Re: [NTG-context] Passing text to Metapost functions
David Arnold wrote: Hans, I've tried various things without much success. I cannot seem to access the contents of xlbl below. Is this approach ever going to work? I can make your example work by passing the argument as a true metapost string: * remove the \MPstring command: draw textext.origin(xlbl); * create_axes(xmin,xmax,ymin,ymax,ux,uy)(x); But it is out of sync: you always have to call texexec twice whenever you make changes. Cheers, Taco ___ ntg-context mailing list ntg-context@ntg.nl http://www.ntg.nl/mailman/listinfo/ntg-context
Re: [NTG-context] smaller symbol
Ciro Soto wrote: Invisible Friends: I am trying to use \ll and \gg instead of quotation marks. The problem is that they are too big for my taste. What would be the easiest way to make them, say 0.75\bodyfontsize ? Don't you want \leftguillemot and \rightguillemot? Anyway, there are fake ones based omn \ll and \gg, these should be what you had in mind: \fakeleftguillemot, \fakerightguillemot Cheers, Taco ___ ntg-context mailing list ntg-context@ntg.nl http://www.ntg.nl/mailman/listinfo/ntg-context
Re: [NTG-context] image command in Metapost
David Arnold wrote: What does the image command do? Where is it documented? It executes a set of commands and creates an expression of type picture from them. It is defined in the plain macros. Cheers, Taco ___ ntg-context mailing list ntg-context@ntg.nl http://www.ntg.nl/mailman/listinfo/ntg-context
Re: [NTG-context] \definedescription question
VnPenguin wrote: On 12/26/05, Willi Egger [EMAIL PROTECTED] wrote: No, it does not work for me :( There has been a patch to this core recently. Will investigate. Taco ___ ntg-context mailing list ntg-context@ntg.nl http://www.ntg.nl/mailman/listinfo/ntg-context
Re: [NTG-context] image command in Metapost
Perfect. Thanks. :-) On Dec 27, 2005, at 12:19 AM, Taco Hoekwater wrote: David Arnold wrote: What does the image command do? Where is it documented? It executes a set of commands and creates an expression of type picture from them. It is defined in the plain macros. Cheers, Taco ___ ntg-context mailing list ntg-context@ntg.nl http://www.ntg.nl/mailman/listinfo/ntg-context ___ ntg-context mailing list ntg-context@ntg.nl http://www.ntg.nl/mailman/listinfo/ntg-context
Re: [NTG-context] Passing text to Metapost functions
OK. But I need it set as btex $x$ etex at the right end of the horizontal axis. On Dec 27, 2005, at 12:09 AM, Taco Hoekwater wrote: David Arnold wrote: Hans, I've tried various things without much success. I cannot seem to access the contents of xlbl below. Is this approach ever going to work? I can make your example work by passing the argument as a true metapost string: * remove the \MPstring command: draw textext.origin(xlbl); * create_axes(xmin,xmax,ymin,ymax,ux,uy)(x); But it is out of sync: you always have to call texexec twice whenever you make changes. Cheers, Taco ___ ntg-context mailing list ntg-context@ntg.nl http://www.ntg.nl/mailman/listinfo/ntg-context ___ ntg-context mailing list ntg-context@ntg.nl http://www.ntg.nl/mailman/listinfo/ntg-context
Re: [NTG-context] Columns (text alignment)
Peter Rolf wrote: I attach my working example. Thank you Peter! Your example has been enlightening. Fabio ___ ntg-context mailing list ntg-context@ntg.nl http://www.ntg.nl/mailman/listinfo/ntg-context
Re: [NTG-context] Passing text to Metapost functions
David Arnold wrote: OK. But I need it set as btex $x$ etex at the right end of the horizontal axis. I'm not going to fiddle with the right end for you, but You can make it $x$ by: create_axes(xmin,xmax,ymin,ymax,ux,uy)($x$); Cheers, Taco ___ ntg-context mailing list ntg-context@ntg.nl http://www.ntg.nl/mailman/listinfo/ntg-context
Re: [NTG-context] \definedescription question
VnPenguin wrote: On 12/26/05, Willi Egger [EMAIL PROTECTED] wrote: No, it does not work for me :( After checking, it turns out it works for me as well. I have: tex : pdfeTeXk, 3.141592-1.30.3-2.2 (Web2C 7.5.5) context : ver: 2005.12.19 cont-en : ver: 2005.12.19 fmt: 2005.12.22 mes: english So perhaps something else is wrong. What is your log file? Cheers, Taco ___ ntg-context mailing list ntg-context@ntg.nl http://www.ntg.nl/mailman/listinfo/ntg-context
[NTG-context] no 'D' in math-eul.tex
In May I discovered that there was a typo in math-eul.tex rendering the lower-case 'd' an 'e'. Amazingly, the same problem occurs also for the upper-case 'D', and requires changing the line \definemathcharacter [D] [nothing] [mr] [45] into \definemathcharacter [D] [nothing] [mr] [44] Apparently this beautiful font is severely underused to allow this typo to survive! Regards, Johan -- Johan Sandblom N8, MRC, Karolinska sjh t +46851776108 17176 Stockholm m +46735521477 Sweden What is wanted is not the will to believe, but the will to find out, which is the exact opposite - Bertrand Russell ___ ntg-context mailing list ntg-context@ntg.nl http://www.ntg.nl/mailman/listinfo/ntg-context
Re: [NTG-context] Weird things...
