A graphing program I use has support for TikZ output. It generates a \begin{tikzpicture} ... \end{tikzpicture} which I can include in my document. The problem, however, is that it appears to insert a large amount of whitespace around the actual drawing.
Currently, my approach has been to include the plot in an 'empty' LaTeX file, run pdflatex on it and then unleash pdfcrop. The resulting PDF can then be included in place of the TikZ image.
However, this is not at all clean, and quite a bit of work on my part. Therefore, I am wondering if I can instruct TikZ to do the cropping for me.
Update Here is a minimal document that shows the issue; sorry for the length, machine generated TikZ is (unfortunately) never that concise. I've added a chunk at the end to show the bounding box for the figure.
\documentclass[11pt]{article}
\pagestyle{empty}
\usepackage{tikz}
\begin{document}
\begin{tikzpicture}{0pt}{0pt}{518pt}{403pt}
\clip(0pt,403pt) -- (389.957pt,403pt) -- (389.957pt,99.6166pt) -- (0pt,99.6166pt) -- (0pt,403pt);
\color[rgb]{1,1,1}
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\begin{scope}
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%\color[rgb]{1,1,1}
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% My stuff -- show the bb
\path[draw=black] (current bounding box.north west) rectangle (current bounding box.south east);
\end{tikzpicture}
\end{document}
