{"id":1457,"date":"2023-10-09T10:32:04","date_gmt":"2023-10-09T08:32:04","guid":{"rendered":"https:\/\/pamo.ovh\/?page_id=1457"},"modified":"2024-01-11T18:22:04","modified_gmt":"2024-01-11T17:22:04","slug":"art-math","status":"publish","type":"page","link":"https:\/\/pamo.ovh\/index.php\/art-math\/","title":{"rendered":"Art &#038; Math"},"content":{"rendered":"\n<h3 class=\"has-text-align-left wp-block-heading\">Surface de Boy<\/h3>\n\n\n\n<p>La surface de Boy, imagin\u00e9e en 1902 par le math\u00e9maticien Werner Boy, peut \u00eatre consid\u00e9r\u00e9e comme une \u00e9tape du retournement de la sph\u00e8re.<\/p>\n\n\n\n<p>Plus de d\u00e9tails dans la Bd  <strong>Le Topologicon<\/strong> r\u00e9alis\u00e9e par Jean Pierre Petit (ancien Directeur de Recherche au Cnrs).<\/p>\n\n\n\n<p><\/p>\n\n\n\n<p>Il existe diff\u00e9rentes repr\u00e9sentations  de cette surface.  C&rsquo;est la repr\u00e9sentation propos\u00e9e par R. Bryant qui est utilis\u00e9e pour obtenir les surfaces ci-dessous. <\/p>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-1 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<h3 class=\"has-text-align-center wp-block-heading\">Surface de Boy<\/h3>\n\n\n\r\n        <div class=\"modelViewerBlock\" data-attributes='{&quot;align&quot;:&quot;center&quot;,&quot;uniqueId&quot;:&quot;model1531&quot;,&quot;currentViewer&quot;:&quot;O3DViewer&quot;,&quot;multiple&quot;:false,&quot;model&quot;:{&quot;modelUrl&quot;:&quot;https:\\\/\\\/pamo.ovh\\\/wp-content\\\/uploads\\\/2023\\\/12\\\/test_stl_ep_200_red.stl&quot;,&quot;poster&quot;:&quot;&quot;},&quot;O3DVSettings&quot;:{&quot;isFullscreen&quot;:true,&quot;isPagination&quot;:false,&quot;isNavigation&quot;:true,&quot;camera&quot;:null,&quot;mouseControl&quot;:true},&quot;models&quot;:[],&quot;lazyLoad&quot;:false,&quot;loading&quot;:&quot;auto&quot;,&quot;autoplay&quot;:false,&quot;shadow&quot;:true,&quot;autoRotate&quot;:true,&quot;zoom&quot;:true,&quot;isPagination&quot;:false,&quot;isNavigation&quot;:true,&quot;preload&quot;:&quot;auto&quot;,&quot;rotationPerSecond&quot;:&quot;30&quot;,&quot;mouseControl&quot;:true,&quot;fullscreen&quot;:true,&quot;variant&quot;:false,&quot;loadingPercentage&quot;:false,&quot;progressBar&quot;:true,&quot;rotate&quot;:false,&quot;rotateAlongX&quot;:&quot;0&quot;,&quot;rotateAlongY&quot;:&quot;75&quot;,&quot;exposure&quot;:&quot;1&quot;,&quot;styles&quot;:{&quot;width&quot;:&quot;100%&quot;,&quot;height&quot;:&quot;320px&quot;,&quot;bgColor&quot;:&quot;transparent&quot;,&quot;progressBarColor&quot;:&quot;&quot;},&quot;stylesheet&quot;:null,&quot;additional&quot;:{&quot;ID&quot;:&quot;&quot;,&quot;Class&quot;:&quot;&quot;,&quot;CSS&quot;:&quot;&quot;},&quot;animation&quot;:false,&quot;woo&quot;:false,&quot;selectedAnimation&quot;:&quot;&quot;}'><\/div>\r\n\r\n        \n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<h3 class=\"has-text-align-center wp-block-heading\">Partie sup\u00e9rieure<\/h3>\n\n\n\r\n        <div