{"id":480,"date":"2020-04-20T15:40:43","date_gmt":"2020-04-20T13:40:43","guid":{"rendered":"http:\/\/3d-realite-virtuelle.com\/?p=480"},"modified":"2025-12-08T12:03:32","modified_gmt":"2025-12-08T11:03:32","slug":"du-nuage-de-points-a-la-maquette-numerique-bim","status":"publish","type":"post","link":"https:\/\/3d-realite-virtuelle.com\/index.php\/2020\/04\/20\/du-nuage-de-points-a-la-maquette-numerique-bim\/","title":{"rendered":"Nuage de points : la base essentielle pour mod\u00e9liser, mesurer et documenter un b\u00e2timent"},"content":{"rendered":"\n<p>Le relev\u00e9 3D est devenu incontournable pour concevoir une maquette num\u00e9rique BIM, pr\u00e9parer une r\u00e9novation ou documenter un b\u00e2timent existant. Gr\u00e2ce au scanner 3D, nous capturons rapidement un <strong>nuage de points<\/strong> pr\u00e9cis, complet et exploitable par les architectes, bureaux d\u2019\u00e9tudes et professionnels du b\u00e2timent.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">ACQUISITION DU NUAGE DE POINTS<\/h2>\n\n\n\n<p>Il existe deux m\u00e9thodes principales pour relever un b\u00e2timent.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">M\u00e9thode classique<\/h3>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"636\" height=\"401\" src=\"http:\/\/3d-realite-virtuelle.com\/wp-content\/uploads\/2020\/04\/Releve-sur-site.jpg\" alt=\"\" class=\"wp-image-481\" srcset=\"https:\/\/3d-realite-virtuelle.com\/wp-content\/uploads\/2020\/04\/Releve-sur-site.jpg 636w, https:\/\/3d-realite-virtuelle.com\/wp-content\/uploads\/2020\/04\/Releve-sur-site-300x189.jpg 300w, https:\/\/3d-realite-virtuelle.com\/wp-content\/uploads\/2020\/04\/Releve-sur-site-600x378.jpg 600w\" sizes=\"auto, (max-width: 636px) 100vw, 636px\" \/><figcaption class=\"wp-element-caption\">Exemple de relev\u00e9s sur site<\/figcaption><\/figure>\n\n\n\n<p>R\u00e9alis\u00e9e \u00e0 l\u2019aide d\u2019outils classiques :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>m\u00e8tre ruban<\/li>\n\n\n\n<li>t\u00e9l\u00e9m\u00e8tre laser<\/li>\n\n\n\n<li>croquis annot\u00e9s manuellement<\/li>\n<\/ul>\n\n\n\n<p>Bien que peu co\u00fbteuse, cette approche pr\u00e9sente plusieurs limites :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>pr\u00e9cision limit\u00e9e.<\/li>\n\n\n\n<li>temps sur site important,<\/li>\n\n\n\n<li>prise de notes fastidieuse,<\/li>\n\n\n\n<li>risque \u00e9lev\u00e9 d\u2019erreurs ou d\u2019oublis,<\/li>\n<\/ul>\n\n\n\n<p><\/p>\n\n\n\n<h3 class=\"wp-block-heading\">M\u00e9thode par scanner 3D<\/h3>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"678\" height=\"454\" src=\"http:\/\/3d-realite-virtuelle.com\/wp-content\/uploads\/2020\/04\/PEPINIERE-LE-FAISCEAU-SUD-1.jpg\" alt=\"\" class=\"wp-image-483\" srcset=\"https:\/\/3d-realite-virtuelle.com\/wp-content\/uploads\/2020\/04\/PEPINIERE-LE-FAISCEAU-SUD-1.jpg 678w, https:\/\/3d-realite-virtuelle.com\/wp-content\/uploads\/2020\/04\/PEPINIERE-LE-FAISCEAU-SUD-1-300x201.jpg 300w, https:\/\/3d-realite-virtuelle.com\/wp-content\/uploads\/2020\/04\/PEPINIERE-LE-FAISCEAU-SUD-1-600x402.jpg 600w\" sizes=\"auto, (max-width: 678px) 100vw, 678px\" \/><figcaption class=\"wp-element-caption\">Nuage de points visualis\u00e9s dans Autodesk Recap Pro<\/figcaption><\/figure>\n\n\n\n<p>Le <strong>scanner laser 3D<\/strong> permet d\u2019acqu\u00e9rir un relev\u00e9 complet en un minimum de temps.