Fabio Mancinelli wrote: Why this happens? Because an interal ConTeXt macro (\dododosetlayer) is calling a TeX primitive (\chardef) with a number that is higher than 256. That number has become so high because of the columnset definitions, which is why changing the ordering fixed it. A full fix of the bug requires some work, simply changing that one \chardef didn't cut it (the 'bad character code' moves elsewhere). Cheers, Taco ___ ntg-context mailing list ntg-context@ntg.nl http://www.ntg.nl/mailman/listinfo/ntg-context
Re: [NTG-context] smaller symbol
Thank you Taco and Mojca.
I had tried with \guillemotright and \guillemotleft based on a latex manual
I found in the web. Since it didn't work, I then tried the \ll and \gg combination.
Thank you Taco for the right syntax of the keywords.
CiroOn 12/27/05, Mojca Miklavec
[EMAIL PROTECTED] wrote:
On 12/26/05, Ciro Soto wrote: Invisible Friends:I am trying to use \ll and \gg instead of quotation marks.The problem is that they are too big for my taste.What would be the easiest way to make them, say
0.75\bodyfontsize ?I guess that \leftguillemot instead of \ll already solves theproblem, but if you really want to scale them, it's most elegant to doit this way:\installlanguage[es]
[leftquotation={\scale[height=.75ex]{\leftguillemot}}, rightquotation={\scale[height=.75ex]{\rightguillemot}}] % .75\bodyfontsize is way too big % or the ugly \fakeleftguillemot instead of \leftguillemot, as Taco proposed
\mainlanguage[es]\starttext\quotation{To quote or not to quote,} that's the question!\stoptext(Even if you don't need to scale them, this is the way how to getguillemots instead of double commas.)
The only problem is that they're scaled so that baseline remains whereit is: quotation marks are placed too low because of that. So youprobably want to do raise them a bit as well:\raise.25ex\hbox{\scale[height=.5ex]{\rightguillemot}}
Mojca
-- All problems are at the interface. Each one of them has a solution.from: The Guitar Maker: An Exploration of Wisdom, Design and Love. A novel by C. A. Soto Aguirre.
