[pstricks] Re : Re : pst-vue3D: two examples a bezier approximation.

[mluque5130 at aol.com]

>this message ends with a latex document, that approximates the cooling

>towers.

>Compare the output to your image:

>http://syracuse.eu.org/~jms/photos/2006/0813-civaux1/presentations/IMG_1183a.jpg.html



>Best regards

>Hans-Juergen Salchow



>\documentclass{article}

>\usepackage{pstricks}

>\begin{document}

>\psset{unit=.1mm}

>\begin{center}

>\begin{pspicture}(-330,-160)(330,-985)

>%%%% sides

>\psbezier(211,-197)(192,-493)(197,-583)(329,-973)

>\psbezier(-211,-197)(-192,-493)(-197,-583)(-329,-973)

>%%%% bottom and top

>\psellipticarc(0,-973)(329,-11){0}{180}

>\psellipticarc(0,-197)(211,29){0}{180}

>\psellipticarc(0,-195)(217,36){-10}{190}

>\end{pspicture}

>\end{center}

>\end{document}





Hans,



Modeling is very convincing for this point of view! But for another point of view? 

It is well a hyperboloid of revolution for reasons of construction 

(facilitated reinforcement iron framework of the tower) but it would be necessary 

to have more information in the plans of the tower. 



Best regards

M.L.


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