<br>Le r\u00e9sultat : un <strong>nuage de points<\/strong> haute densit\u00e9, g\u00e9or\u00e9f\u00e9renc\u00e9 et extr\u00eamement pr\u00e9cis.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Ses avantages :<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>acquisition rapide<\/li>\n\n\n\n<li>tr\u00e8s grande pr\u00e9cision<\/li>\n\n\n\n<li>aucune zone oubli\u00e9e<\/li>\n\n\n\n<li>collaboration facilit\u00e9e<\/li>\n\n\n\n<li>possibilit\u00e9 de revisiter le site virtuellement, \u00e0 tout moment<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Pourquoi le nuage de points est indispensable<\/h2>\n\n\n\n<p>Le nuage de points ne se limite pas au relev\u00e9 :<br>\ud83d\udc49 <strong>il \u00e9vite les retours sur site<\/strong><br>\ud83d\udc49 <strong>il sert de base fiable pour mod\u00e9liser en 2D ou 3D<\/strong><br>\ud83d\udc49 <strong>il garantit la pr\u00e9cision des \u00e9tudes<\/strong><\/p>\n\n\n\n<p>Depuis plus de 3 ans, l\u2019ensemble de nos relev\u00e9s de b\u00e2timents sont r\u00e9alis\u00e9s exclusivement via le scan 3D.<br>Cette technologie est aujourd\u2019hui la m\u00e9thode la plus fiable pour documenter un ouvrage.<\/p>\n\n\n\n<figure class=\"wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<div class='embed-container'><iframe loading=\"lazy\" title=\"NUAGE DE POINTS DANS AUTODESK RECAP PRO\" width=\"1920\" height=\"1080\" src=\"https:\/\/www.youtube.com\/embed\/rS8r-hYCvno?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe><\/div>\n<\/div><figcaption class=\"wp-element-caption\">Pr\u00e9sentation des fonctionnalit\u00e9s Autodesk Recap Pro sur un nuage de points<\/figcaption><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">Nuage de points \u2260 BIM, mais base du BIM<\/h2>\n\n\n\n<p>Le nuage de points <strong>n\u2019est pas<\/strong> une maquette num\u00e9rique BIM.<br>Il en constitue <strong>la base la plus pr\u00e9cise<\/strong>.<\/p>\n\n\n\n<p>\u00c0 partir du nuage de points, nous pouvons produire :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>des plans 2D (DWG \/ PDF)<\/li>\n\n\n\n<li>des maquettes 3D IFC ou Revit<\/li>\n\n\n\n<li>des mod\u00e8les g\u00e9om\u00e9triques simplifi\u00e9s ou d\u00e9taill\u00e9s<\/li>\n\n\n\n<li>des extraits pour \u00e9tudes structurelles ou thermiques<\/li>\n<\/ul>\n\n\n\n<p>Certains logiciels comme <strong>Autodesk Recap Pro<\/strong> permettent d\u00e9j\u00e0 :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>des s\u00e9lections d\u2019\u00e9l\u00e9ments,<\/li>\n\n\n\n<li>des filtres,<\/li>\n\n\n\n<li>des quantifications,<\/li>\n\n\n\n<li>des mesures pr\u00e9cises.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Pour qui ?<\/strong><\/h2>\n\n\n\n<p>L\u2019absence de plans fiables est un probl\u00e8me courant pour :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>ma\u00eetres d\u2019ouvrage<\/li>\n\n\n\n<li>architectes<\/li>\n\n\n\n<li>bureaux d\u2019\u00e9tudes<\/li>\n\n\n\n<li>entreprises du b\u00e2timent<\/li>\n\n\n\n<li>gestionnaires de patrimoine<\/li>\n\n\n\n<li>agences immobili\u00e8res<\/li>\n<\/ul>\n\n\n\n<p>Le nuage de points apporte une base solide, pr\u00e9cise et exploitable pour :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>r\u00e9novations,<\/li>\n\n\n\n<li>analyses de faisabilit\u00e9,<\/li>\n\n\n\n<li>\u00e9tudes \u00e9nerg\u00e9tiques,<\/li>\n\n\n\n<li>calculs de structure,<\/li>\n\n\n\n<li>documentation de sites,<\/li>\n\n\n\n<li>mod\u00e9lisation BIM.