class=\"modelViewerBlock\" data-attributes='{&quot;align&quot;:&quot;center&quot;,&quot;uniqueId&quot;:&quot;model1573&quot;,&quot;currentViewer&quot;:&quot;O3DViewer&quot;,&quot;multiple&quot;:false,&quot;model&quot;:{&quot;modelUrl&quot;:&quot;https:\\\/\\\/pamo.ovh\\\/wp-content\\\/uploads\\\/2024\\\/01\\\/test_stl_ep_200_red_haut_roulis_neg_55.stl&quot;,&quot;poster&quot;:&quot;&quot;},&quot;O3DVSettings&quot;:{&quot;isFullscreen&quot;:true,&quot;isPagination&quot;:false,&quot;isNavigation&quot;:true,&quot;camera&quot;:null,&quot;mouseControl&quot;:true},&quot;models&quot;:[],&quot;lazyLoad&quot;:false,&quot;loading&quot;:&quot;auto&quot;,&quot;autoplay&quot;:false,&quot;shadow&quot;:true,&quot;autoRotate&quot;:true,&quot;zoom&quot;:true,&quot;isPagination&quot;:false,&quot;isNavigation&quot;:true,&quot;preload&quot;:&quot;auto&quot;,&quot;rotationPerSecond&quot;:&quot;30&quot;,&quot;mouseControl&quot;:true,&quot;fullscreen&quot;:true,&quot;variant&quot;:false,&quot;loadingPercentage&quot;:false,&quot;progressBar&quot;:true,&quot;rotate&quot;:false,&quot;rotateAlongX&quot;:&quot;0&quot;,&quot;rotateAlongY&quot;:&quot;75&quot;,&quot;exposure&quot;:&quot;1&quot;,&quot;styles&quot;:{&quot;width&quot;:&quot;100%&quot;,&quot;height&quot;:&quot;320px&quot;,&quot;bgColor&quot;:&quot;transparent&quot;,&quot;progressBarColor&quot;:&quot;&quot;},&quot;stylesheet&quot;:null,&quot;additional&quot;:{&quot;ID&quot;:&quot;&quot;,&quot;Class&quot;:&quot;&quot;,&quot;CSS&quot;:&quot;&quot;},&quot;animation&quot;:false,&quot;woo&quot;:false,&quot;selectedAnimation&quot;:&quot;&quot;}'><\/div>\r\n\r\n        \n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<h3 class=\"has-text-align-center wp-block-heading\">Partie inf\u00e9rieure<\/h3>\n\n\n\r\n        <div class=\"modelViewerBlock\" data-attributes='{&quot;align&quot;:&quot;center&quot;,&quot;uniqueId&quot;:&quot;model1554&quot;,&quot;currentViewer&quot;:&quot;O3DViewer&quot;,&quot;multiple&quot;:false,&quot;model&quot;:{&quot;modelUrl&quot;:&quot;https:\\\/\\\/pamo.ovh\\\/wp-content\\\/uploads\\\/2023\\\/12\\\/test_stl_ep_200_red_bas.stl&quot;,&quot;poster&quot;:&quot;&quot;},&quot;O3DVSettings&quot;:{&quot;isFullscreen&quot;:true,&quot;isPagination&quot;:false,&quot;isNavigation&quot;:true,&quot;camera&quot;:null,&quot;mouseControl&quot;:true},&quot;models&quot;:[],&quot;lazyLoad&quot;:false,&quot;loading&quot;:&quot;auto&quot;,&quot;autoplay&quot;:false,&quot;shadow&quot;:true,&quot;autoRotate&quot;:true,&quot;zoom&quot;:true,&quot;isPagination&quot;:false,&quot;isNavigation&quot;:true,&quot;preload&quot;:&quot;auto&quot;,&quot;rotationPerSecond&quot;:&quot;30&quot;,&quot;mouseControl&quot;:true,&quot;fullscreen&quot;:true,&quot;variant&quot;:false,&quot;loadingPercentage&quot;:false,&quot;progressBar&quot;:true,&quot;rotate&quot;:false,&quot;rotateAlongX&quot;:&quot;0&quot;,&quot;rotateAlongY&quot;:&quot;75&quot;,&quot;exposure&quot;:&quot;1&quot;,&quot;styles&quot;:{&quot;width&quot;:&quot;100%&quot;,&quot;height&quot;:&quot;320px&quot;,&quot;bgColor&quot;:&quot;transparent&quot;,&quot;progressBarColor&quot;:&quot;&quot;},&quot;stylesheet&quot;:null,&quot;additional&quot;:{&quot;ID&quot;:&quot;&quot;,&quot;Class&quot;:&quot;&quot;,&quot;CSS&quot;:&quot;&quot;},&quot;animation&quot;:false,&quot;woo&quot;:false,&quot;selectedAnimation&quot;:&quot;&quot;}'><\/div>\r\n\r\n        \n<\/div>\n<\/div>\n\n\n\n<p>Le fichier STL de la surface de Boy \u00e9paissies est g\u00e9n\u00e9r\u00e9 avec Matlab (code p. m.). La surface est ensuite d\u00e9coup\u00e9e \u00e0 l&rsquo;aide de 3D Builder.