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_posts/2024-04-01-Bourbaki.md

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+---
+layout: post
+title: "Welcome: Nicolas Bourbaki"
+description: "The end of egoless programming."
+category: "news"
+tags: []
+---
+{% include JB/setup %}
+
+<p>The CGAL Editorial Board was invited by <a href="https://www.accenture.com/fr-fr">Accenture France</a>
+to perform a self-assessment.
+This one week workshop in a monastery in the Maritime Alps was a unique experience, and it came
+to us as the price of the <em>SoCG Test of Time Award</em> the CGAL Project received last June.
+The workshop led to the insight that to attact even more brillant people than today,
+we have to give up our egoless programming culture, which, ironically, had been
+promoted by the same consulting firm around the year 2000.</p>
+
+<p>While it is true that developers are listed as authors of the Manual chapters
+the discussion with the bahavioral psychologists of Accenture made us understand
+that people expect much more recognition. So do not be surprised when in CGAL 6.0
+you will encounter the `CGAL::Hyperbolic_Teillaud_diagram_2` as well as the  CGAL::Oesau_graph_3`.
+</p>
+
+<br>
+<h3>Welcome Nicolas Bourbaki</h3>
+
+<p>In the workshop we also learned that we have to develop a <em>Welcome Culture</em>
+which puts new developers in the spot light, even before they have made a first contribution.
+We will do a better job for our 2024 Google Summmer of Code students, but let's start
+with <em>Nicolas Bourbaki</em>, who currently works at <em>Ecole Normale Superieure</em> in Paris.</p>
+
+<p>Nicolas first contribution will be a <em>Curves and Surfaces</em> package,
+featuring the <a href="https://mathcurve.com/courbes2d.gb/oeuf/oeuf.shtml">Huegelschaeffer Egg</a>
+and the <a href="https://mathcurve.com/courbes2d.gb/conchoiddecercle/conchoiddecercle.shtml"Conchoid</a> curve, as well as the <a href="https://mathcurve.com/surfaces/seifert/seifert.shtml">Seifert</a> surface.</p>
+
+
+<div style="text-align:center;">
+  <a href="../../../../../images/April24/huegelschaeffer.gif"><img src="../../../../../images/April24/huegelschaeffer.gif" style="max-width:85%"/></a><br>
+  <br><small>The Huegelschaeffer egg curve.</small>
+</div>
+
+<p>These curves and surfaces may seem of only theoretical interest which, however, is completely wrong.
+The conchoid is strongly related to the study of linkages of autonomous humanoid robotics,
+while the Seifert surface led to the invention of the
+<a href="https://www.youtube.com/watch?v=SwkWP--UQFA">Quechua 2</a> tent made by Decathlon.</p>
+
+
+<h3>Back to the Physical World</h3>
+
+<p>While a <a href="https://www.cgal.org/people.html">People</p> web page is a nice living document
+we decided to produce a <em>physical twin</em> with portrait photos not made with an iphone
+but by a portrait photograph. We are grateful to the Inria research center in Sophia-Antipolis
+offering a physical wall in the Gilles Kahn Auditorium for hosting the CGAL Editorial Board Gallery.

index.html

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+      <li style="background-image: url({{ BASE_PATH }}/images/April24/egg-in-pentagon.png); -webkit-background-size: cover; -moz-background-size: cover; -o-background-size: cover; background-size: cover;">
         <h2 class="title">Boolean Operations</h2>
         <h3 class="subtitle"><pre style='text-shadow:none'>CGAL::corefine_and_compute_boolean_operations(statue, container);</pre></h3>
       </li>
 
-      <li style="background-image: url({{ BASE_PATH }}/images/alpha_wrap.png); -webkit-background-size: cover; -moz-background-size: cover; -o-background-size: cover; background-size: cover;">
+      <li style="background-image: url({{ BASE_PATH }}/images/April24/Finite_coxeter.svg.png); -webkit-background-size: cover; -moz-background-size: cover; -o-background-size: cover; background-size: cover;">
         <h2 class="title">Wrapping</h2>
         <h3 class="subtitle"><pre style='text-shadow:none'>CGAL::alpha_wrap();</pre></h3>
       </li>
 
-      <li style="background-image: url({{ BASE_PATH }}/images/ToS2porto.png); -webkit-background-size: cover; -moz-background-size: cover; -o-background-size: cover; background-size: cover;">
+      <li style="background-image: url({{ BASE_PATH }}/images/April24/tencommandments.jpeg); -webkit-background-size: cover; -moz-background-size: cover; -o-background-size: cover; background-size: cover;">
         <h2 class="title">Triangulations</h2>
         <h3 class="subtitle"><pre style='text-shadow:none'>CGAL::make_triangulation();</pre></h3>
       </li>
 
-      <li style="background-image: url({{ BASE_PATH }}/images/aabb_tree.png); -webkit-background-size: cover; -moz-background-size: cover; -o-background-size: cover; background-size: cover;">
+      <li style="background-image: url({{ BASE_PATH }}/images/April24/tradebalance.png); -webkit-background-size: cover; -moz-background-size: cover; -o-background-size: cover; background-size: cover;">
         <h2 class="title">Axis Aligned Bounding Box Tree</h2>
         <h3 class="subtitle"><pre style='text-shadow:none'>CGAL::AABB_tree tree(faces(surface_mesh));</pre></h3>
       </li>
-
+<!--
       <li style="background-image: url({{ BASE_PATH }}/images/octo_0.png); -webkit-background-size: cover; -moz-background-size: cover; -o-background-size: cover; background-size: cover;">
         <h2 class="title">The Heat Method</h2>
         <h3 class="subtitle"><pre style='text-shadow:none'>CGAL::Heat_method_3::estimate_geodesic_distances();</pre></h3>
@@ -50,7 +50,7 @@ <h2 class="title">Periodic Mesh Generation</h2>
         <h3 class="subtitle"><pre style='text-shadow:none'>CGAL::Periodic_tet_mesh mesh = CGAL::make_periodic_mesh();</pre></h3>
       </li>
 
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+
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         <h2 class="title">Voronoi Diagram</h2>
         <h3 class="subtitle"><pre style='text-shadow:none'>VD = CGAL::make_voronoi(points);</pre></h3>
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