This tag marks questions about the basic layer of the TikZ/PGF graphic language stack. For questions about higher layers use the tikz-pgf tag.

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3
votes
1answer
155 views

Using pgfmultipartnode and its parameters (in pgflibraryshapes.callouts.code.tex)

I want to slightly modify pgflibraryshapes.callouts.code.tex to create a small tikz callout package that solves Tikz callout: positioning start of pointer. I think I have located the single relevant ...
5
votes
1answer
124 views

How to combine Hobby paths with PGF Basic Layer commands?

I need to combine paths that are created via the hobby package with standard pgf path elements, like arcs. Within the Frontend Layer this is easily done, e.g. \documentclass{standalone} ...
41
votes
1answer
544 views

Given a PS interpreter, can pstricks be converted to pgf?

When producing pdf directly, PostScript code cannot be used, which means that pstricks macros do not work. Now, it is still possible to include pstricks code using external tools (running LaTeX on ...
12
votes
4answers
483 views

Tikz shape similar to rectangle with selective drawing of borders

I am looking for a tikz shape similar to the rectangle shape, but with the possibility of drawing individual borders selectively. Also when used with rounded corners, the corners missing a border ...
3
votes
0answers
92 views

How to define a pgf curve with points instead of controls?

The syntax to produce a Bézier curve in pgf is \pgfpathcurveto{first control point}{second control point}{target} This defines the curvature by control points. Considering the degrees of freedom ...
0
votes
0answers
31 views

How to declare new path commands in TikZ? [duplicate]

The TikZ Manual, section 59.5 and some very good questions on this site explain how to declare new shapes for TikZ nodes with \pgfdeclareshape{myshape} ... to later use them with \node[shape=myshape] ...
4
votes
1answer
115 views

Is this a bug in pgf ? pgfpatharcto

I made a simple and shortest example. I create a simple path containing an arc. But if I compute that path before the begin document, I obtain garbage, whereas it works as expected after begin ...
13
votes
1answer
204 views

What's the difference between \path and \draw in Tikz?

The question is in the title: What is the difference between the commands \path and \draw in Tikz? The PGF and TikZ manual by Till Tantau tells me (on page 26 of the current version) that “\draw is ...
3
votes
1answer
82 views

Renaming anchors in predefined shapes

I am drawing several dozen diagrams with TikZ that will be using equilateral triangles. My current setup is using the regular polygon construction. The anchor names corner 1, corner 2, and corner 3 ...
6
votes
1answer
129 views

Tikz, how to a simple new shape

I want to make a new shape for switch in my network diagram. It's really simple based on circle. I got this manually by \def \drawswitch { \node[circle,draw] (circle){}; \draw (circle.south ...
8
votes
1answer
175 views

Customized template for beamer

I'm a convinced beamer user, but in my institute they ask me to follow some template (of course prepared with PowerPoint). I would like to mimic it as much as possible with beamer, because otherwise ...
2
votes
0answers
67 views

different coordinate frames for anchors and backgroundpath in node shapes?

I want to create a triangle shape for flow diagrams, so far I succeeded but the anchors I have defined are badly placed. This seems to be wired as I have just copied and pasted the code from the ...
3
votes
1answer
165 views

tick mark separation

My graphs have two ticks on the x-axis. I'd like to have 3 graphs across a page and include y-axis labels. Right now that wont fit. Is it possible to move the x-tick marks closer together so the ...
5
votes
0answers
112 views

TikZ: compilation time performance of decorations

I want to produce a picture that contains lots of two-part cylinder-kind shapes (maybe about 200) along certain paths. Here is an example of such a shape: \documentclass{standalone} ...
5
votes
1answer
154 views

Custom T shape in TikZ

I would to define a new "T" shape (i.e. the red and green shapes in the following image) so that I can then draw with TikZ the diagram below. Unfortunately I cannot figure out how to do. To be ...
5
votes
2answers
1k views

How to use pgf-math inside an argument?

I response to xport's recent questions, I tried to do the following \usepackage{pgf} [...] \rule{\pgfmathdivide{4}{3}\pgfmathresult mm}{5mm} Unfortunately, this fails with the following error ...
10
votes
1answer
867 views

Using patterns inside pgf shapes

Is it possible to (correctly) use patterns inside a pgf shape definition ? For example, I try to define a shape as a rectangle filled with a pattern, like this \usetikzlibrary{patterns} ...
6
votes
2answers
164 views

How can I define a calculation of a dimension that I can reuse in a \savedanchor declaration?

In the following MWE, I declare a new shape myshape. In several instances, I plan to use a dimension that is calculated from different pgf keys (\my@width). One of these instances includes the ...
5
votes
2answers
167 views

Why does pgf not understand relative dimensions (ex, em, sp)?

The below MWE draws a number of rectangles using low-level pgf commands, each specified with a different unit that Latex understands. However, pgf doesn't seem to be able to determine the relative ...
11
votes
2answers
1k views

Custom shapes in TikZ

I am trying to define a new shape in TikZ following the instructions of section 75.5 of the manual. Reading the question Drawing mechanical systems in LaTeX, I started to think that a "mechanical" ...
7
votes
2answers
2k views

Using form-only patterns with variable: possible TikZ bug

While trying to use a variable pattern in TikZ with varying pattern color, I found that it did not seem to work. Here's a minimal working example: \documentclass[tikz]{standalone} ...
6
votes
1answer
286 views

Programming with pgf arrays : how to create an array?

I am trying to do some automatic drawing in tikz. The point is I want to be able to provide the minimal quantity of information to my macro, and still have it work. More precisely (but without ...
2
votes
1answer
126 views

Use result from pgfmath with xifthen

I try to use the results of pgfmath calculations with cnttest from xifthen, but it fails: \documentclass{article} \usepackage{pgf,xifthen} \begin{document} \pgfmathparse{42+77}% ...
28
votes
6answers
8k views

What is the easiest way to draw 3D cube with TikZ?

I'm trying to find the easiest way to draw a 3D cube (it's for my UML diagram) with TikZ. Could you please give an example? Like this:
9
votes
2answers
128 views

Identification of an empty macro from pgfplots using \ifx

Consider following MWE and the output thereafter. I have defined an empty macro and used \ifx to identify it as such. However, when an empty macro is received from \pgfkeysgetvalue, \ifx doesn't work. ...
6
votes
1answer
167 views

TikZ: posticipate execution of type /.code key

I'm trying to create some TikZ keys which allows to easily draw distributed loads on a mechanical structure (or truss). The code I wrote at the moment is: \documentclass[a4paper]{article} ...
5
votes
2answers
813 views

creating a fifo symbol with pgfdeclareshape

I'm compiling with: pdfTeX, Version 3.1415926-2.3-1.40.12 (MiKTeX 2.9 64-bit) (preloaded format=pdflatex 2011.7.8) pgf 2008/01/15 v2.10 (rcs-revision 1.12) tikz 2010/10/13 v2.10 (rcs-revision 1.76) ...
7
votes
1answer
120 views

Why do my “to path” arrowheads disappear when I upgrade to PGF 2.10?

Since I upgraded to PGF 2.10, some of my arrows drawn with to don't look right anymore. For instance, they are missing arrow-heads, and some other styles I applied to them have also disappeared. For ...
6
votes
2answers
240 views

\dimexpr gives 0pt

Why on earth does the following expression give me 0.0pt? \edef\x{\the\dimexpr 3ex-1ex\relax} I assume ex is a LaTeX unit, as it isn't in the TeXbook. Please where is it defined in the kernel? ...
6
votes
2answers
240 views

How to share selected options between different nodes in TikZ?

(I didn't find a better title for the question. Suggestions are welcomed.) I have created some new shapes in TikZ and I would like to put one of them below another one when a certain key is passed to ...
1
vote
1answer
247 views

pgffor map elements

pgffor's foreach can take an "array" of elements. I need to map those elements using another array(a lookup table) because I need both the elements and there mapped value. e.g., suppose I an doing ...
0
votes
0answers
21 views

TeXnicCenter won't build when using pgf package [duplicate]

Possible Duplicate: How can I fix the error “GUI framework cannot be initialized” with TeXnicCenter and MiKTeX? I recently installed the "pgf" package via the MiKTeX package ...
3
votes
1answer
107 views

pgfparser module and blank spaces

After the question Macro for a code translator, I followed the advice of polgab and used the pgf parser module. I was very disappointed when I reached the point of trying to parse a blank space. I ...
1
vote
1answer
1k views

Acrobat on Windows doesn't recognize the images from pdflatex pdfs generated on Ubuntu [closed]

I'm dealing with an annoying behaviour of my pdf file. It seems that Acrobat or Reader doesn't recognize the images. I work with texlive on Ubuntu 11.04 and I compile the source file with pdftex in ...
10
votes
2answers
266 views

PGF's \foreach with weird list

A claim is made at pgffor: Special treatment for last item in \foreach-list that the following works. But I can't get it to work. What have I missed? \newcount\nra \foreach[count=\nx]\x in ...
1
vote
1answer
4k views

Installing pgfcore.sty

There is a problem with installing pgfcore.sty file for the beamer package. This file can not be installed from the internet (TeX says file not found) and when I plug this file manually into the ...
3
votes
1answer
216 views

PGF loop variables in string comparisons

In a bigger context, I need to check whether an integer parameter is contained in a set of numbers. I decided to encode sets as strings; elements are separated by !. I don't know whether this is the ...
2
votes
2answers
125 views

pgfkeys 'filtering state'

Please does anyone know the 'filtering state' referred to in the following code from the pgfkeys-core file? \def\pgfkeys@install@filter@and@invoke#1{% \ifpgfkeysfilteringisactive ...
14
votes
1answer
793 views

Reuse of soft path in fading declaration? Transformation of fadings?

This question led to a new package: pgf-blur I have an idea for a fairly realistic-looking fading drop shadow, that works with almost arbitrary node shapes. This would also give a generic ...
3
votes
1answer
222 views

Insert TeX code from another Beamer presentation (which uses PGF) into Lyx while composing new Beamer presentation

I'm struggling to insert the TeX code for an older Beamer presentation into one that I'm currently putting together using Lyx. The problem seems to be that Lyx doesn't recognize the package import: ...
20
votes
5answers
563 views

Parsing text letter by letter

The PGF package has a module named parser that can parse a block of text from an initial state to a final state letter by letter. For example, the following MWE will parse a given text and count the ...
4
votes
1answer
231 views

How to get the tikz/font pgfkey value and pass is to \pgfnode command

Let's say that I'm writing a decoration where I use the \pgfnode command in it. It works well but if I change the pgfkey TikZ/font to any dimension, it is not passed to the nodes in the decoration. ...
3
votes
1answer
214 views

Multiple listings using range markers and PGF's \foreach

I've been trying to include multiple code snippets from a unique source file by using listings's range markers (named lines) and PGF's \foreach macro: \foreach \x in {1,2,...,8} { ...
8
votes
2answers
537 views

Making a PGF shape

I'm having terrible trouble trying to declare a new shape with PGF and would appreciate help. What I would like to achieve is: where the lighter grey boxes are \nodepart anchors, and the base shape ...
18
votes
1answer
2k views

What is the advantage of using \includegraphics instead of \pgfimage for ordinary image inclusion?

The TikZ & PGF manual says that ‘LaTeX’s \includegraphics is designed better than pgf’s image mechanism’ and that ‘LaTeX users are encouraged to use \includegraphics to include images.’ But is ...
6
votes
1answer
399 views

Tikz: redefinition of patterns

I save my TikZ figures in separate files containing all the necessary definitions, so it's easy to reuse them. In some cases I defined a new pattern, e.g. by \pgfdeclarepatternformonly{wide ...
6
votes
2answers
596 views

How to raise a generic curve. Problem with \pgfdeclaredecoration

The goal I want to obtain is to have a parallel curve to a generic curve defined in a \draw command trough TikZ. To achieve it, I used the TikZ decorations library and the command ...
2
votes
1answer
222 views

Including a djVu files with pgf/pdfpages package

Is it possible to manipulate .djVu files with pgf and/or pdfpage packages; and produce a pdf?
8
votes
3answers
317 views

How to learn to create General (Functional) Shadings wifth pgf?

In the section called General (Functional) Shadings in the PGF/TikZ manual, there is an "explanation" of the command to create a general functional shading. The author of this section assumes that ...
4
votes
1answer
427 views

How to animate a path or how to draw starting fraction of a complex but linear path?

I would like to reproduce something similar to Animating Protocols but with a compound path and not a straight one. \documentclass{standalone} \usepackage{tikz} \usepackage{animate} ...