Re: gEDA-user: Functional blocks and PCB format changes

[timecop <timecop@xxxxxxxxx>]

   iPAd is about as closedsores and proprietary as it gets; you sure you
   want to support that?

   On 5 Sep 2010 11:57, "Steven Michalske" <[1]smichalske@xxxxxxxxx>
   wrote:
   >
   >
   >
   >
   >
   > On Sep 4, 2010, at 8:49 AM, Andrew Poelstra <[2]asp11@xxxxxx> wrote:
   >
   >> On Sat, Sep 04, 2010 at 01:16:01AM -0400, Rick Collins wrote:
   >>>
   >>> Don't hold back, tell us how you really feel!
   >>>
   >>> The spec is large because it addresses a wide range of design
   >>> aspects, which is one of the great reasons for using it, one file
   >>> for the entire design, schematic, layout, mechanical, etc, even
   >>> board lay up. So the compatibility issue is moot because any one
   >>> app only needs to deal with the portion that applies to it. Just
   >>> don't muck with the other parts.
   >>>
   >>> The "heavy" issue is a red herring (are you planning on hosting
   this
   >>> on a cell phone maybe?) No PCB file format is going to be easy for
   >>> humans to read. Bandwidth? Back to the MCU in the cell phone I
   >>> guess. "Ugly", now there is a great technical argument.
   >>>
   >>> But I suppose it is better to re-invent the wheel. There is no
   >>> reason to try to foster any sort of compatibility in file formats
   >>> between all the different CAD tools. There are always conversion
   >>> programs to be written, no?
   >>>
   >>
   >> This is not an emotional argument, but a technical one, and the
   >> choice is not between XML and reinventing the wheel. (Sadly, my
   >> Lisp suggestion has been shot down - by better arguments than
   >> popularity, I might add. ;) There are other formats to consider,
   >> and yes, inventing one might be an option.
   >>
   >> How do you know PCB won't ever run on cell phones, or over a
   >> slow network link, or on an embedded device or network PC or
   >> overtaxed virtual machine? How do you know we won't one day
   >> need to work with 1000-layer boards when suddenly it /does/
   >> matter how heavy the file format is?
   >>
   > Think BIG designs, a bloated file format will hurt. And I want PCB on
   my iPad. It has OpenGL ES, that would be putting it on a phone....
   >
   >> Unless you want feature-parity with other CAD programs, it
   >> is impossible to have file-format-parity. So no matter what,
   >> conversion programs will have to be written. Creating similar
   >> file formats won't help anything, other than to limit our own
   >> format, and potentially cause problems if PCB and another CAD
   >> program are able to open (and corrupt) each other's files.
   >>
   >>
   >> Andrew
   >>
   >>
   >>
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   >
   >
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References

   1. mailto:smichalske@xxxxxxxxx
   2. mailto:asp11@xxxxxx
   3. mailto:geda-user@xxxxxxxxxxxxxx
   4. http://www.seul.org/cgi-bin/mailman/listinfo/geda-user
   5. mailto:geda-user@xxxxxxxxxxxxxx
   6. http://www.seul.org/cgi-bin/mailman/listinfo/geda-user


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