Graphics, Figures & Tables ⇒ TikZ Scaling Inconsistency

[LaTexLearner]

I am trying to teach myself TikZ scaling for number lines. Apparently, there's something about scaling the x- and y-axes that I don't understand.

Why are the vertical tick marks different sizes for these two number lines if the y-scale is 1.8 for the first number line but the x- and y-scales are both 1.8 for the second?

Code: Select all

\documentclass[12pt]{article}

\usepackage{tikz}
\usetikzlibrary{arrows}

\begin{document}

\begin{tikzpicture}[xscale=3][yscale=1.8] 
\draw[-latex] (0,0)--(2,0);
\foreach \x in {0,...,6}
\draw (\x/3,-0.1)--(\x/3,0.1);
\foreach \x in {0,...,2}
\node[below] at (\x,-0.15) {\x};    
\end{tikzpicture}

\vspace{3cm}

\begin{tikzpicture}[scale=1.8]
\draw[-latex] (0,0)--(4.5,0) ;
\foreach \x in {0,...,12}
\draw (\x/3,-0.1)--(\x/3,0.1);
\foreach \x in {0,...,4}				
\node[below] at (\x,-0.15) {\x};    
\end{tikzpicture} 

\end{document}

[Stefan Kottwitz]

This is the problem:

Code: Select all

\begin{tikzpicture}[xscale=3][yscale=1.8]

As result, you gave just xscale as option. The [yscale=1.8] would be a second set of options, so in a second argument, but tikzpicture takes only one argument in square brackets, which has a list of key=value settings.

So, the correct way is:

Code: Select all

\begin{tikzpicture}[xscale=3,yscale=1.8]

Stefan

[LaTexLearner]

Got it, thanks!