http://www.TheGuitarMakerExploration.com/
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Re: [NTG-context] \definedescription question
On 12/27/05, Taco Hoekwater [EMAIL PROTECTED] wrote: VnPenguin wrote: On 12/26/05, Willi Egger [EMAIL PROTECTED] wrote: No, it does not work for me :( After checking, it turns out it works for me as well. I have: tex : pdfeTeXk, 3.141592-1.30.3-2.2 (Web2C 7.5.5) context : ver: 2005.12.19 cont-en : ver: 2005.12.19 fmt: 2005.12.22 mes: english So perhaps something else is wrong. What is your log file? Hi Taco Willi, It works now ;-) So I think I done some errors yesterday :) Thanks and Happy holidays, Cheers -- http://vnoss.org Vietnamese Open Source Software Community ___ ntg-context mailing list ntg-context@ntg.nl http://www.ntg.nl/mailman/listinfo/ntg-context
[NTG-context] running ConTeXt from the new DVD
Hello, I just got the new DVD, TeX Collection 2005, tried to run cdemo.bat and to compile one of the sample documents, but: texmfstart newtexexec.rb --autopdf --pdf demo-tex.tex TeXExec | processing document 'demo-tex.tex' TeXExec | provide ctx file TeXExec | tex processing method: context TeXExec | TeX run 1 TeXExec | tex engine: pdfetex TeXExec | tex format: cont-en TeXExec | progname: context This is pdfeTeX, Version 3.141592-1.30.3-2.2 (Web2c 7.5.5) \write18 enabled. I can't find the format file `pdfetex.fmt'! pdfetex: unrecognized option `--alias=context' pdfetex: unrecognized option `--undump=cont-en' TeXExec | runtime: 3.315 Exit code: 0 texexec --make --all cannot be executed since the CD is not writable. Can this be overcome anyhow, is there a problem specific to my PC or is this distribution on DVD unusable as such? (I often have similar format missing problems when I update MikTeX but then the problem disappers when I reboot the computer - not that I understand why since I refresh the database and remake all the formats each time anyway.) Thank you, Mojca ___ ntg-context mailing list ntg-context@ntg.nl http://www.ntg.nl/mailman/listinfo/ntg-context
Re: [NTG-context] Weird things...
Fabio Mancinelli wrote: Hi all... I would like to report a weird behavior when compiling the attached tex file... ah. that one took me a while .. in page-lyr.tex, \chardef\layerpagebox\csname\@@layerbox#2\currentlayer\layerpage\endcsname \chardef\layerbox\csname\@@layerbox#3\endcsname should be: \mathchardef\layerpagebox\csname\@@layerbox#2\currentlayer\layerpage\endcsname \mathchardef\layerbox\csname\@@layerbox#3\endcsname (column sets need lots of boxes in etex mode and then the layer box ends up 255 and using a chardef here is not working any more) [you need to remake the format] Hans ___ ntg-context mailing list ntg-context@ntg.nl http://www.ntg.nl/mailman/listinfo/ntg-context
Re: [NTG-context] Weird things...
Taco Hoekwater wrote: Fabio Mancinelli wrote: Why this happens? Because an interal ConTeXt macro (\dododosetlayer) is calling a TeX primitive (\chardef) with a number that is higher than 256. That number has become so high because of the columnset definitions, which is why changing the ordering fixed it. A full fix of the bug requires some work, simply changing that one \chardef didn't cut it (the 'bad character code' moves elsewhere). another one: \mathchardef\collectorbox\csname\@@collectorbox#1\endcsname two times in core-box Hans ___ ntg-context mailing list ntg-context@ntg.nl http://www.ntg.nl/mailman/listinfo/ntg-context
Re: [NTG-context] running ConTeXt from the new DVD
Mojca Miklavec wrote: Hello, I just got the new DVD, TeX Collection 2005, tried to run cdemo.bat and to compile one of the sample documents, but: texmfstart newtexexec.rb --autopdf --pdf demo-tex.tex TeXExec | processing document 'demo-tex.tex' TeXExec | provide ctx file TeXExec | tex processing method: context TeXExec | TeX run 1 TeXExec | tex engine: pdfetex TeXExec | tex format: cont-en TeXExec | progname: context This is pdfeTeX, Version 3.141592-1.30.3-2.2 (Web2c 7.5.5) \write18 enabled. I can't find the format file `pdfetex.fmt'! pdfetex: unrecognized option `--alias=context' pdfetex: unrecognized option `--undump=cont-en' TeXExec | runtime: 3.315 Exit code: 0 texexec --make --all cannot be executed since the CD is not writable. Can this be overcome anyhow, is there a problem specific to my PC or is this distribution on DVD unusable as such? (I often have similar format missing problems when I update MikTeX but then the problem disappers when I reboot the computer - not that I understand why since I refresh the database and remake all the formats each time anyway.) cdemo is using the minimal but it looks like miktex is loaded and not the minimal binary ... there was a fix for this recently but that will not work when running from cd Hans ___ ntg-context mailing list ntg-context@ntg.nl http://www.ntg.nl/mailman/listinfo/ntg-context
Re: [NTG-context] no 'D' in math-eul.tex
Johan Sandblom wrote: In May I discovered that there was a typo in math-eul.tex rendering the lower-case 'd' an 'e'. Amazingly, the same problem occurs also for the upper-case 'D', and requires changing the line \definemathcharacter [D] [nothing] [mr] [45] into \definemathcharacter [D] [nothing] [mr] [44] ok, fixed, Apparently this beautiful font is severely underused to allow this typo to survive! or maybe the D is not used that much (those chars are only used alone, not in words, so if one can do with A-C the D is never hit) Hans ___ ntg-context mailing list ntg-context@ntg.nl http://www.ntg.nl/mailman/listinfo/ntg-context
[NTG-context] description question (bis)
Hi, I have another question about description list : How to make description list with idented text, not header ? Example: This is header This is the text of description. This is the text of description. This is the text of description. This is the text of description. This is the text of description. This is the text of description. Thank you in advance, Cheers, -- http://vnoss.org Vietnamese Open Source Software Community ___ ntg-context mailing list ntg-context@ntg.nl http://www.ntg.nl/mailman/listinfo/ntg-context
[NTG-context] It works, passing text
Taco,
I have something that works. Thanks for hanging in there with me.
