%%%% sundl_02.txt %%%% Created by Laurence D. Finston (LDF) Sun Oct 7 18:55:13 CEST 2007 %% $Id: sundl_02.txt,v 1.4 2007/10/07 17:34:14 lfinsto1 Exp $ %% * (1) Copyright and License. %%%% This file is part of GNU 3DLDF, a package for three-dimensional drawing. %%%% Copyright (C) 2007, 2008 The Free Software Foundation %%%% GNU 3DLDF is free software; you can redistribute it and/or modify %%%% it under the terms of the GNU General Public License as published by %%%% the Free Software Foundation; either version 3 of the License, or %%%% (at your option) any later version. %%%% GNU 3DLDF is distributed in the hope that it will be useful, %%%% but WITHOUT ANY WARRANTY; without even the implied warranty of %%%% MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the %%%% GNU General Public License for more details. %%%% You should have received a copy of the GNU General Public License %%%% along with GNU 3DLDF; if not, write to the Free Software %%%% Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA %%%% GNU 3DLDF is a GNU package. %%%% It is part of the GNU Project of the %%%% Free Software Foundation %%%% and is published under the GNU General Public License. %%%% See the website http://www.gnu.org %%%% for more information. %%%% GNU 3DLDF is available for downloading from %%%% http://www.gnu.org/software/3dldf/LDF.html. %%%% It is also available from %%%% http://www.dante.de/software/ctan/, the Dante www-server %%%% and from http://wwwuser.gwdg.de/~lfinsto1, %%%% the author's website. %%%% Please send bug reports to lfinsto1@gwdg.de %%%% The mailing list help-3dldf@gnu.org is available for people to %%%% ask other users for help. %%%% The mailing list info-3dldf@gnu.org is for the maintainer of %%%% GNU 3DLDF to send announcements to users. %%%% To subscribe to these mailing lists, send an %%%% email with ``subscribe '' as the subject. %%%% The author can be contacted at: %%%% Laurence D. Finston %%%% Kreuzbergring 41 %%%% D-37075 Goettingen %%%% Germany %%%% lfinsto1@gwdg.de %%%% s246794@stud.uni-goettingen.de %% * (1) \input epsf \font\small=cmr8 \font\large=cmr12 \font\Large=cmr17 \font\huge=cmr17 scaled \magstep2 \font\largebx=cmbx12 \font\Largebx=cmbx17 \font\hugebx=cmbx17 scaled \magstep2 \def\leaderfill{\leaders\hbox to 1em{\hss.\hss}\hfill} %% Uncomment for DIN A3 portrait. \special{papersize=297mm, 420mm} %% DIN A3 Portrait \vsize=420mm \hsize=297mm \advance\voffset by -1in \advance\hoffset by -1in \advance\voffset by 1in \advance\hoffset by 1cm \parindent=0pt \def\epsfsize#1#2{#1} %% ** (2) %% *** (3) %% *** (3) \headline={\hfil} \iftrue % \iffalse \pageno=-1 %\pageno=0 \vbox to \vsize{% \vskip.5cm \centerline{Sundials 2} \vskip\baselineskip \centerline{Laurence D. Finston} \vskip\baselineskip \centerline{Last updated: October 7, 2007} \vskip2cm %\centerline{\hskip.5cm\epsffile{sundl_02.0}} \iftrue % \iffalse {\small \hsize=.75\hsize %\hskip1cm \vbox{\vskip2\baselineskip This document is part of GNU 3DLDF, a package for three-dimensional drawing. \vskip\baselineskip Copyright (C) 2007, 2008 The Free Software Foundation \vskip\baselineskip GNU 3DLDF is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 3 of the License, or (at your option) any later