Wrong indentation in tikz environment

Question

I want to create a titlepage with tikz and therefore I have a node within a title and a subtitle after a line-break. The problem now is, that something is wrong with the indentation, as you can see in the following picture. Both texts should start at the same position.

The compileable code example:

\documentclass[a5paper,11pt,twocolumn,parskip=half,parindent=none]{scrbook}
\usepackage[ngerman,german]{babel}
\usepackage[utf8x]{inputenc}
\usepackage{lmodern}
\selectlanguage{german}
\usepackage{tikz}
\usepackage{color}
\usepackage{geometry}
\usepackage{graphicx}
\usepackage{helvet}
\definecolor{fsblue}{rgb}{0.17,0.24,0.31}
\definecolor{fsorange}{rgb}{1,0.44,0.0}
\renewcommand{\familydefault}{\sfdefault}
\geometry{top=25mm, left=15mm, right=12mm, bottom=20mm}
\begin{document}
\begin{tikzpicture}[remember picture,overlay,shift={(current page.south west)}]
\node [
  fill=fsorange,
  inner xsep=1em,
  minimum height=1cm,
  text width={\paperheight},
  anchor=north west,
  rotate=90
] at (current page.south west) {Text Text};
\node [
  fill=fsblue,
  inner xsep=1.5cm,
  minimum height=3cm,
  text width={\paperwidth-1cm},
  anchor=south west
] at (1cm,13cm) {\color{white}\bfseries\Huge B Text one\\\normalsize B Text two};
\end{tikzpicture}
\end{document}

Answer 1

Here's why there is no general solution to this:

\documentclass{article}
\renewcommand{\familydefault}{\sfdefault}
\begin{document}

  \fbox{\Huge B}

  \fbox{B}

\end{document}

The boxes are aligned perfectly. You are trying to align their content. But, to TeX, everything is a box. In particular, a B is just a box with particular dimensions. It can't take account of what is inside the box. It doesn't care what is inside the boxes. All it cares about is their dimensions.

To line up the 'B's, you would have to compensate for the difference in the space on the left of the 'B' within the box. That depends on a number of things: the font, the size, the character. There is no general way to do this. If you want this case to look right, you'll need to adjust for this case.

Here are the results for 'X' from the same font:

If you adjusted for the 'B's, you would need a quite different adjustment - perhaps none at all - for the 'X's.

So maybe you could just choose titles which begin with 'X'...?

EDIT

Apart from manually specifying appropriate coordinates for nodes containing the two texts, you can move one a little left by saying something like

\node (a) {text 1};
\node (b) [anchor=north east] at ([xshift=-.5em]a.south east) {text 2};

or

\node (b) [anchor=north east, xshift=-.5em] at (a.south east) {text 2};

or use the positioning library

\node (b) [anchor=north east, below left=0pt and .5em of a.south east] {text 2};

or similar.

Thanks to Sean Allred's comment for suggesting this question which focuses on ways to 'nudge' nodes into position.

Answer 2

For my solution I have added an additional node with a fixed position. It only works for \normalsize\bfseries text. Code below:

\begin{tikzpicture}[remember picture,overlay,shift={(current page.south west)}]
\node [
  fill=fsorange,
  inner xsep=1em,
  minimum height=1cm,
  text width={\paperheight},
  anchor=north west,
  rotate=90
] at (current page.south west) {\color{white}\bfseries\@date};
\node [
  fill=fsblue,
  inner xsep=1.5cm,
  minimum height=3cm,
  font=\color{white}\bfseries\Huge,
  text width={\paperwidth-1cm},
  anchor=south west
] at (1cm,13cm) {\@titlehead};
\node [
  font=\color{white}\bfseries\normalsize,
  text width={\paperwidth-1cm},
  anchor=south west
] at (2.415cm,13.6cm) {\@subject};
\end{tikzpicture}