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Using [baseline] on a tikzpicture with a background layer seems to interfere with the placement of a blur shadow:

enter image description here

MWE (for use with pdflatex):

\documentclass{article}
\usepackage{tikz}
\usetikzlibrary{shadows.blur}
\usepackage[T1]{fontenc}
\pgfdeclarelayer{background}
\pgfsetlayers{background,main}
\begin{document}

\begin{tikzpicture}[baseline]
\node[text width=0.4\textwidth,inner xsep=4mm,inner ysep=2mm] (A){TEXT};
   \begin{pgfonlayer}{background}
   \path[draw=black!30, blur shadow, fill=gray!10]
      (A.south east) -- (A.south west) -- (A.north west)  -- (A.north east) -- cycle ;%
   \end{pgfonlayer}
\end{tikzpicture}

\end{document}

Deleting the [baseline] makes everything work fine, as does substituting drop shadow for blur shadow.

Mohan
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1 Answers1

8

This is a bug in pgf-blur. Part of the construction of the drop shadow involves making a new picture and it is incorrectly inheriting the baseline options from the main picture. I've pushed a revision to TeX-SX Launchpad which purports to fix this, but it will need testing (please do!) and it is for the package author to decide on how best to fix this before uploading to CTAN.

Andrew Stacey
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  • Running latex on pgf-blur.dtx (revision 169) gives

    Package doc Error: Checksum not passed (456<>475). (Presumably this is a cosmetic error.)

     – Mohan Dec 09 '12 at 20:43
  • @Mohan Yes, at this stage the checksum is cosmetic. – Andrew Stacey Dec 09 '12 at 22:15
  • @LoopSpace tested here, too, it fixes some more bugs, too. Did you try to contact the upstream author and see whether one can get a released fixed version? – norbert Jul 22 '16 at 02:06