X-Authentication-Warning: delorie.com: mail set sender to geda-user-bounces using -f X-Recipient: geda-user AT delorie DOT com Message-ID: <53A7E8F0.8020905@philippklostermann.de> Date: Mon, 23 Jun 2014 10:44:32 +0200 From: Philipp Klostermann User-Agent: Mozilla/5.0 (Windows NT 5.1; rv:24.0) Gecko/20100101 Thunderbird/24.6.0 MIME-Version: 1.0 To: geda-user AT delorie DOT com Subject: Re: [geda-user] pcb: Patch for arcs with different radii for x and y on screen References: In-Reply-To: Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Reply-To: geda-user AT delorie DOT com Am 21.06.2014 14:30, schrieb Peter Clifton: > I'm a little disappointed to find people using elliptical arcs in the > wild. This all is just a hobby for me. :-D I like to design and work with footprints made with squared paper, a calcultor and vi. - And I like to make them look 'nice'. ;-) I'm aware, that showing the furrow that goes around a polarized wire-trough-hole capacitor on silkscreen is absolutely senseless from the technical point of view, but when I design some DIY-stuff to publish on my webpage, that may be built by people who haven't seen a capacitor before and who make their first pcb in the kitchen, this kind of visualization of the parts may help, for example, to distinguish between an inductor and a capacitor. > Am I right in thinking your use cases relate to silkscreen only, not > tracking or board outline? Yes. > Any thoughts? I only kind of know the gEDA formats. I've read the IDF-specs, yesterday, and I see that it's not trivial to exchange with them. It seems difficult to me, to find an import/export concept, that produces equal gEDA-Data by exporting to IDF an re-importing back to gEDA. I've often heard of, but don't know Gerber. Independent of the format, an export should always be possible, because one can render anything to a simple format like dots connected with lines (or short arcs with varying radii in IDF), but a re-import would not result back to the complex format. Am I seeing this right? Isn't this rather a general problem, not restricted to elliptical arcs? Regards, Philipp