%output=pdf
\setupcolors[state=start]
\definecolor[gridlines][s=0.7]
\startMPinclusions
color gridlines; gridlines:=\MPcolor{gridlines};
vardef create_grid(expr xxmin,xxmax,xxscl,yymin,yymax,yyscl,uux,uuy)=
for k=xxmin step xxscl until xxmax:
draw (xmin*uux,k*uuy)--(xmax*uux,k*uuy) withcolor \MPcolor
{gridlines};
draw (k*uux,ymin*uuy)--(k*uux,ymax*uuy) withcolor \MPcolor
{gridlines};
endfor;
enddef;
vardef create_axes (expr xxmin,xxmax,yymin,yymax,uux,uuy) (text
xlbl,ylbl) =
textextoffset:=3pt;
picture p; p:=textext.rt(xlbl); p:=p shifted (1.05*xxmax*ux,0);
picture q; q:=textext.top(ylbl); q:=q shifted (0,1.05*yymax*uy);
drawdblarrow (1.05*xxmin*uux,0)--(1.05*xxmax*uux,0);
draw p;
drawdblarrow (0,1.05*yymin*uuy)--(0,1.05*yymax*uuy);
draw q;
enddef;
vardef drawf(expr xxmin,xxmax,yymin,yymax,uux,uuy,n)=
path p; p:=(xxmin,f(xxmin));
numeric dx; dx=(xxmax-xxmin)/n;
for x=xmin step dx until xxmax:
p:=p--(x,f(x));
endfor;
p:=p--(xxmax,f(xxmax));
path cpath;
cpath:=(xxmin,yymin)--(xxmax,yymin)--(xxmax,yymax)--(xxmin,yymax)--
cycle;
p:=p cutbefore cpath;
p:=reverse p;
p:=p cutbefore cpath;
p:=p xyscaled (uux,uuy);
drawdblarrow p withcolor blue;
enddef;
\stopMPinclusions
\starttext
\startMPpage
%initialize function
vardef f(expr x)=
x*x
enddef;
%initialize window parameters
numeric xmin, xmax, xscl, ymin, ymax, yscl;
xmin:=-5;
xmax:=5;
xscl:=1;
ymin:=-5;
ymax:=5;
yscl:=1;
%initialize number of points
numeric num_points;
num_points:=100;
%initialize dimensions of image
numeric width, height;
width=3in;
height=3in;
%initialize scale
numeric ux, uy;
(xmax-xmin)*ux=width; (ymax-ymin)*uy=height;
%create the grid
create_grid(xmin,xmax,xscl,ymin,ymax,yscl,ux,uy);
%create the axes
create_axes(xmin,xmax,ymin,ymax,ux,uy)($x$)($y$);
%draw the function
drawf(xmin,xmax,ymin,ymax,ux,uy,num_points);
\stopMPpage
\stoptext
%%% Local Variables:
%%% mode: conTeXt-en
%%% End:
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Re: [NTG-context] \definedescription question
Willi Egger wrote:
Hi,
Her the following works:
\definedescription
[Desc]
[location=top,hang=3,headstyle={\color[red]}]
or
\definedescription
[Desc]
[location=top,hang=3,headstyle={\switchtobodyfont[34pt]\bf\color[red]}]
Willi
VnPenguin wrote:
Hi all,
I'm trying to define a description:
\definedescription
[Desc]
[location=top,hang=3,headcolor=red]
But my PDF has not color for description header (I have already
\setupcolors[state=start]).