<\/p>\n\n\n\n<p><\/p>\n\n\n\n<p>La repr\u00e9sentation param\u00e9trique propos\u00e9e par R. Bryant fait correspondre aux diff\u00e9rents points d&rsquo;un disque les points de la surface de Boy.  Les coordonn\u00e9es polaires d&rsquo;un  point du disque sont le rayon <strong>ro<\/strong> et l&rsquo;angle <strong>t\u00e9ta<\/strong>. Le rayon varie de 0 \u00e0 1, l&rsquo;angle varie de 0 \u00e0 2 pi.<\/p>\n\n\n\n<p>L&rsquo;animation ci-dessous permet de modifier les valeurs minimales et maximales du rayon ro et de l&rsquo;angle t\u00e9ta et donc de s\u00e9lectionner une partie seulement du disque de rayon 1 et de voir la partie de la surface de Boy correspondante. <\/p>\n\n\n\n<p><\/p>\n\n\n\n<figure><iframe loading=\"lazy\" src=\"https:\/\/pamo.ovh\/EJS\/ejss_simu\/Math\/ejss_model_Surface_Boy_6\/Surface_Boy_6_Simulation.html\" scrolling=\"no\" width=\"100%\" height=\"650\"><\/iframe><\/figure>\n","protected":false},"excerpt":{"rendered":"<p>Surface de Boy La surface de Boy, imagin\u00e9e en 1902 par le math\u00e9maticien Werner Boy, peut \u00eatre consid\u00e9r\u00e9e comme une \u00e9tape du retournement de la sph\u00e8re. Plus de d\u00e9tails dans la Bd Le Topologicon r\u00e9alis\u00e9e par Jean Pierre Petit (ancien Directeur de Recherche au Cnrs). Il existe diff\u00e9rentes repr\u00e9sentations de cette surface. C&rsquo;est la repr\u00e9sentation<\/p>\n<footer class=\"entry-footer index-entry\">\n<div class=\"post-social pull-left\"><a href=\"https:\/\/www.facebook.com\/sharer\/sharer.php?u=https%3A%2F%2Fpamo.ovh%2Findex.php%2Fart-math%2F\" target=\"_blank\" class=\"social-icons\"><i class=\"fa fa-facebook\" aria-hidden=\"true\"><\/i><\/a><a href=\"https:\/\/twitter.com\/home?status=https%3A%2F%2Fpamo.ovh%2Findex.php%2Fart-math%2F\" target=\"_blank\" class=\"social-icons\"><i class=\"fa fa-twitter\" aria-hidden=\"true\"><\/i><\/a><a href=\"https:\/\/www.linkedin.com\/shareArticle?mini=true&#038;url=https%3A%2F%2Fpamo.ovh%2Findex.php%2Fart-math%2F&#038;title=Art+%26%23038%3B+Math\" target=\"_blank\" class=\"social-icons\"><i class=\"fa fa-linkedin\" aria-hidden=\"true\"><\/i><\/a><\/div>\n<p class=\"link-more\"><a href=\"https:\/\/pamo.ovh\/index.php\/art-math\/\" class=\"more-link\">Continue reading <span class=\"meta-nav\">\u2192<\/span><\/a><\/p>\n<\/footer>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"kt_blocks_editor_width":"","footnotes":""},"class_list":["post-1457","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/pamo.ovh\/index.php\/wp-json\/wp\/v2\/pages\/1457","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/pamo.ovh\/index.php\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/pamo.ovh\/index.php\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/pamo.ovh\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/pamo.ovh\/index.php\/wp-json\/wp\/v2\/comments?post=1457"}],"version-history":[{"count":67,"href":"https:\/\/pamo.ovh\/index.php\/wp-json\/wp\/v2\/pages\/1457\/revisions"}],"predecessor-version":[{"id":1589,"href":"https:\/\/pamo.ovh\/index.php\/wp-json\/wp\/v2\/pages\/1457\/revisions\/1589"}],"wp:attachment":[{"href":"https:\/\/pamo.ovh\/index.php\/wp-json\/wp\/v2\/media?parent=1457"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}