http://blog.gmane.org/gmane.comp.tex.metapost hourly 1 1901-01-01T00:00+00:00 http://gmane.org/img/gmane-25t.png http://gmane.org http://comments.gmane.org/gmane.comp.tex.metapost/2377 <pre>I've read Knuth's explanation of how "intersectiontimes" works when two paths intersect in multiple points (in Chapter 14 of the METAFONTbook), but I cannot seem to figure out how to FORCE lexicographic ordering of the intersection times. For example, if paths p and q intersect in multiple points, I would like to, somehow, have (s,whatever) = q intersectiontimes p; return the "first" (i.e., smallest "time") for q in which q and p intersect. This is illustrated in the code below (which generates the attached figure). Notice that q intersects p at times (and these times are for q) 0.07144, 0.35716, 0.64287, and 0.92859 which correspond to the points (1,-5), (1,-3), (1,-1) and (1,1), respectively. However, the command (s,whatever) = q intersectiontimes p; returns the last (namely 0.92859) time for q instead of the first (namely 0.07144) time for the intersection. Is there a way to FORCE "q intersectiontimes p" to always return the smallest time for q? Thanks in advance, Troy -- path p,q,r; p:=(0,0)</pre> Troy Henderson 2013-04-24T09:27:27 http://comments.gmane.org/gmane.comp.tex.metapost/2373 <pre>Does MetaPost have a clever way of determining whether a point z is "inside" a closed path (cycle) p? Troy Henderson -- http://tug.org/metapost/</pre> Troy Henderson 2013-04-23T01:10:24 http://comments.gmane.org/gmane.comp.tex.metapost/2371 <pre>Is there a web repository dedicated to Metapost macros/packages? For example, I need to draw dimensions (a CAD feature): I have to write some macro myself or I am reinventing the wheel? And if I write something worth, how can I share it so to give it good web visibility and let others improve it? Thanks. Mario -- http://tug.org/metapost/ </pre> mv968 2013-04-07T23:14:12 http://comments.gmane.org/gmane.comp.tex.metapost/2369 <pre>Sorry newbie here. What about a "scaledaround" command? That is scaling with the possibility of choosing the origin of scaling. I think it would be useful. Thanks. Mario -- http://tug.org/metapost/ </pre> mv968 2013-04-07T10:08:56 http://comments.gmane.org/gmane.comp.tex.metapost/2368 <pre> I am happy to announce a new release of MetaPost: ---------------------------------------------------------------------- MetaPost 1.801 ---------------------------------------------------------------------- This is a bugfix release for 1.800. The win32 binary as well as a source archive can be downloaded immediately from the files section at https://foundry.supelec.fr/projects/metapost/ If you want to build MetaPost yourself, you can also do an anonymous subversion checkout: $ svn checkout --username anonsvn https://foundry.supelec.fr/svn/metapost/tags/1.801 The password is anonsvn ---------------------------------------------------------------------- What is new in MetaPost version 1.801: ---------------------------------------------------------------------- * fixed an off-by-one error in the SVG output that prevented the last font's glyphs from actually being output to the svg file under prologues:=3; * fixed a bug in bbox calculations in that caused the max y to be set based on </pre> Taco Hoekwater 2013-04-05T09:57:14 http://comments.gmane.org/gmane.comp.tex.metapost/2356 <pre>The addition of lua to TeX and Metafont has been an interesting development. This snippet from the ACM TechNews Bulletin today shows that others have recognized the value of lua as well, even if not directly for font design and typesetting: ------------------------------------------------------------------------------- - Nelson H. F. Beebe Tel: +1 801 581 5254 - - University of Utah FAX: +1 801 581 4148 - - Department of Mathematics, 110 LCB Internet e-mail: beebe&lt; at &gt;math.utah.edu - - 155 S 1400 E RM 233 beebe&lt; at &gt;acm.org beebe&lt; at &gt;computer.org - - Salt Lake City, UT 84112-0090, USA URL: http://www.math.utah.edu/~beebe/ - ------------------------------------------------------------------------------- -- http://tug.org/metapost/ </pre> Nelson H. F. Beebe 