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Two different hacks, one suggested by <u>Herbert Voss</u> and the other by <u>Martin Costabel</u>, both
<div>fix the alignment—<b>thank you both</b>.</div>
<div>But I am still confused about how this works (and haven’t been able to figure it out from either Latex Companion III or Herbert’s PSTricks book).</div>
<div><br>
</div>
<div> In the sequence of commands</div>
<div><br>
</div>
<div>
<div>\subfloat[Level ]{</div>
<div><span class="Apple-tab-span" style="white-space:pre"></span>\psset{unit=\<font color="#ff2600">alpha</font>}</div>
<div>\begin{pspicture}[unit=\<font color="#b51a00">beta</font>](\<font color="#b51a00">gamma.\gamma</font>)(\<font color="#b51a00">delta</font>,\<font color="#b51a00">delta</font>)</div>
<div>\psgrid[subgriddiv=<font color="#e63b7a">m</font>, gridlabels=0](0,0)(<font color="#b51a00">n,n</font>)</div>
<div>\end{pspicture}</div>
<div>}\\</div>
<div><br>
</div>
<div>What exactly do the units \alpha and \beta control? I had assumed that having both was redundant (that they were automatically equal, and gave the units for the space alotted to the subfigure. But then what is the role</div>
<div>of \gamma and \delta? My best guess is that alpha is the <i>a priori</i> unit for coordinatizing the space for the subfigure, and withing that, gamma and delta tell us where the lower left and upper right corners of the </div>
<div>pspicture are in the alpha-controlled coordinates. If the space allotted to the subfigure is fixed, where is its origin? Then what is beta? It seems to control the size of the spaces</div>
<div>between the lines dividing the grid (or…the sides of the grid are always at (successive) integer values of the</div>
<div>coordinates inside the pspicture, for which the unit is beta). Clearly n controls the major division lines in the</div>
<div>grid, and m specifies how many subdivision lines are in each cell of the major division. But then I would expect </div>
<div>that if alpha and gamma are the same for two successive subfigures (and the first set of coordinates in \psgrid</div>
<div>is (0,0) ) then the actual grids should line up at least on the left. Maybe someone can point me to the appropriate pages of LC III or PSTricks where this is explained.</div>
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<blockquote type="cite">
<div>On Jun 10, 2025, at 05:53, Herbert Voss <Herbert.Voss@fu-berlin.de> wrote:</div>
<br class="Apple-interchange-newline">
<div>
<div><br>
<br>
Am 10.06.25 um 03:31 schrieb Nitecki, Zbigniew H.:<br>
<blockquote type="cite">I’m clearly misunderstanding some of the parameters for floats,<br>
pspicture, and \psgrid.<br>
<br>
The code below yields two grids of the same size (with different<br>
subdivisions).<br>
Should I have set the two pspicture parameters differently?<br>
From what I understand,<br>
the two pspictures are both 9cm x 9cm boxes, so why are they aligned<br>
differently?<br>
<br>
% !TEX TS-program = latex<br>
\documentclass{article}<br>
<br>
\usepackage{pstricks}<br>
\usepackage{subfig}<br>
<br>
\begin{document}<br>
<br>
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%<br>
<br>
\begin{figure}<br>
\begin{center}<br>
%<br>
\subfloat[Level $2$]{<br>
\begin{pspicture}[unit=3cm](0,0)(3,3)<br>
</blockquote>
<br>
That setting is too late for (3,3). Use<br>
<br>
\subfloat[Level $2$]{%<br>
\psset{unit=3cm}<br>
\begin{pspicture}(0,0)(3,3)<br>
\psgrid[subgriddiv=3, gridlabels=0](0,0)(3,3)<br>
\end{pspicture}<br>
}<br>
<br>
You can also run the document with lualatex, then you'll get directly<br>
the PDF.<br>
<br>
Herbert<br>
<br>
<br>
<br>
<br>
<br>
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</blockquote>
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