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<div id="AOLMsgPart_0_300203ad-820d-4f2f-92ab-8d281dae6c94" class="AOLPlainTextBody"><pre><tt><br>
>this message ends with a latex document, that approximates the cooling<br>
>towers.<br>
>Compare the output to your image:<br>
<a href="http://syracuse.eu.org/%7Ejms/photos/2006/0813-civaux1/presentations/IMG_1183a.jpg.html" target="_blank">>http://syracuse.eu.org/~jms/photos/2006/0813-civaux1/presentations/IMG_1183a.jpg.html</a><br>
<br>
>Best regards<br>
>Hans-Juergen Salchow<br>
<br>
>\documentclass{article}<br>
>\usepackage{pstricks}<br>
>\begin{document}<br>
>\psset{unit=.1mm}<br>
>\begin{center}<br>
>\begin{pspicture}(-330,-160)(330,-985)<br>
>%%%% sides<br>
>\psbezier(211,-197)(192,-493)(197,-583)(329,-973)<br>
>\psbezier(-211,-197)(-192,-493)(-197,-583)(-329,-973)<br>
>%%%% bottom and top<br>
>\psellipticarc(0,-973)(329,-11){0}{180}<br>
>\psellipticarc(0,-197)(211,29){0}{180}<br>
>\psellipticarc(0,-195)(217,36){-10}{190}<br>
>\end{pspicture}<br>
>\end{center}<br>
>\end{document}<br>
<br>
<br>
</tt><tt><tt>Hans,<br>
<br>
</tt></tt><tt>Modeling is very convincing for this point of view! But for another point of view? <br>
It is well a hyperboloid of revolution for reasons of construction <br>
(facilitated reinforcement iron framework of the tower) but it would be necessary <br>
to have more information in the plans of the tower. <br>
<br>
</tt><tt><tt>Best regards<br>
M.L.</tt></tt><br>
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</tt></pre>
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