Mailing list archives : pcb-rnd

ID:4816
From:rn...@igor2.repo.hu
Date:Thu, 15 Apr 2021 18:04:57 +0200 (CEST)
Subject:Re: [pcb-rnd] feature removal RFC: the pscalib action
in-reply-to:4814 from Bob Paddock <gr...@gmail.com>
replies: 4818 from Bob Paddock <gr...@gmail.com>
Hi Bob,
 
On Thu, 15 Apr 2021, Bob Paddock wrote:
 
>>wanted to ask the user to measure, enter the size and then
>> get everything calculated and retested - in multiple iterations if needed.
>> It just never got finished I think.
>
>Going by very hazy memory the intent was that you could get a X:1
>output on a Postscript printer, a Xerox in my case, that could be used
>with transparent film and UV sensitised boards.
>
>Each printer/paper(transparency)  combo distorts measurements in its
>own unique way, hence the measure repeat cycle, to get ture X:1
>scaling.
 
 
Thanks for the historical insight! It's always nice to learn ever little 
piece of the puzzle before a decision.
 
I think the iterative/interactive part never got implemented or at least 
never got into the official VCS. I see some provisions in the code and 
API, but no trace of complete implementation ever.
 
I think I am going to remove this part: manual calibration is still 
possible, and if someone needs an automated process, we can easily write 
an user script for that, that doesn't have to be ps-specific.
 
Best regards,
 
Igor2
 
 

Reply subtree:
4816 Re: [pcb-rnd] feature removal RFC: the pscalib action from rn...@igor2.repo.hu
  4818 Re: [pcb-rnd] feature removal RFC: the pscalib action from Bob Paddock <gr...@gmail.com>