2013-03-20T17:57:38 http://comments.gmane.org/gmane.comp.tex.metapost/2353 <pre>Hello, I am interested in Metapost's ability to solve equations. Consider this code "second.mp": a/b=(a+3)/(b+8); a=-3; show a,b; When I run the code, however I get mistake(s): mpost second.mp This is MetaPost, version 1.504 (kpathsea version 6.0.1) (mpost.mp (c:/texlive/2011/texmf-dist/metapost/base/plain.mp Preloading the plain mem file, version 1.004)) (./second.mp &gt;&gt; a &gt;&gt; b ! Not implemented: (unknown numeric)/(unknown numeric). &lt;to be read again&gt; = l.1 a/b= (a+3)/(b+8); ? I would be grateful if someone would let me know: (a) what I am doing wrong with this code? (b) Say if the code is fixed and run well, what Metapost command to put after show a,b; so that Metapost exits normally because it seems that I get a * if the code runs well and then Metapost is still awaiting for some other command(s)? Thanks a lot... Best Regards, Y.Calleecharan -- http://tug.org/metapost/ </pre> Yogeshwarsing Calleecharan 2013-03-20T07:55:05 http://comments.gmane.org/gmane.comp.tex.metapost/2338 <pre>Hi, I am experiencing strange effects when using btex..etex with a certain document style: the bounding box is not determined correctly. For debugging purposes I would therefore like to obtain an mpxerr.tex file even though not tex-error occurs. Is that possible? Thanks for any help! Best, Stefan -- http://tug.org/metapost/ </pre> Stefan Witzel 2013-03-12T16:40:13 http://comments.gmane.org/gmane.comp.tex.metapost/2336 <pre> Hello, again, MS: To derail the discussion further, we would like to come up with a proposal (it sprouts in our heads quite a long time) of extending the functionality of Metapost by an `allsuffixes' operator. Let's explain the idea on a trivial example. Assume that we have declared or used variables a.a, a.a.b, a.a.b.c; then the statement forsuffixes $:=allsuffixes a: would succesively assign to $ the suffixes a, a.b, a.b.c, and the statement forsuffixes $:=allsuffixes a.a: would succesively assign to $ the suffixes b, b.c. Perhaps the operation of the undefining of a variable (i.e., deleting it, not to be confused with the assigning of an undefined value to a variable) should consequently accompany such and extension. The generated sequence of suffixes could be perhaps lexicographically ordered. Note that such an operation actually is ("implicitly") implemented in Metafont, and, thus, in Metapost. The primitive `showvariable' does the job, with lexicographic sorting. (There is not, however, </pre> Boguslaw Jackowski 2013-03-02T21:09:39 http://comments.gmane.org/gmane.comp.tex.metapost/2333 <pre> Dear Taco, very many thanks for releasing the version 1.790 of MetaPost. We have tested it with one of our fonts. The resaults are nearly good. :) In a `standard' math mode (low precision) we were able to compile the whole fonts without problems, the results being identical to the results produced by mpost 1.5*. We have four remarks: a serious one and three minor ones. Let's start with tha latter ones. 1. Minor remarks: (a) mpost 1.790 is noticeably slower under Windows than the previous, 1.503, version; under Linux i64, there is no measurable difference (b) even the most trivial program invoked without mem file name given explicitly loops generating (infinitely?) many of parethesises: This is MetaPost, version 1.790 (kpathsea version 6.1.1dev) 1 MAR 2013 14:47 **zz.mp (plain.mp Preloading the plain mem file, version 0.63))))))))... Passing on the command line parameter --mem=mpost cures the problem (note that --mem=mpost.mp doesn't) </pre> Boguslaw Jackowski 2013-03-01T14:18:26 http://comments.gmane.org/gmane.comp.tex.metapost/2320 <pre>I have a METAPOST program that works fine with mpost, but fails when I try to run it inline in ConTeXt. In order to debug it, I would like to see the usual METAPOST logging and/or to use the METAPOST "message" primitive. However, whenever I add "loggingall;" or a message statement to my ConTeXt file, I encounter errors like this %------ metapost &gt; initializing instance 'metafun' using format 'metafun' metapost &gt; loading 'metafun': D:/texlive/2012/texmf-dist/metapost/context/base/metafun.mpiv ! terminal: %------- What is the appropriate way to debug problems with inline METAPOST code in ConTeXt? My example file is: %------- \loggingall \starttext \framed{Hello world.