Graphics, Figures & Tables ⇒ Resize pspicture (not using \resizebox or \psscalebox)

[smr01cmh]

Hi all,
I'd like the ability to re-size my pspicture to a specified width, but I don't want to use \resizebox or \psscalebox. The reason I don't want to use either of these options is that they both scale the font size of the labels, and any other text within the graphic.

I've found a way to do this (see MWE below), but I'm interested to see if anyone has a better way of doing it.

PS: I realize that my code doesn't account for cases when xmin & xmax are less than 1 in absolute value (and probably others too).

Code: Select all

Code, edit and compile here:

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\documentclass{article}
\usepackage{pstricks}
\usepackage{pstricks-add}
\newlength{\figurewidth}
\makeatletter
\newcommand{\setwindow}[5]{\def\xmin{#1}%
                           \def\ymin{#2}%
                           \def\xmax{#3}%
                           \def\ymax{#4}%
                           \pstFPsub\viewingwidth{#3}{#1}%
                 \pstFPdiv\result{\strip@pt#5}{\viewingwidth}%
             \psset{unit=\result pt}}
\makeatother
\begin{document}
\setlength{\figurewidth}{5cm}
\setwindow{-10}{-10}{10}{10}{\figurewidth}
\begin{pspicture}(\xmin,\ymin)(\xmax,\ymax)
            \psgrid[subgriddiv=0,gridcolor=lightgray,gridlabels=0]
      \psaxes{<->}(0,0)(\xmin,\ymin)(\xmax,\ymax)
      \psplot{-10}{10}{x}
\end{pspicture}
\end{document}
 
 
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Run LaTeX here

[frabjous]

Could you simply change the value of pstricks's unit? (It suggests doing this to scale graphics on p. 6 of the pstricks manual.)

[smr01cmh]

Yes, that's what my code does, according to the value of xmin, xmax, and the desired width.

I just wondered if there was an in-built way of doing it.

[CrazyHorse]

Yes, that's what my code does, according to the value of xmin, xmax, and the desired width.

I just wondered if there was an in-built way of doing it.

eg, before pspicture:

Code: Select all

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\psset{unit=2}
 
 
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[frabjous]

eg, before pspicture:

Code: Select all

1
\psset{unit=2}
 
 
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smr01cmh's code is already using that command. I should have looked at it more carefully; it's a neat way of accomplishing something more like \resizebox, whereas using \psset{unit=X} alone only accomplishes something similar to \scalebox. I think it's pretty clever, and I for one don't know of a better way to accomplish this, at least not for pstricks. Maybe someone else will.

[smr01cmh]

The trouble with \resizebox is that everything gets scaled, including labels and text, which can make for an ugly picture in the context of the document.

Using \psset{unit=...} on its own is fine, but one has no idea how big the picture is going to end up; I have a lot of pspictures and I don't want to have to worry about tweaking \psset{unit=...} for each one individually, hence my code.

[smr01cmh]

I think that the newly-defined psgraph in pst-plot accomplishes this. The latest pst-plot.pdf describes it; it was only released a month ago, so I don't feel too bad for missing it.

[localghost]

I think that the newly-defined psgraph in pst-plot accomplishes this. The latest pst-plot.pdf describes it; it was only released a month ago, so I don't feel too bad for missing it. […]

The psgraph environment is not new and has been part of pstricks-add for a long time before it was moved to pst-plot.


Thorsten