{foreach} is for questions regarding the TikZ/PGF module of the same name which can also be used as a standalone package pgffor.

learn more… | top users | synonyms

2
votes
0answers
53 views

Defining and expanding macros In loops

I want to define and expand macros in a \foreach loop. The names of the macros depend on the iteration step. The macros I define are interpreted as strings rather than sets of numbers that I actually ...
2
votes
4answers
135 views

TikZ's \foreach \x/\y in… the set of running indices being a macro

Please look at this minimal example which contains my question: \documentclass[english]{article} \usepackage{tikz,ifthen,listings} \newcommand\IndexListOne{1,2,3} ...
5
votes
2answers
113 views

error using \foreach with ellipse directions

The following line \foreach \x / \y in {0.422201/1.000000,1.000000/2.368540} {\draw[very thin] (0,0) ellipse (\x and \y)}; gives ERROR: Package PGF Math Error: Unknown operator `a' or `an' (in ...
2
votes
1answer
41 views

foreach and renewcommand

I want renew a variable in a foreach loop, but my codes won't work. Please help! \documentclass{article} \usepackage{pgffor} \newcommand\tests{ \newcommand\mytext{aaa} \foreach \i in ...
5
votes
3answers
371 views

pgfplots: use foreach inside addplot

I want to add a bunch of evenly spaced vertical lines to a plot using \foreach. I can do it like this: \documentclass{standalone} \usepackage{tikz} \usepackage{pgfplots} \pgfplotsset{compat=1.10} ...
2
votes
1answer
124 views

Print iteration counter in for loop

I am new using for loops in latex, and not sure if the following is possible. This is basically what I am trying to achieve: \documentclass{article} \begin{document} \foreach \x in {a,b,c} { ...
1
vote
1answer
78 views

How can I use \foreach to place nodes in a pgfplots axis?

I am trying to foreach over some coordinates to place nodes at whilst inside an axis environment. I followed the advice here, but I am getting nowhere; the following fails with error ! Argument of ...
0
votes
1answer
109 views

Insert pdf pages side by side

I have two versions (A4 size) of a document: new.pdf and old.pdf. I'd like to share with co-authors a pdf with pages side by side, so should be easy to compare the changes in the output. Here ...
6
votes
5answers
604 views

How can I draw several polygons on the same base line using TikZ?

I want to construct a figure that will be symmetrical polygons on the same base. So, there is an equilateral triangle, a square, a pentagon, a hexagon, etc. one side of all these is the same ...
0
votes
1answer
173 views

How to color multiple plots in rainbow colors?

I´m trying to color multiple curves of a line in rainbow colors wiht tikz. I´ve found the [wave] option for color from the xcolor pagacke, but I can't get it to work inside tikz's draw command. ...
3
votes
1answer
327 views

tikz foreach calculations

I am trying to do a simple calculation with the tikz foreach, but it does something very suprising: \documentclass{article} \usepackage{tikz} \usepackage[active,tightpage]{preview} ...
3
votes
0answers
58 views

trying to load images with foreach

Im trying to load images from a directory but I cant because I dont know why \i does not indicates the number, code searches the directory and the files were not found.. \documentclass{beamer} ...
2
votes
2answers
169 views

Accessing value in forloop

This code is not compiling and creates an error "Missing number, treated as zero". \newcounter{x} \forloop{x}{0}{\value{x} < 5}{ value is \value{x} \\ } How can the value of x be printed ...
5
votes
1answer
92 views

Use \foreach in non-Tikz context

I want to create my own footnote-command for floating environments: %begin figure bla\myFootnote{XXX} blabla\myFootnote{YYY} blabla\myFootnote{ZZZ} %end figure some text \printSavedFootnotes The ...
1
vote
1answer
59 views

adding labels after the arcs with a foreach loop

I have this code that generates a cycle graph with labels in the arcs (reference here): \documentclass[border=2pt,tikz]{standalone} \usepackage{wasysym} ...
3
votes
2answers
188 views

leading zero in \foreach of a TikZ calendar

The calendar TikZ library creates for each day a node called (<name>-<year>-<month>-<day>). But there is a leading zero for <day> from 1 to 9, that is, to use the node of ...
5
votes
3answers
123 views

foreach loop for adding arcs using commands path and edge

i want to know how to use the foreach loop for adding arcs using commands \path and edge. For instance, the following code generates a cycle and the task is to add the arcs not manually: ...
5
votes
1answer
172 views

tikz: help with this foreach loop

i'm getting an error in this code, can someone help me. I'm trying to create two concentric cycles, but it doesn't seems to work. \def\n{10} \defn\radio{3.00cm} \begin{tikzpicture} \foreach \x in ...
2
votes
3answers
318 views

