{"id":55830,"date":"2022-03-10T05:33:45","date_gmt":"2022-03-10T10:33:45","guid":{"rendered":"http:\/\/pappp.net\/?guid=99681c6085d742bf5fa7ebd3f772fda9"},"modified":"2022-03-10T05:33:45","modified_gmt":"2022-03-10T10:33:45","slug":"cad-cam-constraint-based-geometry-sketcher-for-blender","status":"publish","type":"post","link":"https:\/\/pappp.net\/?p=55830","title":{"rendered":"CAD\/CAM constraint-based geometry sketcher for Blender"},"content":{"rendered":"<p class=\"syndicated-attribution\">Source: <a href=\"https:\/\/github.com\/hlorus\/geometry_sketcher\">Hacker News<\/a><\/p>\n<div style=\"background-color : #fff7d5;\n\t\t\tborder-width : 1px; padding : 5px; border-style : dashed; border-color : #e7d796;margin-bottom : 1em; color : #9a8c59;\">Article note: It's sort of shocking how much of a hard problem generalized parametric CAD is, both in the algorithmic and user perspective.  The SolveSpace+Blender arrangement here actually seems reasonably pleasant.  \n\nAlso, from the comments, I didn't realize the commercial offerings were almost all front-ends to the same set of kernels, D-Cubed 2D DCM for 2D constraint solving, and either Parasolid or ACIS (or, for Autodesk, a fork of an old version of ACIS) for the geometric kernel.  A couple of the small and\/or open source players are using different parts, but the big players are basically hyper-specialized chrome.<\/div><a href=\"https:\/\/news.ycombinator.com\/item?id=30625341\" rel=\"noopener noreferrer\">Comments<\/a>","protected":false},"excerpt":{"rendered":"<p>Comments<\/p>\n<p> <a href=\"https:\/\/pappp.net\/?p=55830\">Continue reading <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[226],"tags":[],"class_list":["post-55830","post","type-post","status-publish","format-standard","hentry","category-news-2"],"_links":{"self":[{"href":"https:\/\/pappp.net\/index.php?rest_route=\/wp\/v2\/posts\/55830","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/pappp.net\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/pappp.net\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/pappp.net\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/pappp.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=55830"}],"version-history":[{"count":0,"href":"https:\/\/pappp.net\/index.php?rest_route=\/wp\/v2\/posts\/55830\/revisions"}],"wp:attachment":[{"href":"https:\/\/pappp.net\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=55830"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/pappp.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=55830"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/pappp.net\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=55830"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}