10
votes
2answers
133 views

Convert from physical dimensions to axis cs coordinate values

In answering PGFPlots: Howto draw a label at a zero of a function?, I got stuck on converting a length in pt to the actual coordinate value in the axis cs system. Here I only need the x value, but ...
2
votes
0answers
40 views

Is there an TikZ command to provide the height and width of the picture? [duplicate]

I've found the following How can I compute the distance between two coordinates in TikZ?. So, I know how to find the size of a TikZ picture as follows: \documentclass{article} ...
1
vote
1answer
72 views

Set a length that will adopt tikz's global lengths

I am trying to draw a rather simple tikz picture that consists of some very acurately defined levels. My code is \documentclass{article} \usepackage{tikz} \usetikzlibrary{plotmarks} ...
3
votes
1answer
206 views

Settting PGFplots axis environment options by means of \newcommand and {\newlength,\setlength}

Because I often use the same options for multiple axes in my LaTeX documents, I use the following code to simplify my life. \documentclass{article} \usepackage{pgfplots} ...
9
votes
1answer
150 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 ...
3
votes
1answer
106 views

Limitations associated with getting length as number

I am representing actual object dimensions with scaled down graphics which capture the relative proportions of the objects (for instance, imagine a simple set of three or four line segments). I would ...
4
votes
3answers
184 views

angled lines of unkown length in TikZ

I am trying to create angled lines from a point to specific border. Here is a minimal example: \documentclass[margin=2mm]{standalone} \usepackage{tikz} \begin{document} \begin{tikzpicture} ...
9
votes
1answer
2k views

How to fix TikZ node's height with \heightof?

I can use \widthof{text} to fix a minimum width of a TikZ's node. I would like to use \heightof{text} to fix its minimum height but it doesn't work. I just want to fill my nodes with one word but I ...
4
votes
1answer
221 views

retrieve the length of a segment

I want to retrieve the length of a segment in cm for display in a node As in the example below, I would like to display the length of three vectors \documentclass{article} \usepackage{tikz} ...
16
votes
3answers
1k views

How can I know the default PGF line width?

Is there some macro that will tell me what the default PGF line width is? I have tried creating my own macro by cloning \pgflinewidth before it has been modified, i.e. ...
17
votes
4answers
2k views

A line of length \textwidth in TikZ

Why does the following latex document: \documentclass{minimal} \usepackage{tikz} \begin{document} \noindent \begin{tikzpicture} \draw (0,0) -- (\textwidth,0); \end{tikzpicture} ...
4
votes
1answer
373 views

Lengths and for-loops

It seems that lengths are not updated in for loops. Compiling the code below: \documentclass{article} \usepackage{tikz} \newlength{\test} \newcommand{\inc}{\addtolength{\test}{1cm}} ...
6
votes
1answer
215 views

Usage of a saved dimension in another saved dimension in a \pgfdeclareshape command

I have a question about \saveddimen usage inside of a \pgfdeclareshape command. My code is as follows: \documentclass{article} \usepackage{tikz} %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % ...
9
votes
2answers
392 views

How can I globally set pgfmathsetlength?

How can I declare a length via pgfmathsetlength global? The example results in 20pt -- 5pt -- 20pt But I had expected: 20pt -- 5pt -- 5pt \documentclass[10pt]{article} \parindent0pt ...
5
votes
1answer
560 views

TikZ, foreach and sum

I'm trying to create a list of rectangles of various sizes, starting at the end of the previous rectangle. I'm using a foreach loop with a TeX length, but I don't get the result I want, and I really ...
12
votes
1answer
2k views

Tikz - move/reposition arrow decorations (arrowhead length/size)

I'm trying to build a 'dimension line' macro for Tikz: \documentclass{article} % note: with \documentclass{minimal}, this example fails with: % ! Undefined control sequence. % ...
3
votes
2answers
1k views

Calculate maximum of lengths

How can I calculate a maximum of lengths? I am aware of pgfmath's function max(x_1,x_2,...) \documentclass[a4paper,draft]{article} \usepackage{tikz} \pgfmathparse{max(3,4)} \begin{document} ...