Re: [Gerbv-devel] Zip file processing

2016-10-18 Thread Joerg Wunsch 
As Valerio Messina wrote:

> On 18/10/2016 09:53, Joerg Wunsch wrote:
> > There's some automagic for
> > recognizing Gerber vs. RS-274-X
> 
> a question: gerbv can open old style Gerber?

It has some fallback logic for them, but doesn't "officially" want to
support them - which I think is understandable, as it would need to
handle separate aperture files then (and probably need much more
guesswork about the actual format as well).

> > so this magic should obviously
> > be able to also recognize .gvp files.
> 
> gvp files are marked at the start so should be very easy to recognize them

Yes, I know.
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Re: [Gerbv-devel] Zip file processing

2016-10-18 Thread Valerio Messina 
On 18/10/2016 09:53, Joerg Wunsch wrote:
> There's some automagic for
> recognizing Gerber vs. RS-274-X

a question: gerbv can open old style Gerber?
On web site is clearly sayd NO?! so I never tried.
But sometimes from an old floppy disk come out some unreadable files by 
current softwares. gerbv can?

> so this magic should obviously
> be able to also recognize .gvp files.

gvp files are marked at the start so should be very easy to recognize them

thank you again,
Valerio


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Re: [Gerbv-devel] Zip file processing

2016-10-18 Thread Joerg Wunsch 
As Valerio Messina wrote:

> I regularly send .7z files (or tar.7z), and all are well recognized and 
> processed by the automatic web demo/preview of online services.
> 7zip is far better than zip and is open and cross-platform as well.
> so hope recognition of .7z files too ;-)

As long as your zlib does so, it would be no problem.

I wouldn't want to deal with multiple compression interfaces.
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Re: [Gerbv-devel] Zip file processing

2016-10-18 Thread Stephan Böttcher 
Joerg Wunsch  writes:

> As Sergey Alyoshin wrote:
>
>> > Is there some interest in such a feature?  If so, I'd explore how to
>> > add it to the code base.
>> 
>> It is one of long standing in gerbv wish list on sf.net
>
> Ah, OK.  I'll see what I can do.

:-)

And if you find a gerbv project file in there, please load that too.

(And, since you'll need functions to find out which files are gerbers,
those functions could be applied to commandline argument, to detect
project files without the -p that I often forget to type?)

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Re: [Gerbv-devel] Merge layer option

2016-10-18 Thread Sergey Alyoshin 
On Tue, Oct 18, 2016 at 10:17 AM, Joerg Wunsch  wrote:
> As Sergey Alyoshin wrote:
>
>> > Thus, I think the really only safe option is to compare for less than
>> > a small epsilon rather than equality.
>>
>> Maybe for clarity check against DBL_EPSILON instead of 1e-6?
>
> OK, I'll give that a try.  I wasn't aware such constant exists.
>
> In theory, for a true epsilon, the difference would need to be divided
> by the base value, but since all relevant base values (π/2, π·3/2) are
> close enough to 1, I think this step can be skipped.
>
> (Layer stack script)
>
>> You can make for _each_ merged layer a project file with positioning, 
>> rotation
>> and layer visibility.
>
> That doesn't help much for panelization.  There's two kind of layer
> groups: one group forming each sub-board, each using the same
> translation / rotation values (to be defined / refined while
> panelizing), and one group forming each output layer.  In order to be
> useful, all the input layers need to be present in a single project.
>
> Thanks for your response anyway, so at least, I know there's no easy
> and obvious option I've been missing.  The merge feature itself is
> already useful enough as it is now, so a „болшое спасибо“ to you for
> implementing it.

I am not the original author, just fixing some bugs.


> Maybe I should ask again for release plans, so this nice feature could
> be more publically announced. ;-)

Export with merge was added in 2011 (and not by me).
I don't have release plans, but gerbv should be checked and released.

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Re: [Gerbv-devel] Merge layer option

2016-10-18 Thread Joerg Wunsch 
As Joerg Wunsch wrote:

> (Layer stack script)
> 
> > You can make for _each_ merged layer a project file with positioning, 
> > rotation
> > and layer visibility.
> 
> That doesn't help much for panelization.

OK, upon re-thinking, I guess I know what you mean.

Yes, a little more cumbersome than the scheme script I had in
mind, but maybe easier than re-arranging the stackup all the
time.
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Re: [Gerbv-devel] Merge layer option

2016-10-18 Thread Joerg Wunsch 
As Sergey Alyoshin wrote:

> > Thus, I think the really only safe option is to compare for less than
> > a small epsilon rather than equality.
> 
> Maybe for clarity check against DBL_EPSILON instead of 1e-6?

OK, I'll give that a try.  I wasn't aware such constant exists.

In theory, for a true epsilon, the difference would need to be divided
by the base value, but since all relevant base values (π/2, π·3/2) are
close enough to 1, I think this step can be skipped.

(Layer stack script)

> You can make for _each_ merged layer a project file with positioning, rotation
> and layer visibility.

That doesn't help much for panelization.  There's two kind of layer
groups: one group forming each sub-board, each using the same
translation / rotation values (to be defined / refined while
panelizing), and one group forming each output layer.  In order to be
useful, all the input layers need to be present in a single project.

Thanks for your response anyway, so at least, I know there's no easy
and obvious option I've been missing.  The merge feature itself is
already useful enough as it is now, so a „болшое спасибо“ to you for
implementing it.

Maybe I should ask again for release plans, so this nice feature could
be more publically announced. ;-)
-- 
cheers, Joerg   .-.-.   --... ...--   -.. .  DL8DTL

http://www.sax.de/~joerg/
Never trust an operating system you don't have sources for. ;-)

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Re: [Gerbv-devel] Zip file processing

2016-10-18 Thread Joerg Wunsch 
As Sergey Alyoshin wrote:

> > Is there some interest in such a feature?  If so, I'd explore how to
> > add it to the code base.
> 
> It is one of long standing in gerbv wish list on sf.net

Ah, OK.  I'll see what I can do.
-- 
cheers, Joerg   .-.-.   --... ...--   -.. .  DL8DTL

http://www.sax.de/~joerg/
Never trust an operating system you don't have sources for. ;-)

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