On 12:29 PM 14/05/2001 -0700, Abd ul-Rahman Lomax said:
>At 08:55 AM 5/14/01 -0700, Brad Velander wrote:
>
>> Seems that all of this comes about because of 'someone's' statement
>>telling me I was wrong when I told someone else that there was an method by
>>which Protel matched symbols and parts beyond reference designators.
>
>It used to be true. I believe the change came in with Protel 99. I'm still
>not satisfied that we have the whole story; I'm particularly interested to
>see what is in the ASCII PCB database for matched components. A project
>for a rainy day.
>
>
>[EMAIL PROTECTED]
>Abdulrahman Lomax
Good point. I just tested - linkage is lost when an ASCII file is exported
- this raises another possible solution. Simply save as ASCII and then
re-run the synchroniser and apply the component match.
You can see the handles if you export as spreadsheet - the handle is hidden
away in the invisible 'B' column for Sch, and is not hidden for PCB exports.
It looks like I might have been wrong about it being a simple 32bit integer
- I suspect that the Protel programmers sit there and giggle at my
speculation. I just compared the handles for the components on a linked
sch and PCB and they are different. So there may be a hidden table
somewhere or something that maintains the mapping. I will not speculate
more. I would like to know more about the implementation - Protel CSC can
you give us anything?
Ian
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