version. \vskip\baselineskip GNU 3DLDF is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. \vskip\baselineskip You should have received a copy of the GNU General Public License along with GNU 3DLDF; if not, write to the Free Software Foundation, Inc.,\hfil\break 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA \vskip\baselineskip See the GNU Free Documentation License for the copying conditions that apply to this document. \vskip\baselineskip You should have received a copy of the GNU Free Documentation License along with GNU 3DLDF; if not, write to the Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA}} \fi \vskip2cm \begingroup \parindent=0pt \parskip=0pt \advance\baselineskip by 2pt \dimen0=15cm \centerline{\bf Contents} \vskip 2cm \hbox to \dimen0{Projection onto Equatorial Plane (Same for Any Latitude)\leaderfill 1} %% %% Chicago %% \hbox to \dimen0{Latitude $41^\circ$ $54'$ N (Chicago, Illlinois, USA)\hfil} \hbox to \dimen0{\hskip2em Perspective projection\leaderfill 2} \hbox to \dimen0{\hskip2em Vertical Dial, Facing Due South\leaderfill 3} \hbox to \dimen0{\hskip2em Horizontal Dial\leaderfill 4} %% %% London %% % latitude := 51.5777 %% London \hbox to \dimen0{Latitude $51^\circ$ $30'$ $28''$ N (London, UK)\hfil} \hbox to \dimen0{\hskip2em Perspective projection\leaderfill 5} \hbox to \dimen0{\hskip2em Vertical Dial, Facing Due South\leaderfill 6} \hbox to \dimen0{\hskip2em Horizontal Dial\leaderfill 7} %% %% Goettingen %% \hbox to \dimen0{Latitude $51^\circ$ $32'$ N (G{\"o}ttingen, Germany)\hfil} \hbox to \dimen0{\hskip2em Perspective projection\leaderfill 8} \hbox to \dimen0{\hskip2em Vertical Dial, Facing Due South\leaderfill 9} \hbox to \dimen0{\hskip2em Horizontal Dial\leaderfill 10} %% \endgroup \vss} \vfil\eject \fi %% *** (3) %% **** (4) %\iftrue \iffalse \pageno=0 \vbox to \vsize{% \vskip.5cm \line{\hskip1cm\epsffile{sundl_02.0}\hss} \vss } \vfil\eject \fi %% **** (4) \headline={Sundials 2\quad Copyright {\copyright} 2007, 2008 The Free Software Foundation\hfil % \folio\hfil Author: Laurence D. Finston\hfil} \pageno=1 \vbox to \vsize{% \vskip2cm \line{\hskip 2cm\epsffile{sundl_02.2}\hss} \vskip2cm \line{\hskip 2cm Parallel projection onto plane of equatorial dial % (plane of $c_0$, $r_0$ and $r_1$)\hfil} \line{\hskip 2cm Same for any latitude\hfil} \vss} \vfil\eject %% **** (4) Chicago \vbox to \vsize{% \vskip1cm \centerline{{\bf Chicago, Illinois, USA} $41^\circ$ $54'$ N, $87^\circ$ $39'$ W\hfil} \vskip1cm \line{\hskip1cm\epsffile{sundl_02.5}\hss} \vskip1cm \line{\hskip 2cm{\bf Perspective projection}\hfil} \line{\hskip 2cm Latitude $41^\circ$ $54'$ N (Chicago, Illinois, USA)\hfil} \line{\hskip 2cm Focus: $\rm{position} = (0, 5, -12)$, % $\rm{direction} = (0, 5, 10)$, % $\rm{distance} = 10$\hfil} \line{\hskip 2cm (dimensions in centimeters)\hfil} \vss } \vfil\eject \vbox to \vsize{% \vskip2cm \centerline{{\bf Chicago, Illinois, USA} $41^\circ$ $54'$ N, $87^\circ$ $39'$ W\hfil} \vskip1cm \line{\hskip 2cm\epsffile{sundl_02.6}\hss} \vskip2cm \line{\hskip 2cm{\bf Parallel projection onto the vertical plane} (plane of $r_1$)\hfil} \line{\hskip 2cm Vertical dial facing due south\hfil} \line{\hskip 2cm Latitude $41^\circ$ $54'$ N (Chicago, Illinois, USA)\hfil} \vss} \vfil\eject \vbox to \vsize{% \vskip2cm \centerline{{\bf Chicago, Illinois, USA} $41^\circ$ $54'$ N, $87^\circ$ $39'$ W\hfil} \vskip1cm \line{\hskip 0cm\epsffile{sundl_02.7}\hss} \vskip2cm \line{\hskip 2cm{\bf Parallel projection onto the horizontal plane} (plane of $r_6$)\hfil} \line{\hskip 2cm Horizontal dial\hfil} \line{\hskip 2cm Latitude $41^\circ$ $54'$ N (Chicago, Illinois, USA)\hfil} \vss} \vfil\eject %% **** (4) London \vbox to \vsize{% \vskip1cm \centerline{{\bf London, UK} $51^\circ$ $30'$ $28''$ N, $0^\circ$ $7'$ $41''$ W\hfil} \vskip1cm \line{\hskip1cm\epsffile{sundl_02.8}\hss} \vskip1cm \line{\hskip 2cm{\bf Perspective projection}\hfil} \line{\hskip 2cm Latitude $51^\circ$ $30'$ $28''$ N (London, UK)\hfil} \line{\hskip 2cm Focus: $\rm{position} = (0, 5, -12)$, % $\rm{direction} = (0, 5, 10)$, % $\rm{distance} = 10$\hfil} \line{\hskip 2cm (dimensions in centimeters)\hfil} \vss } \vfil\eject \vbox to \vsize{% \vskip2cm \centerline{{\bf London, UK} $51^\circ$ $30'$ $28''$ N, $0^\circ$ $7'$ $41''$ W\hfil} \vskip1cm \line{\hskip 2cm\epsffile{sundl_02.9}\hss} \vskip2cm \line{\hskip 2cm{\bf Parallel projection onto the vertical plane} (plane of $r_1$)\hfil} \line{\hskip 2cm Vertical dial facing due south\hfil} \line{\hskip 2cm Latitude $51^\circ$ $30'$ $28''$ N (London, UK)\hfil} \vss} \vfil\eject \vbox to \vsize{% \vskip2cm \centerline{{\bf London, UK} $51^\circ$ $30'$ $28''$ N, $0^\circ$ $7'$ $41''$ W\hfil} \vskip1cm \line{\hskip 0cm\epsffile{sundl_02.10}\hss} \vskip2cm \line{\hskip 2cm{\bf Parallel projection onto the horizontal plane} (plane of $r_6$)\hfil} \line{\hskip 2cm Horizontal dial\hfil} \line{\hskip 2cm Latitude $51^\circ$ $30'$ $28''$ N (London, UK)\hfil} \vss} \vfil\eject %% **** (4) Goettingen 51 deg. 32' N, 9 deg. 56' E \vbox to \vsize{% \vskip1cm \centerline{{\bf G{\"o}ttingen, Germany} $51^\circ$ $32'$ N, $9^\circ$ $56'$ E\hfil} \vskip1cm \line{\hskip1cm\epsffile{sundl_02.1}\hss} \vskip1cm \line{\hskip 2cm{\bf Perspective projection}\hfil} \line{\hskip 2cm Latitude $51^\circ$ $32'$ N (G{\"o}ttingen, Germany)\hfil} \line{\hskip 2cm Focus: $\rm{position} = (0, 5, -12)$, % $\rm{direction} = (0, 5, 10)$, % $\rm{distance} = 10$\hfil} \line{\hskip 2cm (dimensions in centimeters)\hfil} \vss } \vfil\eject \vbox to \vsize{% \vskip2cm \centerline{{\bf G{\"o}ttingen, Germany} $51^\circ$ $32'$ N, $9^\circ$ $56'$ E\hfil} \vskip1cm \line{\hskip 2cm\epsffile{sundl_02.3}\hss} \vskip2cm \line{\hskip 2cm{\bf Parallel projection onto the vertical plane} (plane of $r_1$)\hfil} \line{\hskip 2cm Vertical dial facing due south\hfil} \line{\hskip 2cm Latitude $51^\circ$ $32'$ N (G{\"o}ttingen, Germany)\hfil} \vss} \vfil\eject \vbox to \vsize{% \vskip2cm \centerline{{\bf G{\"o}ttingen, Germany} $51^\circ$ $32'$ N, $9^\circ$ $56'$ E\hfil} \vskip1cm \line{\hskip 0cm\epsffile{sundl_02.4}\hss} \vskip2cm \line{\hskip 2cm{\bf Parallel projection onto the horizontal plane} (plane of $r_6$).\hfil} \line{\hskip 2cm Horizontal dial\hfil} \line{\hskip 2cm Latitude $51^\circ$ $32'$ N (G{\"o}ttingen, Germany)\hfil} \vss} \vfil\eject %% **** (4) End here. \bye %% * (1) Local variables for Emacs. %% Local Variables: %% mode:plain-TeX %% outline-regexp:"%% [*\f]+" %% End: