X-Authentication-Warning: delorie.com: mail set sender to geda-user-bounces using -f X-Recipient: geda-user AT delorie DOT com DKIM-Signature: v=1; a=rsa-sha256; c=simple; d=mail.ud03.udmedia.de; h= mime-version:in-reply-to:references:content-type:message-id :content-transfer-encoding:from:subject:date:to; s=beta; bh=JKxP cnH+Z6Ds2/m7mXLsOoj+MVjTrdCaODAKppS5e4k=; b=vfBjyOcbNxDHeCmMRVgx DKyTvPBMV/Rp6Ur6jYq003lvjJqjcA8ZJPRzc5HyoctaJUk0EkRq6CLjJ45QBQda boUEllxjk6TJ/900UI+ZL5/ANOwdSSXtym/JhzRzUXAGO079bCIc9P2pFwjaeovj xP0ljQygX6X/p2fkOdHV5bM= Mime-Version: 1.0 (Apple Message framework v753.1) In-Reply-To: <51C48E65.10508@prochac.sk> References: <51B6CDB6 DOT 1010909 AT estechnical DOT co DOT uk> <51B6DB0E DOT 8000108 AT prochac DOT sk> <51BBA5E7 DOT 4040006 AT prochac DOT sk> <1371329763 DOT 11314 DOT 10 DOT camel AT pcjc2lap> <4DFFE27A-47A1-41DB-98CC-490E1AB6085A AT jump-ing DOT de> <20130617012721 DOT 01e56f87 AT akka> <51C48E65 DOT 10508 AT prochac DOT sk> Content-Type: text/plain; charset=US-ASCII; delsp=yes; format=flowed Message-Id: Content-Transfer-Encoding: 7bit From: Markus Hitter Subject: Re: [geda-user] 3D modelling and gEDA Date: Fri, 21 Jun 2013 20:28:18 +0200 To: geda-user AT delorie DOT com X-Mailer: Apple Mail (2.753.1) Reply-To: geda-user AT delorie DOT com Errors-To: nobody AT delorie DOT com X-Mailing-List: geda-user AT delorie DOT com X-Unsubscribes-To: listserv AT delorie DOT com Precedence: bulk Am 21.06.2013 um 19:33 schrieb Milan Prochac: > It seems that underlying libraries have serious problems with > boolean operations on objects with common edges or faces Boolean operations are indeed an extremely tricky business and all, up to the most expensive CAD tools, expose failures. The solution might be to simply not do boolean operations. You just loose the ability to render with proper edges, edge-less renderings will appear pretty much the same. Alternative could be to sort tracks/volumes by some algorithm to ensure these operations are always simple. For example, tracks could be merged before giving them Z height. Or they could be added in some geometrical order, so there is always only one intersection. Markus - - - - - - - - - - - - - - - - - - - Dipl. Ing. (FH) Markus Hitter http://www.jump-ing.de/