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Conclusion<\/h2>\n\n\n\n<p>Le nuage de points est <strong>la premi\u00e8re \u00e9tape indispensable<\/strong> pour mod\u00e9liser un b\u00e2timent avec pr\u00e9cision.<br>Gr\u00e2ce au scan 3D, vous disposez d\u2019une repr\u00e9sentation fid\u00e8le du r\u00e9el, exploitable par tous les acteurs d\u2019un projet.<\/p>\n\n\n\n<p>\ud83d\udc49 Contactez-nous pour transformer vos b\u00e2timents en donn\u00e9es 3D fiables et pr\u00eates \u00e0 l\u2019\u00e9tude.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Le nuage de points constitue la premi\u00e8re \u00e9tape vers la maquette num\u00e9rique. Il est r\u00e9alis\u00e9 \u00e0 partir d&rsquo;un scanner 3D sur site. Nous vous expliquons \u00e0 quoi \u00e7a sert et comment cela fonctionne.<\/p>\n","protected":false},"author":2,"featured_media":489,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[21],"tags":[74,82,39,53,83,51,79,68,81,72,23,40,28,84,80,34,43,73,33,67,78,75,42,66],"class_list":["post-480","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-bim","tag-architecture","tag-autodesk-recap","tag-bim","tag-btp","tag-capture-de-realite","tag-construction","tag-donnees-3d","tag-etude-technique","tag-ifc","tag-laser-scanning","tag-lidar","tag-maquette-numerique","tag-modelisation-3d","tag-modelisation-batiment","tag-modelisation-bim","tag-nuage-de-points","tag-plans-2d","tag-precision-3d","tag-releve-3d","tag-releve-architectural","tag-releve-batiment","tag-renovation","tag-revit","tag-scan-3d"],"jetpack_featured_media_url":"https:\/\/3d-realite-virtuelle.com\/wp-content\/uploads\/2020\/04\/Maquette-BIM.jpg","_links":{"self":[{"href":"https:\/\/3d-realite-virtuelle.com\/index.php\/wp-json\/wp\/v2\/posts\/480","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/3d-realite-virtuelle.com\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/3d-realite-virtuelle.com\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/3d-realite-virtuelle.com\/index.php\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/3d-realite-virtuelle.com\/index.php\/wp-json\/wp\/v2\/comments?post=480"}],"version-history":[{"count":7,"href":"https:\/\/3d-realite-virtuelle.com\/index.php\/wp-json\/wp\/v2\/posts\/480\/revisions"}],"predecessor-version":[{"id":628,"href":"https:\/\/3d-realite-virtuelle.com\/index.php\/wp-json\/wp\/v2\/posts\/480\/revisions\/628"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/3d-realite-virtuelle.com\/index.php\/wp-json\/wp\/v2\/media\/489"}],"wp:attachment":[{"href":"https:\/\/3d-realite-virtuelle.com\/index.php\/wp-json\/wp\/v2\/media?parent=480"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/3d-realite-virtuelle.com\/index.php\/wp-json\/wp\/v2\/categories?post=480"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/3d-realite-virtuelle.com\/index.php\/wp-json\/wp\/v2\/tags?post=480"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}