LaTeX forum ⇒ LyX ⇒ Centering image on page

[johnny7]

For now I've got enough of this random \vspace*{\fill} so I looked for another solution. I found one here: https://tex.stackexchange.com/questions/32661/how-to-locate-figures-with-x-y-specified-location-in-a-presentation

Code: [Select all] [Expand/Collapse] [Download] ({untitled.tex}) Open in Overleaf

\setlength{\unitlength}{1cm}
\begin{picture}(15,20)(-0.5,2)
\hbox{\includegraphics[width=15cm]{\string"test\string".jpg}}
\end{picture}

I still don't really understand these four numbers, I just tried around a lot. Now it's nearly in the center of the page. Does anyone care to calculate the numbers I have to insert to move an image of 15x20cm in the center of the page?

[Stefan Kottwitz]

Well, the first two numbers are the picture dimensions (width and height) and the other to numbers the coordinates of the bottom left corner of the image, and all are factors of \unitlength, the value you set to 1 cm.

How about this way, it's more straightforward:

Code: [Select all] [Expand/Collapse] [Download] ({untitled.tex}) Open in Overleaf

\documentclass{article}
\usepackage{tikz}
\begin{document}
\begin{tikzpicture}[remember picture, overlay]
  \draw node at (current page.center) {\includegraphics{filename}};
\end{tikzpicture}
\end{document}

Such overlay pictures require two passes of compiling.

Stefan