Re: gEDA-user: [RFC 5/6] Use of X server clipboard

[Kai-Martin Knaak <kmk@xxxxxxxxxxxxxxx>]

On Sat, 17 Jan 2009 18:54:17 +0000, Peter Clifton wrote:

>> Transfer of selection between schematics and layout seems an easier
>> task and would be very helpful. I used this a lot with protel95.

> Did you mean cross-probing by "transfer of selection"?

Yes, cross-probing of whole groups of symbols. 


> That is possible too, but still requires a project level overview of how
> the netlister will transform refdes and netnames etc..

Sure. This means, the netlister has to be involved in the action. 

 
> Perhaps you could elaborate what Protel95 allows you to transfer.

You select some symbols in the schematic and press a magic button. In the 
layout tool all the footprints that correspond to selected symbols will 
be selected. This is very useful during placement of analog circuits. 
Select a functional block in the schematics and the magic button allows 
to pick the corresponding components from the pile. 
With a layout that contains 500+ parts every means to divide and conquer 
the initial pile is welcome.

Currently, I do this manually --- Look at the schematic, compile a list 
of refdeses, munge them in my head and write the list into the select-by-
name dialog of pcb. 


> Please
> bear in mind that until a lot of other work is done in gEDA, transfer
> between apps which needs to know your workflow is not going to happen!

The workflow of cross-probing might be implemented similar to the way 
parts are placed in the layout in the first place:

1) gschem collects the refdeses of a selection and writes them to an 
intermediate file. 

2) gnetlist reads the file and appends/munges/converts them according 
like it is configured to to. The result is written to a second 
intermediate file.

3) pcb reads the list of munged refdeses and adds the corresponding 
components to the selection. 

A project manager GUI might reduce the hassle to the desired one-click-
operation. This is very similar to an update of the layout after a change 
in schematic. None of the tools needs to know more about the actual 
workflow than it has to know now.

---<(kaimartin)>---
-- 
Kai-Martin Knaak
http://lilalaser.de/blog



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