(" =A0 };")
=A0 = =A0 context("\\addlegendentry{Experimental points}")
=A0 =A0 context("\\addplot table[row sep=3D\\\\,")
=A0 =A0 context("y=3D{create col/linear regression=3D{y=3DY}}]{"= )
=A0 =A0 context("X Y\\\\")
for key,value in= pairs(dados) do=A0
context("%0.2f %0.1f \\\\", key, value)=A0
end
=A0 =A0 context("};")
=A0 =A0 context("\\ad= dlegendentry{")
=A0 =A0 =A0 =A0 context("$\\pgfmathprin= tnumber{\\pgfplotstableregressiona} \\cdot x")
=A0 =A0 =A0 =A0 context("\\pgfmathprintnumber[print sign]{\\pgfpl= otstableregressionb}$ lin. Regression}")
=A0 =A0 context(&qu= ot;\\stopaxis")
context("\\stoptikzpicture")
=

\stopluacode


\stoptext


Jorge



2014-= 02-16 23:00 GMT+00:00 Jaroslav Hajtmar <hajtmar@gyza.cz>:
Hi Lukas.
A year ago, I tried something similar when I wanted to make an animated pdf= images.
With using Lua, I can not handle eventually, but for inspiration attach a p= iece of code that demonstrates how get into buffer some parameters without = Lua code. Maybe it inspires you in your solution.

I apologize for dirty code, but I cutting it from my old library and my con= text application. I did not clean it and I did not translate into English. = For those interested I can possibly do.

Jarda Hajtmar

Here is my example:


\usemodule[tikz]
\usemodule[pgfplots]

%\define[1]\ListEntry{#1\par}
%\processcommalist[one,two,{three,four}]\ListEntry
%\processseparatedlist[one*two*three,four][*]\ListEntry
\def\zpracujparametry[#1]#2%
{\processcommalist[#1]{\nastavparametr{#2}}}
% Pou=BEit=ED:
% \zpracujparametry[1,5,3.7,4,5,8,9,11]{
% \getbuffer[funkce1]
% \page
% }


\def\ZPRACUJPARAMETRY#1[#2]#3%
{\processseparatedlist[#2][#1]{\nastavparametr{#3}}}
% Pou=BEit=ED:
% \ZPRACUJPARAMETRY{znak separ=E1toru}[1,5,3.7,4,5,8,9,11]{
% \getbuffer[funkce1]
% \page
% }


\def\pmparametr#1=3D$#2${\global\def\parametr{#1}\global\def\= mparametr{#2}}

\def\nastavparametry#1#2{\pmparametr#2\global\def\pparametr{#= 2}#1}%

\def\zpracujdvojparametry[#1]#2%
{\processcommalist[#1]{\nastavparametry{#2}}}
% Pou=BEit=ED:
% \zpracujdvojparametry[1=3D$a$,5=3D$b$,3.7=3D$c$,4=3D$d$,5=3D$e$,8= =3D$f$,9=3D$g$,11=3D$h$]{
% \getbuffer[funkce1]
% \page
% }

\def\ZPRACUJDVOJPARAMETRY#1[#2]#3%
{\processseparatedlist[#2][#1]{\nastavparametry{#3}}}
% Pou=BEit=ED:
% \ZPRACUJDVOJPARAMETRY{;}[1=3D$a$;5=3D$b$;3.7=3D$c$;4=3D$d$;5=3D$e$= ;8=3D$f$;9=3D$g$;11=3D$h$]{
% \getbuffer[funkce1]
% \page
% }



\startbuffer[goniometrickefunkce]
\def\function{cos(deg(\x+\parametr))}
\def\permfunction{cos(deg(\x))}
\def\permfunctiontwo{sin(deg(\x))}
\startTEXpage
\starttikzpicture[scale=3D1]
\tikzset{style=3D{font=3D\ssxx}}
\startaxis
[xmin=3D-1.6,
xmax=3D10,
domain=3D-1.6:10,
ymin=3D-1.1,
ymax=3D1.1,
width=3D\textwidth,
height=3D0.3\textwidth,
axis x line=3Dmiddle,
axis y line=3Dmiddle,
axis equal=3Dtrue,
xlabel=3D$x$,
ylabel=3D$y$,
samples=3D600,
clip=3Dtrue,
xtick=3D{0},
ytick=3D{-1,0,1},
grid=3Dmajor,
extra x ticks=3D{-1.57,1.57,3.14,4.71,6.28,7.85,9.42,10.99,12.57}, e= xtra x tick labels=3D{$-\frac{\pi}{2}$,$\frac{\pi}{2}$,$\pi$,$3\!\fr= ac{\pi}{2}$,$2\pi$,$5\!\frac{\pi}{2}$,$3\pi$},
title=3D{{\framed[frame=3Doff,height=3D1cm]{\blue $\ssb f\!:\ y=3D\c= os{(x \mparametr )}$}}},
]

