| ID: | 3281 |
| From: | ge...@igor2.repo.hu |
| Date: | Sun, 18 Aug 2019 14:25:17 +0200 (CEST) |
| Subject: | Re: [pcb-rnd] pcblib: parametric footprint script switchover: |
| in-reply-to: | 3280 from Gabriel Paubert <pa...@iram.es> |
Hi Gabriel, On Sun, 18 Aug 2019, Gabriel Paubert wrote: >> 1. if there is a per footprint generator script value, we are going to use >> that >> >> 2. else if there's an absolute value (pad_mask, pin_mask) for the paste >> thickness, we use that > >s/paste thickness/solder mask opening/ Yup, sorry, it was a copy&paste error. >So a single "-" cancels (makes undefined or unspecified) an existing >parameter, this may be a valid convention (especially for numeric >parameters), but how generic is this? Not generic at the moment, it only works for the absolute value mask and paste defaults (pin_mask, pad_mask and pad_paste). Without the -, it is generic (within the pcblib parametrics): you can cancel any default that way, effectively overwriting them with an empty string. I've added a special case "-" for the paste/mask logic to make cancellation more explicit. Normally you wouldn't want to cancel other defaults. As far as I know this paste/mask case is the first and only one where this matters. Normally you would just overwrite the value with a new value. Cancellation makes sense when we have alternative parameters for the same thing and paste/mask value/offs/ratio is the first such thing in pcblib. Regards, Igor2
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3281 Re: [pcb-rnd] pcblib: parametric footprint script switchover: from ge...@igor2.repo.hu