} This is a simple_test. \startMPpage loggingall; fill fullcircle scaled 1in withcolor blue; label.top(btex This is a test. etex, origin); \stopMPpage \stoptext %------- I am using TeXLive 2012 on Windows. I apologize for any vagueness in this question. I'm not really sure how the various pieces fit together. Thanks for you</pre> Colin Fraizer 2013-02-18T12:57:42 http://comments.gmane.org/gmane.comp.tex.metapost/2316 <pre>Hi, When I metapost the following program, I get a segmentation fault: %%%%%%%%%%%%%%%% string a; %a = "a";% works fine. "a" = a; % segmentation fault. end %%%%%%%%%%%%%%%% typing: $ mpost --version gives: %%%%%%%%%% MetaPost 1.504 The MetaPost source code in the public domain. MetaPost also uses code available under the GNU Lesser General Public License (version 3 or later); therefore MetaPost executables are covered by the LGPL. There is NO warranty. For more information about these matters, see the file COPYING.LESSER or &lt;http://gnu.org/licenses/lgpl.html&gt;. Original author of MetaPost: John Hobby. Author of the CWEB MetaPost: Taco Hoekwater. %%%%%%%%%%% I'm using Ubuntu 12.04.1 on a 32-bit machine. I'm happy to supply further details if needed. Yours, Ohad. -- http://tug.org/metapost/ </pre> Ohad Kammar 2013-01-10T14:51:41 http://comments.gmane.org/gmane.comp.tex.metapost/2310 <pre>Hello, In the Metafun manual, it is said that its is enough to input the "mp-tool" file, or to enter "input metafun;" to use most of the metafun macros with the plain format of MetaPost. It does not work with the Metapost or Metafun version included in TeXLive 2012 (I use MacTeX 2012, with Mac OS X 6.8). Each time I include the line input mp-tool; in a MetaPost file, it triggers this error message: ! I can't open file `mp-tool'. l.4 input mp-tool ; Please type another input file name: file name: Note that this bug has already been reported here: http://tex.stackexchange.com/questions/68750/metapost-mptopdf-complains-cant-open-file-mp-tool?rq=1 The solution is apparently to enter "input mp-tool.mpii" instead of "input mp-tool", but as far as I know it is not documented anywhere. There is something weirder: If I try "input metafun" instead of "input mp-tool", as the Metafun manual also suggests, I obtain this strange error message: ! Redundant equation. &lt;to be read again&gt; </pre> Franck Pastor 2013-01-03T20:32:49 http://comments.gmane.org/gmane.comp.tex.metapost/2299 <pre>I would like to write something like for i = 1 upto 10 label( btex $A_i$ etex, z[i]) endfor so that I get A_0 for z0, A_1 for z1,... Is it possible ? -- http://tug.org/metapost/ </pre> Ranousse 2012-11-23T23:16:04 http://comments.gmane.org/gmane.comp.tex.metapost/2298 <pre>LinkedIn ------------ J'aimerais vous inviter à rejoindre mon réseau professionnel en ligne, sur le site LinkedIn. Nizar Nizar Fakhfakh -- Région de Paris , France Veuillez confirmer que vous connaissez Nizar Fakhfakh : https://www.linkedin.com/e/-dy5li7-h9ii0xoo-2w/isd/9583120715/v61ROR1P/?hs=false&amp;tok=2E5UbaBytR3Rw1 -- Vous recevez des invitations à vous connecter par e-mail. Cliquez ici si vous ne souhaitez plus recevoir ces e-mails : http://www.linkedin.com/e/-dy5li7-h9ii0xoo-2w/zN3QFw3n3ah2b-UpbeJc4ZGvIUh/goo/metapost%40tug%2Eorg/20061/I3203019151_1/?hs=false&amp;tok=0oELrFrbNR3Rw1 (c) 2012 LinkedIn Corporation. 2029 Stierlin Ct, Mountain View, CA 94043, USA. -- http://tug.org/metapost/</pre> Nizar Fakhfakh 2012-11-14T13:41:38 http://comments.gmane.org/gmane.comp.tex.metapost/2297 <pre>LinkedIn ------------ J'aimerais vous inviter à rejoindre mon réseau professionnel en ligne, sur le site LinkedIn. Nizar Nizar Fakhfakh -- Région de Paris , France Veuillez confirmer que vous connaissez Nizar Fakhfakh : https://www.linkedin.com/e/-dy5li7-h9ii0gqp-6n/isd/9583120715/v61ROR1P/?hs=false&amp;tok=2E5UbaBytR3Rw1 -- Vous recevez des invitations à vous connecter par e-mail. Cliquez ici si vous ne souhaitez plus recevoir ces e-mails : http://www.linkedin.com/e/-dy5li7-h9ii0gqp-6n/zN3QFw3n3ah2b-UpbeJc4ZGvIUh/goo/metapost%40tug%2Eorg/20061/I3203016685_1/?hs=false&amp;tok=2WEic5FlVR3Rw1 (c) 2012 LinkedIn Corporation. 