\addplot[color=3Dyellow, line width=3D0.5pt] {\permfunctiontwo};
\addplot[color=3Dred, line width=3D0.5pt] {\permfunction};
\addplot[color=3Dblue, line width=3D1pt] {\function};

\stopaxis
\stoptikzpicture
\stopTEXpage
\stopbuffer









\starttext

\ZPRACUJDVOJPARAMETRY{*}[1.57=3D$+\frac{\pi}{2}$*1.047=3D$+\f= rac{\pi}{3}$*0.785=3D$+\frac{\pi}{4}$*0.524=3D$+\frac{\pi}{6}$*0=3D$-0$*-0.524=3D$-\frac{\pi}{6}$*-0.785=3D$-\frac{\pi}{4}$*-1.047=3D$-\frac{\pi}{3}$*-1.57=3D$-\frac{\pi}{2}$*-3.142=3D$-\pi$= *-4.712=3D$-\frac{3\pi}{2}$*6.28=3D$-2\pi$]{
\getbuffer[goniometrickefunkce]
\page
}

\stoptext






Dne 15.2.2014 20:38, Luk=E1=B9 Proch=E1zka napsal(a):
Hello,

I just started experimenting with pgfplots package.

I'd have two questions:

1) When plotting/loading a data file: Is it possible to specify the comment= mark, which is '#' and '%" by default? I'd need to tr= eat ';' as a comment mark, too.

2) How to pass coordinates of plot points by Lua?

The following code:

----
\usemodule[tikz]
\usemodule[pgfplots]

\startluacode
data =3D {{5, 15}, {20, 20}, {24, -24}}

plot =3D function(data)
local str

for i, v in ipairs(data) do
str =3D (str or "") .. "(" .. v[1] .. "," .. = v[2] .. ")"
end

print("Crds=3D", str)

context(str)
end
\stopluacode

\starttext
\starttikzpicture
\startaxis[]
\addplot[mark=3Dnone,color=3Dred] coordinates {(11, 5) (12, 18)}; % THIS PL= OT IS OK
\addplot[mark=3Dnone,color=3Dred] coordinates {\ctxlua{plot(data)}}; % THIS= PLOT HAS NO POINT (?!)
\stopaxis
\stoptikzpicture
\stoptext
----

gives error:

"
...
fonts > fallback modern rm 12pt is loaded
Crds=3D (5,15)(20,20)(24,-24)
Package pgfplots: Error! Sorry, I could not read the plot coordinates near = '(5,15)(20,20)(24,-24)'. Please check for format mistakes.
! Package pgfplots Warning: the current plot has no coordinates (or all hav= e been filtered away)...
"

Any idea from someone more familiar with pgfplots would be appreciated.

TIA.

Best regards,

Lukas




_____________________________________________________________= ______________________
If your question is of interest to others as well, please add an entry to t= he Wiki!

maillist : ntg-cont= ext@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context
webpage =A0: http://= www.pragma-ade.nl / http://tex.aanhet.net
archive =A0: http://foundry.supelec.fr/projects/contextrev/ wiki =A0 =A0 : http:= //contextgarden.net
_____________________________________________________________= ______________________

_____________________________________________________________= ______________________
If your question is of interest to others as well, please add an entry to t= he Wiki!

maillist : ntg-cont= ext@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context
webpage =A0: http://= www.pragma-ade.nl / http://tex.aanhet.net
archive =A0: http://foundry.supelec.fr/projects/contextrev/ wiki =A0 =A0 : http:= //contextgarden.net
_____________________________________________________________= ______________________



--
= Atentamente

DesdeChaves
--f46d044281923af69704f28ec023-- --===============1868033465== Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline ___________________________________________________________________________________ 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 ___________________________________________________________________________________ --===============1868033465==--