tikz get picture width and height in pixels

Asked Nov 20 '17 at 19:39

Active Nov 20 '17 at 19:39

Viewed 802 times

Below code can get picture width and height in pt, what's the right way to get width and height in pixel?

\documentclass[border=1pt,convert={outfile=\jobname.png}]{standalone}
\usepackage{tikz}
\usepackage{calc}
%https://upload.wikimedia.org/wikipedia/commons/6/62/Panthera_tigris_sumatran_subspecies.jpg
\newsavebox{\graph}\savebox{\graph}{\includegraphics{Panthera_tigris_sumatran_subspecies.jpg}}
\newlength\gh\setlength\gh{\heightof{\usebox\graph}}
\newlength\gw\setlength\gw{\widthof{\usebox\graph}}
\begin{document}
\begin{tikzpicture} 
    \node[draw] {\the\gw,\the\gh};
\end{tikzpicture}
\end{document}

Output:

asked Nov 20 '17 at 19:39

lucky1928

4,151

5

pixel is display dependent hence TeX can't know what your display settings are – percusse Nov 20 '17 at 19:44
Related: https://tex.stackexchange.com/questions/108516/uncertain-about-dpi-in-latex And 1 inch is 72.27 pt. – Torbjørn T. Nov 20 '17 at 22:00
1

BTW, one can use \ht\graph, \dp\graph and \wd\graph for the height, depth and width. Saves a whole lot of \newlengths. – John Kormylo Nov 20 '17 at 23:22

tikz get picture width and height in pixels

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