Drawing an array of nodes using the foreach-construct

I sometimes need to visualize an array-like structure with tikz. I use nodes for array elements and position the next node right of the previous one, i.e., like this: \node[draw,rectangle] (n0) ...
5
votes
1answer
432 views

Changing color in foreach

I'm trying to create a picture like this: where I have a grid and I depict the boxes shifting by colors changing. I was hoping I could achieve this effect easily in Tikz with a foreach (I am very ...
4
votes
0answers
56 views

Using dynamic bounds in a tikz \foreach [duplicate]

I'm trying to draw something like an inner box integral approximation but with dynamic upper bound, lower bound, and stepsize. Unfortunately the \foreach command of tikz is not cooperating. ...
2
votes
1answer
140 views

One coordinate a function, the other a Brownian Motion

I am new with Tikz and I have a question which I did not manage to solve looking at other posts. I was wondering how to draw a figure in 2D, in which the first component (the x) is a function of x ...
5
votes
1answer
184 views

Why is my minipage in beamer foreach environment moving horizontally?

I am preparing a presentation with several very similar slides so I would like to use a \foreach loop with \only to generate them. The frames also contains minipages and these minipages seem to cause ...
2
votes
1answer
36 views

pgffor `foreach` loop over databib macro-generated list

The databib package from the datatool bundle allows one to import BibTeX databases and work with them from within LaTeX. The author field can be accessed as \DTLbibfield{Author}, which returns data ...
2
votes
1answer
328 views

Tikz coordinate calculations inside foreach

As part of a drawing that will go with an explanation of diffraction, I want to draw the "outer rays" of a beam of light and draw several rays in between. An MWE of how I'm going about this is shown ...
4
votes
2answers
173 views

Problem with tikz foreach

I am using a foreach loop to add plots to an axis environment and want each plot to have its own color. To achieve this I tried the following: \foreach \x/\barcolor in {1/red, 2/green, 3/blue, ...
2
votes
0answers
112 views

Putting repeated symbols along a path with decorations?

I have a drawing of a curved-plate capacitor: \documentclass[]{standalone} \usepackage{tikz} \usetikzlibrary{arrows} \usetikzlibrary{intersections} \begin{document} \begin{tikzpicture}[ ...
11
votes
3answers
287 views

3n arguments in a macro (n is an even number) for curves whose thicknesses increase or decrease

For some mathematical figures it's nice to be able to vary curve thickness smoothly along a path, to reproduce hand drawn mathematical figures made with inking liners for instance. One way to do it ...
2
votes
0answers
34 views

Count the number of items in a TikZ foreach statement [duplicate]

One sometimes defines macro's for TikZ as: \newcommand{\foo}[1]{ \foreach \x in {#1} { %do something } } Thus where the argument given to \foo is used in a \foreach loop. ...
0
votes
0answers
81 views

Take input from csv file and use it to create a custom-made table in tikz

I have a csv file that looks like this: Scott, William, Todd,Esben, Martin, Jesper, Alexander W.L Right now, the names are written this line \aebuildtable{20}{Scott,William,Todd,Esben, Martin, ...
1
vote
0answers
26 views

Use pi in x labels with pgfplots [duplicate]

With \documentclass{standalone} \usepackage{pgfplots} \begin{document} \begin{tikzpicture} \begin{axis}[samples=10, domain=0:pi] \addplot {x-sin(x)}; \end{axis} \end{tikzpicture} \end{document} ...
4
votes
1answer
204 views

Escaping special characters for use as a URL

If a url contain special characters (~ and #) using it as \href{http://people.brunel.ac.uk/~mastmmg/ssguide/set_work.html#4_32}{people.brunel.ac.uk} works just fine. But, I would like to have macro ...
5
votes
2answers
198 views

Use \foreach loop to execute macro with parameters of macro provided in a list

I have to execute a macro a number of times, and would like to provide a list of the parameters to be executed. So, instead of \FormatLinks*[Main Search Site]{Google}{http://www.google.com} ...
4
votes
1answer
226 views