2029 Stierlin Ct, Mountain View, CA 94043, USA. -- http://tug.org/metapost/</pre> Nizar Fakhfakh 2012-11-14T13:41:16 http://comments.gmane.org/gmane.comp.tex.metapost/2269 <pre>Stupid question, probably …   I need some C code to generate Bezier curves from Metafont source code. Ideally, I'd like to have a C/C++ function with the following specifications:   Input: an array of text strings (the lines in the MetaFont program) Output: an array of Bezier curves representing the centerlines of the "pen" strokes (plus some information about the pen used for each stroke).   So, internally, this code would parse the MetaFont source, solve little systems of linear equations, and calculate the control points of the Bezier curves.   Code like this must exist in both MetaFont and MetaPost, but I'm having trouble finding it.   I read mplibapi.tex and did some other hunting around, and I learned that I should probably be looking at mplib.c and mplib.h. But I can’t find these at foundry.supelec.fr/gf/project/metapost   So, my questions are: (1) Are mplib.c and mplib.h in fact the best starting points ? (2) If they are, where can I find them ? (3) If not, what are better options ?   Tha</pre> xiolyxioly 2012-10-21T13:50:29 http://comments.gmane.org/gmane.comp.tex.metapost/2265 <pre>Hi everybody, I am having a problem with Metafun. I am running mac os 10.7.5 and have recently installed TeXLive 2012. If I run mptopdf on the following test.mp : I get If I suppress the \input metafun; line, I get With TeXLive 2011, everything works fine. Any idea on this issue? Thanks a lot for your help. Fabien -- http://tug.org/metapost/</pre> Fabien Vignes-Tourneret 2012-10-16T21:10:45 http://comments.gmane.org/gmane.comp.tex.metapost/2263 <pre>I want to write a label with a space in it label("my label", position); Instead of a space a kind of minus caracter is written. Is there a solution to my problem without using btex my label etex ? -- http://tug.org/metapost/ </pre> Ranousse 2012-10-01T15:30:06 http://comments.gmane.org/gmane.comp.tex.metapost/2260 <pre>Karl mentioned this might be a better plase to post this than the texlive list -------- Original Message -------- Subject: [tex-live] Old metapost label issue Date: Mon, 6 Aug 2012 11:52:33 +0200 From: Lars Madsen &lt;daleif&lt; at &gt;imf.au.dk&gt; To: TeX Live &lt;tex-live&lt; at &gt;tug.org&gt; Hi TL's Back in 2010, I described a labelling problem in metapost regarding relative paths Here is Tacos answer http://www.tug.org/pipermail/tex-live/2010-February/024806.html Does anyone know the status of this? The problem still exists, but I'm not sure if this should be a bug or a feature due to security? </pre> Lars Madsen 2012-09-26T14:31:50 http://comments.gmane.org/gmane.comp.tex.metapost/2252 <pre>As discussed here a few weeks ago, METATYPE1's pen-stroking macro, because of the nature of the problem it's solving, can at best produce an approximation of the theoretical ideal envelope. On some kinds of input, the approximation isn't very good; one particular area of difficulty seems to be when the path being stroked has a segment with tight but smooth curvature. The ideal envelope in such a case would include a sharp corner even though no sharp corner exists in the input; and pen_stroke() will sometimes produce a deep indentation in the envelope instead of a sharp corner. The visual effect looks a little bit like the "ink traps" that are sometimes deliberately included in traditional metal type designs intended for printing on newsprint, but the ones from pen_stroke are uncontrolled and usually undesirable. I've made some progress on a solution in the context of my Tsukurimashou project: code can, with reasonable success, automatically detect path segments likely to cause this problem and introduce</pre> mskala< at >ansuz.sooke.bc.ca 2012-09-19T16:29:25 Search the mailing list at Gmane query http://search.gmane.org/?group=$group=gmane.comp.tex.metapost