Subject: usepackage{tikz} and : conflict? (minimal example)
- msg#00029

Previous Message by Date:

Re: Matrices in TiKZ

On 12/19/06 5:48 AM, "Mark Wibrow" <M.Wibrow@xxxxxxxxx> wrote: > Matthew Leingang wrote: >> But what I'd like to do is have a matrix-like syntax for TiKZ, which would >> interpret & and \\ the same way as in the array or xymatrix environment, >> making each entry a node and giving them names automatically. > > Well, the following LaTeX code works, and shows what could be done, BUT > it's not perfect (some issues involving spaces which you'd see if you > create the matrix outside the \tikzpicture environment i.e. outside a > \nullfont group). Using & and \\ would make things a lot easier, but this > has a 'cleaner' look (in my opinion): Thanks, Mark, for taking a look at this. I'd like to learn more about the mechanics of TeX parsing and examples like these help a lot. It would be even nicer if the entries were positioned based on their size. Rather than having the centers of each entry in a row equidistant, the distance between the right edge of one column and the left edge of the next column is constant. This I think is how the LaTeX matrix environments work. I guess each column keeps track of its widest entry. So \creatematrix would also have to hold all the positioning information as well. The interface I'm thinking about could work like \begin{tikzpicture} \draw (0,0) matrix[delim=b] (foo) { 0 & 2 & 0 \\ 1 & \nodeoptions[draw,circle]{1} & 4 \\ 0 & 100006 & 7 } (foo[1,1].west) -- (foo[1,3].east) (foo[1,1].north) -- (foo[3,1].south); \end{tikzpicture} One of my goals would be that a matrix typeset through this method without extra decoration would look just like the same matrix typeset by $\begin{matrix}...\end{bmatrix}$. That way it would fit most nicely with other matrices in the same document. But now you've given me something to work from. Thanks again! --Matt -- Matthew Leingang Preceptor in Mathematics Harvard University http://www.math.harvard.edu/~leingang/vCard.vcf ------------------------------------------------------------------------- Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT & business topics through brief surveys - and earn cash http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV

Next Message by Date:

Re: usepackage{tikz} and : conflict? (minimal example)

I tried the minimal example with MikTeX 2.5 and PGF 1.10, and got the same error as you. Regards Kjell Magne Fauske On 12/19/06, Erik Quaeghebeur <equaeghe@xxxxxxxxxxxxxx> wrote: > \listfiles > \documentclass{minimal} > \usepackage{tikz} > \begin{document} > $a {\:} b$ % other error results from omitting accolades > \end{document} > \endinput > > This gives an error. The question is: is it a tikz/pgf bug, or is there > something wrong with my TeX installation? If somebody could try the > minimal example and report back, then I'd already know whether it is due > to my installation. I've included some log exerpts below that give > additional information. > ------------------------------------------------------------------------- Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT & business topics through brief surveys - and earn cash http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV

Previous Message by Thread:

Matrices in TiKZ

Hi, I love PGF! For a long time I've tried to use Xy-Pic to do special graphics for my mathematical writings. But mostly I put off writing it up because Xy-Pic has a nearly write-only syntax. Now I love the chance to work out new problems in TiKZ. Something I used to do in Xy-Pic is matrices and commutative diagrams. You could enter a matrix in LaTeX array-style syntax with &'s to separate columns and \\ to separate rows. For instance, to get a matrix with some of the rows or columns crossed out and a circled entry you can do \[ \begin{xy}\xymatrix@R 0pt @C\arraycolsep{ & A & B & C & D \\ 9:00& 0 \POS[];[rrr(-0.1)];[rrr(1.1)]**\dir{-} & 3 & 1 & 0 \POS[];[ddd(-0.1)];[ddd(1.1)]**\dir{-}\\ 10:00& 1 \POS[];[rrr(-0.1)];[rrr(1.1)]**\dir{-} & 0 & 0 & 0 \\ 11:00& 2 & 2 & 2 & 0 \\ 12:00& 3 & 1\POS[];\drop\cir<8pt>{} & 2 & 0} \end{xy} \] The \POS... stuff is what made Xy-Pic hard to use for me. I wanted to do something similar in TiKZ, but the best I came up with was to make every entry its own node by hand. Here is an example of a similar thing (not the same matrix) in TiKZ: \[ \left[ \begin{tikzpicture}[xscale=\matrixxscale,yscale=\matrixyscale,baseline=-0.8c m] \draw (0,0) node (a11) {5} ++ (1,0) node (a12) {0} ++ (1,0) node[draw,circle] (a13) {2} ++ (1,0) node (a14) {2}; \draw (a11) ++ (0,-1) node (a21) {8} ++ (1,0) node (a22) {6} ++ (1,0) node (a23) {0} ++ (1,0) node (a24) {6}; \draw (a21) ++ (0,-1) node (a31) {0} ++ (1,0) node (a32) {5} ++ (1,0) node (a33) {3} ++ (1,0) node (a34) {0}; \draw (a31) ++ (0,-1) node (a41) {7} ++ (1,0) node (a42) {0} ++ (1,0) node (a43) {2} ++ (1,0) node (a44) {2}; \draw (a12.north) -- (a42.south) (a21.west) -- (a24.east) (a31.west) -- (a34.east); \end{tikzpicture} \right] With this I can see pretty easily what's where, what's circled, and where the lines are drawn. And now I know I can use the options x= and y= to get the spacing more like that of a regular matrix. And I can do it all with only one \draw command. But what I'd like to do is have a matrix-like syntax for TiKZ, which would interpret & and \\ the same way as in the array or xymatrix environment, making each entry a node and giving them names automatically. I learn LaTeX by reading source code and I'm willing to try that path to the solution. But I was wondering if I was missing a feature or if someone else had already solved the problem. Thanks, Matthew Leingang -- Matthew Leingang Preceptor in Mathematics Harvard University http://www.math.harvard.edu/~leingang/vCard.vcf ------------------------------------------------------------------------- Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT & business topics through brief surveys - and earn cash http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV

Next Message by Thread:

Re: usepackage{tikz} and : conflict? (minimal example)

I tried the minimal example with MikTeX 2.5 and PGF 1.10, and got the same error as you. Regards Kjell Magne Fauske On 12/19/06, Erik Quaeghebeur <equaeghe@xxxxxxxxxxxxxx> wrote: > \listfiles > \documentclass{minimal} > \usepackage{tikz} > \begin{document} > $a {\:} b$ % other error results from omitting accolades > \end{document} > \endinput > > This gives an error. The question is: is it a tikz/pgf bug, or is there > something wrong with my TeX installation? If somebody could try the > minimal example and report back, then I'd already know whether it is due > to my installation. I've included some log exerpts below that give > additional information. > ------------------------------------------------------------------------- Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT & business topics through brief surveys - and earn cash http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV