TikZ is a higher-level drawing language built on top of the PGF graphics framework. For questions specifically about the PGF layer use {pgf-core} instead. Both tags are possible on the same question. The tag {diagrams} is also compatible with this tag.

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31
votes
3answers
3k views

Parametrize shading in table through TikZ

I wanted to do some shading in a table according to its values. For example, if you see the table below: a b c d a 90 10 0 0 b 0 80 10 10 c 0 0 95 5 d 0 10 5 85 I want to ...
260
votes
2answers
32k views

Create xkcd style diagram in TeX

The unique style of the diagrams at xkcd has an informative but nice hand-drawn touch. I guess they are actually drawn by hand but just recently on our partner site for Mathematica someone asked how ...
31
votes
2answers
7k views

Draw a bivariate normal distribution in TikZ

For a small class I want to draw a bivariate normal distribution and show where the means from the two variables meet in the space. Has anyone done this in TikZ?
44
votes
5answers
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3D helix torus with hidden lines

How can I generate the above image using TikZ (possibly other methods will work if they produce better looking results)? I would like to have a nicely shaded (not so dark image) without gridlines and ...
17
votes
1answer
3k views

Background coloring with overlay specification in algorithm2e + beamer package

I want to highlight some portion of my pseudo codes in my slides during the course of presentation. It's easy in powerpoint and I've made a sample slide: However, I couldn't manage to get a similar ...
13
votes
1answer
3k views

Is it possible to change the color of a single bar when the bar plot is based on symbolic values?

I am beginner in LaTeX, trying to use it for industrial documents. I wonder if there is a way to change the color of only one bar of the plot below, ie "TestDetails", to illustrate it is a local macro ...
39
votes
8answers
10k views

How to draw a torus

Is there an easy way to draw a contour image of torus below with tikz? Or for that matter with any other graphics package.
130
votes
10answers
45k views

List of available TikZ libraries with a short introduction

Quick links: Summary ❧ Intersections library ❧ Arrow tips library ❧ Calc library ❧ Mindmap Library ❧ Shapes library ❧ Paper Folding Library ❧ Chains Library ❧ Shapes library Very often I ...
128
votes
5answers
77k views

Correctly scaling a tikzpicture

I was wondering which is the correct way to scale a tikzpicture. I tried with \begin{tikzpicture}[scale=0.50] but what I obtain is that distances between elements are scaled but not their sizes or ...
89
votes
8answers
7k views

Sieve of Eratosthenes in tikz

I am writing notes for my students under the topic of prime factorization and I needed to illustrate the Sieve of Eratosthenes and this is what I came up with in tikz: \documentclass{article} \...
72
votes
9answers
39k views

How to draw Venn diagrams (especially: complements) in LaTeX

What I am up to is to write some exercises dealing with logical formulas for my students, like: And the students should draw these formulas on Venn diagrams. At the end of the lesson, I really ...
93
votes
3answers
7k views

Fundamental differences : PSTricks, TikZ/PGF and others

OK, since this is a pretty vague and subjective question. I need to set up some borders around the discussion that I intend to benefit from. But before anything, I certainly do NOT want to excite the ...
50
votes
4answers
12k views

3-dimensional histogram in pgfplots

I have a simple 3d histogram which I want to import into pgfplots, e.g. using matlab2tikz or by hand. PGFplots does not offer 3d histograms. Is there an easy way to do this?
68
votes
6answers
4k views

Curve through a sequence of points with Metapost and TikZ

This question led to a new package: hobby I found Metapost best for drawing complex smooth curves (i.e., Bezier, splines), since you do not have to directly specify Bezier control points. ...
37
votes
1answer
2k views

Hobby path realization in convex hull approach

Motivation In the answer Highlight a group of nodes in a tikz tree, Jake suggested combining the convex hull approach from padded boundary of convex hull with the hobby path and I was really ...
24
votes
3answers
3k views

Using opacity in TikZ causes strange rendering in Acrobat.

I have a problem using opacity in TikZ. Whenever I use it somewhere in a picture, I get weird side-effects: colors in (some) other parts of the documents are changed apparently randomly and it makes ...
25
votes
3answers
13k views

How can I set the TikZ label anchor explicitly?

I want to add a label to a node, but "inside" the node. Something like this: The manual seems to indicate it might be possible, although no actual key is named. The ... anchor point for the ...
18
votes
2answers
7k views

Package PGF Math Error: Unknown operator `o' or `of'

I am getting a weird error while trying to place a node above another node using the below= syntax. \documentclass{article} \usepackage{tikz} \begin{document} \begin{tikzpicture} \node[] (node1) at ...
25
votes
4answers
5k views

Pascal's triangle in tikz

I would like to typeset the top part of Pascal's triangle. To get the triangle with the names of the binomial coefficients, i.e., {n \choose k}, I used the following code \begin{tikzpicture} \foreach ...
25
votes
3answers
2k views

How can I work around this TikZ bug: (\x)^2 and \x^2 produce different results in TikZ plot?

I have some files with TikZ graphics that have suddenly changed appearance since I upgraded to PGF-2.10. Here is a minimal example: \documentclass{minimal} \usepackage{tikz} \begin{document} \...
64
votes
6answers
32k views

Draw arc in tikz when center of circle is specified

It would be convenient sometimes to be able to draw an arc in tikz by specifying the center of the corresponding circle its radius the initial/final angle i.e., the "natural" way an arc is defined,...
30
votes
1answer
12k views

Simplest way to overlay a text + rectangle label an image?

For my figures thus far I've been using LaTeX's straightforward figure code, i.e.: \begin{figure} \centering \includegraphics[width=6.5in]{figure.png} \caption[Stuff here]{(A) More stuff ...
25
votes
6answers
24k views

How to establish node-anchor-like points on a (tikz) rectangle path (is there a better method than the one described)?

Background and desired functionality Rectangles can be drawn with tikz in a number of ways, one way of doing so is to define a rectangle node as follows: \node (rectangle) [draw, rectangle] {A ...
32
votes
3answers
11k views

Using math in TikZ

I know it has been asked and answered before, and I need to put { and } around it, but for some reason this doesn't work: \draw (0,0) -- ({atan(1)}:{sqrt(2)}); Any idea why?
26
votes
9answers
6k views

TikZ: changing colour of a path half way along

Here's the problem: \documentclass{minimal} \usepackage{tikz} \begin{document} \begin{tikzpicture} [scale = 3, foo/.style={line width = 5pt}] \draw[foo,red] (0,0) -- (0,1); \draw[foo,blue] (0,1) -- (...
18
votes
5answers
3k views

Creating a node fitting the horizontal width of two other nodes

I have the two PGF nodes foo and bar positioned in a row. \documentclass{article} \usepackage{tikz} \usetikzlibrary{positioning} \begin{document} \begin{tikzpicture}[node distance=0.2cm,mynode/....
23
votes
11answers
44k views

Windows API error 5: “Access is denied” when trying to compile TikZ picture

I installed PGF but are unable to compile the following document: \documentclass[10pt]{article} \usepackage{pgf,tikz} \begin{document} \begin{tikzpicture} \draw (0,0) --(1,2); \end{tikzpicture} \end{...
19
votes
4answers
5k views

Problem with babel and tikz using \draw

I'm trying the next code: \documentclass[pdftex,spanish]{article} \usepackage{babel} \usepackage{tikz} \begin{document} Simple arrow: \begin{tikzpicture} \draw[->] (-1.5,0) -- (1.5,0); \...
13
votes
5answers
1k views

How to draw a return arrow from node-3 to node-1

Say I have a code to draw a flow chart, I want now a arrow from node 3 to node 1, how can I do that? 1<--| | | 2 | | | 3---- MWE \documentclass[class=article,border=0pt]{standalone} \...
30
votes
4answers
9k views

How to place a node in the middle of an arc?

I think it is a simple question, but I didn't find the answer yet. The code I'm using is the following: \draw[->](1,0) arc(0:-30:1) node[midway]{$30$}; But in this way the node is placed at the ...
8
votes
4answers
12k views

Pgfplots: how to fill bounded area under a curve using addplot and fill?

I am looking shade the bounded area under the graph of f(x)=x^2 from 0 to 1. For my other plots I was fine using the shading with coordinates because they were all polygons. I've come across a bunch ...
23
votes
5answers
4k views

How can I force TikZ pin angle?

I'm trying to draw a resultant force diagram like so: \documentclass{article} \usepackage{tikz} \begin{document} \begin{tikzpicture} \draw (0,0) -- (90:2.7) -- ++ (-13:12) node[shape=...
61
votes
10answers
16k views

How to speed up LaTeX compilation with several TikZ pictures?

The slowest part is a dozen of diagrams in TikZ.
68
votes
2answers
36k views

Draw Curly Braces in TikZ

I am using TikZ with the following code to draw a picture. How can I turn the curly bracket next to $P_2$ to the right? \documentclass{article} \usepackage{tikz} \usetikzlibrary{decorations....
43
votes
8answers
21k 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:
33
votes
4answers
11k views

Faded drop-shadow using tikz-based rounded rectangle?

Background Epigraphs are in a box with rounded corners. The boxes have a drop-shadow. Example Picture #1 shows a shadow, while Picture #2 shows a shadow that fades out (soft blur): Problem ...
25
votes
1answer
5k views

TikZ picture shapes

I am very new to the TikZ package, and I need to draw some flow chars by using the following shapes. However I couldn't figure out how to draw the 4th and and 6th ones below. It would be very nice (...
32
votes
2answers
15k views

TikZ rectangular node with different rounded corners

This is my minimal example: \documentclass{article} \usepackage{tikz} \begin{document} \begin{tikzpicture} \node[rounded corners=3pt, draw, fill=red!20]{Hallo!}; \end{tikzpicture} ...
25
votes
2answers
3k views

How can I produce a 'ring (or wheel) chart' like that on page 88 of the PGF manual?

I really like the 'ring chart' or 'wheel chart' given as an example on page 88 of the PGF manual. It is like a pie chart, but with a label in the centre. Unfortunately, the manual doesn't give the ...
17
votes
3answers
3k views

Drawing different tikz shapes parameterized by data from a file

I have a file with three columns of data, x, y, r. # x y r 1 1 0.1 2 2 0.5 3 3 1.2 and so on. I'd like to loop over the rows, and draw a circle at x,y with radius r for each row. I first thought I'...
9
votes
6answers
5k views

Draw an aircraft with Tikz

I want to draw a plane using the Tikz tool. You will find, attached, a screenshot.
19
votes
2answers
3k views

Strange arrow mark with TikZ edge and anchors.

When I draw an edge between two nodes with anchors and globally set option [->], I get an additional arrow tip symbol at the beginning of the last edge in the path. For example in \documentclass{...
19
votes
3answers
1k views

Tikz: joining points on a circle

I have the following figure I would like to draw portions of circles between some of the red points. More explicitly, I would like to go from ac1 to ab1 and then to ac2 following circle A, then go ...
26
votes
3answers
3k views

Applying a postaction to every path in TikZ

Sometime, for example in a solution to a recent question, one wants to apply a postaction (like a decoration) to a group of paths. A naive solution is to use every path/.style={}. Unfortunately this ...
10
votes
1answer
183 views

Measuring align

From what I read it seems that align environments are processed twice: the first time for measuring, the second time for actual typesetting. My question is whether one can get access to these ...
95
votes
6answers
5k views

What is the minimum one needs to know to use TikZ?

I am fed up with the poor quality of the pictures in the papers written by my graduate students and am trying to convince them to use TikZ. I know of three ways to begin learning TikZ: The TikZ &...
71
votes
5answers
16k views

How can I create a pdf document exactly as big as my tikz picture?

I often create pictures in tikz that I want to either send to someone, or include in an email. The problem with that is that there is a big white space around and and especially below my pictures. To ...
43
votes
4answers
18k views

Drawing Mechanical Systems in LaTeX

I really like CircuiTikZ for drawing diagrams in my LaTeX documents. However I mostly draw mechanical and not electronic systems, which is why I'm looking for some similar way to draw mechanical ...
41
votes
3answers
15k views

Pgfplots: how to fill the area under a curve with oblique lines (hatching) as a pattern?

I want to hatch the area under a curve (graph of a function) with oblique lines on an interval (to illustrate the function's integral on that interval). This can be done elegantly in gnuplot... ......
30
votes
1answer
5k views

How to customize the table of contents using TikZ?

Are you aware of tentatives to customize the table of contents with TikZ? I am thinking of fancy graphical objects (coloured ovals, squares, rectangles...) coming with "chapter" or the numbering, for ...