Another test:
\definedescription
[Desc]
[location=top,hang=3,headstyle={\switchtobodyfont[16pt]\red\bf}]
Does not work :(
Question: How to define color font size for description header ? The
document of description is not complet. Search on Wiki Mailing list
can not help me.
this shoudl work:
\setupcolors[state=start]
\definedescription
[Desc]
[location=top,hang=3,headstyle=bold,headcolor=red]
\starttext
\Desc {test} test
\stoptext
in
{\switchtobodyfont[16pt]\red\bf}
the \red may fail in some cases due to implicit grouping
Hans
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Re: [NTG-context] description question (bis)
VnPenguin wrote:
Hi,
I have another question about description list : How to make
description list with idented text, not header ?
Example:
This is header
This is the text of description. This is the text of description.
This is the text of description. This is the text of description.
This is the text of description. This is the text of description.
Thank you in advance,
ugly but working:
\setupcolors[state=start]
\definedescription
[Desc]
[location=top,
hang=3,
headstyle=bold,
headcolor=red,
command=\hskip-2cm,
margin=2cm]
\starttext
\input tufte \startDesc {test} \input tufte \stopDesc
\stoptext
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Re: [NTG-context] \setupMPvariables in \startMPpage
David Arnold wrote:
All,
Why doesn't this work?
%output=pdf
\startuseMPgraphic{usquare}
draw unitsquare scaled 4cm;
\stopuseMPgraphic
\starttext
\startMPpage
\useMPgraphic{square}
\stopMPpage
\stoptext
because you nest a graphic, kind of
beginfig(1) beginfig(2) draw unitsquare scaled 4cm; endfig ; endfig ;
Hans
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Re: [NTG-context] \setupMPvariables in \startMPpage
David Arnold wrote:
Why doesn't this work?
%output=pdf
\startuseMPgraphic{usquare}
draw unitsquare scaled \MPvar{u};
\stopuseMPgraphic
\starttext
\startMPpage
\setupMPvariables[usquare][u=4cm]
\includeMPgraphic{usquare}
\stopMPpage
\stoptext
because
(1) after startMPpage metapost code is expected (or something like
\includeMPgraphic{...} that expands to mp code
(2) when the setup is moved outside the startMPpage, contex does not
know what vars to preset
however, this works (MPrawvar is undocumented, yet)
\startuseMPgraphic{usquare}
draw unitsquare scaled \MPrawvar{usquare}{u};
\stopuseMPgraphic
\starttext
\setupMPvariables[usquare][u=4cm]
\startMPpage
\includeMPgraphic{usquare}
\stopMPpage
\stoptext
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Re: [NTG-context] hlingrid text t parameter?
David Arnold wrote: All, In mp-grid.mp, I find this definition: def hlingrid (expr Min, Max, Step, Length, Width) text t = image ( for i=Min step Step until Max+grid_eps : draw (origin--(Width,0)) shifted (0,i*(Length/Max)) t ; endfor ; ) ; enddef ; See the text t at the end of the first line? Can someone tell me what that does and can I have a small example of its use? t (text) is anything upto the ; so you can use it to pass things like 'withcolor red' and so Hans ___ ntg-context mailing list ntg-context@ntg.nl http://www.ntg.nl/mailman/listinfo/ntg-context
Re: [NTG-context] \startMPpage ... \stopMPpage
David Arnold wrote:
% \startMPpage
% \includeMPgraphic{EnglishRule}
% \stopMPpage
you can only include a simple usable graphic, defined with
\startuseMPgraphic; unique mp graphics are more tricky and involve
(once we have lua in tex we can find ways around this since then we can
(1) implement some of the unique housekeeping in lua and (2) fool tex
with hidden expansions)
Hans
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Re: [NTG-context] more font packages
Taco Hoekwater wrote: Henning Hraban Ramm wrote: Here's a present for you: http://www.fiee.net/texnique/?menu=0-1-4 I made some more font packages and also published some symbol packages (Apostrophe HardTalk, FontShop FFDingbests, Klein RudolfsBats and my own Unitas2). The additional files of the newer packages are finally in the right places (docs/fonts/... and tex/context/third) I'll think about a better structure of the page including preview pictures... Wow! I am going to create a texmf-hraban tree. :-) nice indeed! suggestion: put the typescripts under tex/context/third/ (taco, do we need a subdir there ... maybe just third/typescripts ?) that way context (tex) can find those tex files Hans ___ ntg-context mailing list ntg-context@ntg.nl http://www.ntg.nl/mailman/listinfo/ntg-context
