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Date: | Mon, 16 Jul 2012 15:43:50 -0700 |
From: | Colin D Bennett <colin AT gibibit DOT com> |
To: | geda-user AT delorie DOT com |
Subject: | Re: [geda-user] Merge layers during print |
Message-ID: | <20120716154350.73f9084f@svelte> |
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On Mon, 16 Jul 2012 11:21:56 -0700 Russell Dill <Russ DOT Dill AT asu DOT edu> wrote: > On Mon, Jul 16, 2012 at 10:41 AM, Colin D Bennett > <colin AT gibibit DOT com> wrote: > > On Mon, 16 Jul 2012 09:44:20 -0700 > > Russell Dill <Russ DOT Dill AT asu DOT edu> wrote: > > > >> So in my case I want a couple of holes in the paste stencil to > >> line up with a couple of unplated drills. So I make a new > >> layer, set skip-print to 1, and set merge to toppaste, then > >> add a couple of zero length traces that line up with the drill > >> holes. > > > > So the 'merge' feature is acting in a 'negative' way? Since the > > toppaste layer is where paste DOES go, you are drawing on the > > new layer and then SUBTRACTING this layer from the toppaste > > layer? On the other hand, your 'fab-notes' example suggests an > > additive method of merging. I didn't read all the code, but > > how is this achieved? > > The feature doesn't care, it depends on what the meaning of the > layer is. Both mask and paste are "negative" layers depending on > how you think about them. Drawing on the paste layer gives you > holes in the stencil, but thinking about it from a paste > perspective, gives you positive paste. OK, that's confusing since the exported gerber for 'paste' is drawn in positive, where 'paste' is displayed. It would be awesome if there was a way to merge both additive and subtractive edits with a layer. Maybe that's too much work, perhaps it's the 90/10 rule and your implementation already covers 90% of uses. Regards, Colin
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