Change colors of several pgfplots functions plotted in foreach gradually

In answering this question I actually caught myself unknowing how to solve the following issue. In the code below I'm dealing with many graphs, which I intend to gradually change in color based on ...
3
votes
1answer
79 views

Dynamically open and close environments for foreach construction

I am trying to iterate through a list of data. The data has sections mixed between the items. When a section appears, I need to typeset it with \section, then I need to create a itemize environment ...
1
vote
0answers
86 views

Ending a tikzpicture environment in conditional causes “Missing } inserted”

I want to create a number of tikzpictures. I have a number of items I want to draw. Each tikzpicture takes up a whole page and may contain up to 4 items. (It is not good enough to to have each item in ...
7
votes
3answers
126 views

putting figures in tabular with foreach (or an alternative)

I have a number of figures coming from experiments; they are indexed with an integer number, and they are not always consecutive. Given a list of the indexes, I need to put them in a tabular of, say, ...
6
votes
1answer
435 views

Repeating the same column type

I'm using package numprint to create a table which automatically formats its columns. However, the table has many columns. Right now, my table definition looks like this: \begin{tabular}{l n{2}{3} ...
2
votes
2answers
116 views

Include chapters using foreach

I have seperate .tex files in a directory named chapters in the main directory. I would like to include/input those. After some research a solution like the one below could be possible. Unfortunately ...
1
vote
3answers
247 views

TiKZ: place shortened arrow between every pair of points in a draw statement?

What is the simplest and most direct way of creating a sequence of arrows, like \begin{tikzpicture} \draw[->] (0,0) -- (1,0) -- (2,0) -- (2,1) -- (1,1) -- (0,1) -- cycle; \end{tikzpicture} so ...
3
votes
2answers
113 views

Tikz: foreach loop ignores part of the edges

I would like to draw some more or less advanced grid, using three consecutive (non-nested) foreach loops. For unknown reasons, the third loop seems to be ignored... Here is the code: ...
4
votes
1answer
37 views

Create commands for displaying pictures from a list of files

I have a lot of pictures to show in my document. My idea is to create one command per picture. So I try to use foreach command (maybe not the best for this...). I store the filenames and the names I ...
4
votes
0answers
74 views

TikZ: \foreach loop not executing expected number of iterations [duplicate]

I am trying to draw a Bézier curve defined by five control points following the algorithm discussed here. I generate the points of the curve with a \foreach loop: one point per iteration (also, from ...
1
vote
2answers
73 views

tikz foreach loop alignment failure

\documentclass[tikz]{standalone} \usepackage{pgf,tikz} \usetikzlibrary{positioning} \begin{document} \begin{figure}[t] \begin{tikzpicture}[node distance=0.2em] \node (T0) at (0,0) {$T_{0}$}; ...
5
votes
2answers
234 views

macro with \newcommand using foreach to create tree in tikZ

In the two examples below I use the same code in two different ways. Why is it that TikZ gets confused about who the parent node is when using the macro \department{name dept}{list of subdepts} ...
1
vote
0answers
35 views

why tikz will generate a series of .0.0.0.0? [duplicate]

I want to generate several point on a line, and this is the command: \documentclass{article} \usepackage{tikz,pgf} \usetikzlibrary{calc} \begin{document} \begin{figure} \begin{tikzpicture} % ...
9
votes
3answers
751 views

pgf plot and foreach loop

I have this function y=a*x^2 where a changes (-2.4,-2.1,-1.8,....,2.1,2.4) and i want to draw it with pgf plots. Problem is i dont know how to implement this i think i'll need foreach loop or ...
4
votes
2answers
417 views

How to include multiple pdf pages using \foreach as tikzpicture?

I know how to include pdf pages using package pdfpages and do it all the time, but always had problem with getting the page centered and scaling. I am now trying to learn how to use tikzpicture to ...
3
votes
1answer
330 views

tikz: How to pass a list as a parameter of a tikz macro and use it in a foreach inside the macro

I am trying to write a macro for drawing some graph, but since the content of each node is specific it has somehow to be passed as a list to the macro. Here is an example of an ad-hoc code of what I ...
6
votes
4answers
260 views

Incomprehensible behaviour of calc library with a “foreach variable”

If I compile the following code : \documentclass[12pt]{article} \usepackage[french]{babel} \usepackage{tikz} \usetikzlibrary{calc} \begin{document} \begin{tikzpicture} \foreach \i in ...