Re: [NTG-context] more font packages
Taco Hoekwater wrote: Henning Hraban Ramm wrote: Here's a present for you: http://www.fiee.net/texnique/?menu=0-1-4 I made some more font packages and also published some symbol packages (Apostrophe HardTalk, FontShop FFDingbests, Klein RudolfsBats and my own Unitas2). The additional files of the newer packages are finally in the right places (docs/fonts/... and tex/context/third) I'll think about a better structure of the page including preview pictures... in the (nice) sample tables in convington \tx comes out as tx which indicates an encoding problem (i see that you use qx so maybe there is something wrong with the vector?) Hans ___ ntg-context mailing list ntg-context@ntg.nl http://www.ntg.nl/mailman/listinfo/ntg-context
Re: [NTG-context] description question (bis)
On 12/27/05, Hans Hagen [EMAIL PROTECTED] wrote:
ugly but working:
\setupcolors[state=start]
\definedescription
[Desc]
[location=top,
hang=3,
headstyle=bold,
headcolor=red,
command=\hskip-2cm,
margin=2cm]
\starttext
\input tufte \startDesc {test} \input tufte \stopDesc
\stoptext
wow, your solution works well :)
Thank you so much,
Regards,
--
http://vnoss.org
Vietnamese Open Source Software Community
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Re: [NTG-context] more font packages
Hans Hagen wrote: Wow! I am going to create a texmf-hraban tree. :-) nice indeed! I settled for texmf-fonts, actually. I have a bunch of other (commercial) fonts as well, so it made sense to group those together, apart from my private macro files. suggestion: put the typescripts under tex/context/third/ (taco, do we need a subdir there ... maybe just third/typescripts ?) How about tex/context/third/hraban ? :-) I believe an extra level is a good idea, but I have no strong feelings about naming conventions below third/. The chance of collisions is (very) small as it stands, so I believe there is no need to be prescriptive beyond that extra level. Cheers, Taco ___ ntg-context mailing list ntg-context@ntg.nl http://www.ntg.nl/mailman/listinfo/ntg-context
Re: [NTG-context] description question (bis)
On 12/27/05, VnPenguin [EMAIL PROTECTED] wrote:
On 12/27/05, Hans Hagen [EMAIL PROTECTED] wrote:
ugly but working:
\setupcolors[state=start]
\definedescription
[Desc]
[location=top,
hang=3,
headstyle=bold,
headcolor=red,
command=\hskip-2cm,
margin=2cm]
\starttext
\input tufte \startDesc {test} \input tufte \stopDesc
\stoptext
wow, your solution works well :)
Thank you so much,
Regards,
Just added this solution to wiki :-)
http://wiki.contextgarden.net/Description
Thanks,
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[NTG-context] function machine
Hans, Taco, et al,
This is getting pretty close to the limit of my expertise. The good
stuff of it is stolen from Metafun and mp-func.mp.
Because of the way I handle clipping the path,
p:=p cutbefore cpath;
p:=reverse p;
p:=p cutbefore cpath;
this will only work on functions (like lines, quadratics, and
polynomials, maybe sinusoids) that both enter and leave the region
inside the clipping path.
I proceed the in the order I do because I want the axes layered atop
the grid and the functions layered atop the grid and axes.
It's actually a pretty cool routine for teachers as it almost works
like a TI83 calculator. Just change xmin, xmax, xscl, ymin, ymax, and
yscl to determine domain and range and tick marks, then adjust the
number of points for a smooth graph, then set the width of the figure
you want. There's an option to label the axes differently from the
usual x and y, if needed.
Finally, thanks to Hans' expertise, the drawfcn routine allows for a
parametric definition of the intended curve.
All you need to do to make another graphic is copy and paste
everything between \startMPpage ... \stopMPpage and adjust the
parameters described above. Now you have a second plot.
