psframe

psframe will simply create a box.
\begin{pspicture}(-1,-1)(2,2)
\psframe(0,0)(1,1)
\end{pspicture}

This will create a box where the lower left-hand corner is at (x0,y0) and upper right-hand corner is at (x1,y1):

Dan Lynch © Mathapedia 2025