<html><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; ">From Section 28.31 of Voss's book (3rd ed.), I expect the following<div>************************************************************************************</div><div><div><span class="Apple-tab-span" style="white-space:pre"> </span>\begin{pspicture}(-2.5,-2.0)(2.5,3.5)</div><div><span class="Apple-tab-span" style="white-space:pre"> </span>\psset{xunit=2cm, yunit=2cm}</div><div><span class="Apple-tab-span" style="white-space:pre"> </span></div><div><span class="Apple-tab-span" style="white-space:pre"> </span>\pstThreeDSquare[fillstyle=solid, fillcolor=lightgray](0,0.5,0)(1,0,0)(0,0,1)</div><div><span class="Apple-tab-span" style="white-space:pre"> </span></div><div><span class="Apple-tab-span" style="white-space:pre"> </span>\ThreeDput[normal=0 1 0]{</div><div><span class="Apple-tab-span" style="white-space:pre"> </span>\rput(0.2,-0.2){$\vec{x_{0}}$}</div><div><span class="Apple-tab-span" style="white-space:pre"> </span>\rput(0.25,0.45){$R$}</div><div><span class="Apple-tab-span" style="white-space:pre"> </span>}</div><div><span class="Apple-tab-span" style="white-space:pre"> </span></div><div><span class="Apple-tab-span" style="white-space:pre"> </span>\end{pspicture}</div><div>*****************************************************************************************</div><div><div> *File List*</div><div> article.cls 2005/09/16 v1.4f Standard LaTeX document class</div><div> size11.clo 2005/09/16 v1.4f Standard LaTeX file (size option)</div><div>pstricks.sty 2008/01/24 v0.37 LaTeX wrapper for `PSTricks' (RN,HV)</div><div>pstricks.tex 2008/02/01 v1.21 `PSTricks' (tvz)</div><div> xcolor.sty 2005/12/21 v2.09 LaTeX color extensions (UK)</div><div> color.cfg 2007/01/18 v1.5 color configuration of teTeX/TeXLive</div><div> dvips.def 1999/02/16 v3.0i Driver-dependant file (DPC,SPQR)</div><div>pst-3dplot.sty 2006/02/07 package wrapper for pst-3dplot.tex (hv)</div><div>pst-3dplot.tex 2008/02/08 v1.80 `PST-3dplot' (hv)</div><div>pst-xkey.tex 2005/11/25 v1.6 PSTricks specialization of xkeyval (HA)</div><div> xkeyval.sty 2005/11/25 v2.5e package option processing (HA)</div><div> xkeyval.tex 2005/11/25 v2.5e key=value parser (HA)</div><div> ***********************************************************************************************</div><div>to print the labels on the square. However, I get</div><div></div></div></div></body></html>