You can run texexec with
texexec filename
or
texexec --page=2 filename
if you only want your second graphic. When I compile all, I write an
xml database file (very cool) and use
\usemodule[fig-base]
\usefigurebase[figures/figlibSection1]
in my document. Very cool working arrangement.
Here's some lines from my xml file:
figurelibrary language=en
description
organizationCollege of the Redwoods Mathematics Department/
organization
projectIntermediate Algebra Text/project
productChapter 1/product
commentFigures for Section 1/comment
/description
figure
filesection1figs-mpgraph.1/file
labelyeqx2/label
copyrightCollege of the Redwoods Mathematics Department/copyright
comment/comment
/figure
figure
filesection1figs-mpgraph.2/file
labelyeq2x2/label
copyrightCollege of the Redwoods Mathematics Department/copyright
comment/comment
/figure
...
/figurelibrary
And here's my function machine. I'd love to hear any suggestions for
improvement. Thanks to all who have helped me the last week (Taco has
been especially patient). I've learned a lot.
%output=pdf
\setupcolors[state=start]
\definecolor[gridlines][s=0.7]
\startMPinclusions
color gridlines; gridlines:=\MPcolor{gridlines};
vardef create_grid (expr l,r,h,b,t,v,wid,ht)=
save ux, uy; numeric ux, uy;
(r-l)*ux=wid; (t-b)*uy=ht;
for k=b step v until t:
draw (l*ux,k*uy)--(r*ux,k*uy) withcolor \MPcolor{gridlines};
endfor;
for k=l step h until r:
draw (k*ux,b*uy)--(k*ux,t*uy) withcolor \MPcolor{gridlines};
endfor;
enddef;
vardef create_axes (expr l,r,b,t,wid,ht) (text xlbl,ylbl) =
save ux, uy; numeric ux, uy;
(r-l)*ux=wid; (t-b)*uy=ht;
textextoffset:=3pt;
drawdblarrow (1.05*l*ux,0)--(1.05*r*ux,0);
draw textext.rt(xlbl) shifted (1.05*r*ux,0);
draw textext.bot(decimal r) shifted (r*ux,0);
drawdblarrow (0,1.05*b*uy)--(0,1.05*t*uy);
draw textext.top(ylbl) shifted (0,1.05*t*uy);
draw textext.lft(decimal t) shifted (0,t*uy);
enddef;
vardef drawfcn (expr ind,dep,l,r,b,t,wid,ht,n) text txt =
save x, dx, ux, uy; numeric x, dx, ux, uy;
dx:=(r-l)/n;
(r-l)*ux=wid; (t-b)*uy=ht;
save cpath; path cpath; cpath:=(l,b)--(r,b)--(r,t)--(l,t)--cycle;
save p; path p; hide (x:=l;) p:=(scantokens(ind),scantokens(dep));
for xx:=l step dx until r:
hide (x:=xx;) p:=p--(scantokens(ind),scantokens(dep));
endfor;
hide(x:=r;) p:=p--(scantokens(ind),scantokens(dep));
p:=p cutbefore cpath;
p:=reverse p;
p:=p cutbefore cpath;
p:=p xyscaled (ux,uy);
drawdblarrow p txt;
enddef;
\stopMPinclusions
\starttext
\startMPpage
%initialize window parameters
numeric xmin, xmax, xscl, ymin, ymax, yscl;
xmin:=-10;
xmax:=10;
xscl:=1;
ymin:=-10;
ymax:=10;
yscl:=1;
%initialize number of points
numeric num_points;
num_points:=100;
%initialize dimensions of image
numeric width, height;
width=3in;
height=3in;
%create the grid
create_grid(xmin,xmax,xscl,ymin,ymax,yscl,width,height);
%create the axes
create_axes(xmin,xmax,ymin,ymax,width,height)($x$)($y$);
%draw the function
%drawf(xmin,xmax,ymin,ymax,width,height,num_points);
drawfcn(x,x*x,xmin,xmax,ymin,ymax,width,height,100) ;
%to add another function with extra formatting, try:
% drawfcn(x,(x+1)*(x+1),xmin,xmax,ymin,ymax,width,height,100)
% withpen pencircle scaled 2pt dashed evenly withcolor red;
\stopMPpage
\stoptext
%%% Local Variables:
%%% mode: conTeXt-en
%%% End:
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