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Groups > comp.sys.acorn.apps > #2686 > unrolled thread

Loading a scan into ProCAD+

Started by"Dave Plowman (News)" <dave@davenoise.co.uk>
First post2012-01-12 18:09 +0000
Last post2012-01-29 18:38 +0000
Articles 14 — 5 participants

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  Loading a scan into ProCAD+ "Dave Plowman (News)" <dave@davenoise.co.uk> - 2012-01-12 18:09 +0000
    Re: Loading a scan into ProCAD+ cferris@freeRemoveuk.com.invalid - 2012-01-13 17:23 +0000
      Re: Loading a scan into ProCAD+ "Dave Plowman (News)" <dave@davenoise.co.uk> - 2012-01-13 17:41 +0000
        Re: Loading a scan into ProCAD+ Chris Bell <news@highpath.net> - 2012-01-16 19:10 +0000
          Re: Loading a scan into ProCAD+ Martin Bazley <martin.bazley@blueyonder.co.uk> - 2012-01-16 20:13 +0000
          Re: Loading a scan into ProCAD+ "Dave Plowman (News)" <dave@davenoise.co.uk> - 2012-01-16 23:42 +0000
    Re: Loading a scan into ProCAD+ "Dave Plowman (News)" <dave@davenoise.co.uk> - 2012-01-20 10:54 +0000
      Re: Loading a scan into ProCAD+ T M Smith <thomas.smith57@ntlworld.com> - 2012-01-20 20:11 +0000
        Re: Loading a scan into ProCAD+ "Dave Plowman (News)" <dave@davenoise.co.uk> - 2012-01-21 10:42 +0000
          Re: Loading a scan into ProCAD+ T M Smith <thomas.smith57@ntlworld.com> - 2012-01-21 20:54 +0000
      Re: Loading a scan into ProCAD+ cferris@freeRemoveuk.com.invalid - 2012-01-29 13:07 +0000
        Re: Loading a scan into ProCAD+ "Dave Plowman (News)" <dave@davenoise.co.uk> - 2012-01-29 14:01 +0000
          Re: Loading a scan into ProCAD+ Chris Bell <news@highpath.net> - 2012-01-29 15:17 +0000
            Re: Loading a scan into ProCAD+ "Dave Plowman (News)" <dave@davenoise.co.uk> - 2012-01-29 18:38 +0000

#2686 — Loading a scan into ProCAD+

From"Dave Plowman (News)" <dave@davenoise.co.uk>
Date2012-01-12 18:09 +0000
SubjectLoading a scan into ProCAD+
Message-ID<5250829a6ddave@davenoise.co.uk>
When requiring to make a drawing of something - like say a PCB - I scan
the PCB on my flat bed scanner, using DPlingScan, and if saved as a
Drawfile can drop it into DrawWorksXL where it comes out as the actual
size, measured against the grid. Doing this with a ruler shows it to be as
accurate as makes no difference.

But not when I do so into ProCAD+. Any tips on how to do this?

-- 
*Beauty is in the eye of the beer holder *                            

    Dave Plowman        dave@davenoise.co.uk           London SW
                  To e-mail, change noise into sound.

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#2700

Fromcferris@freeRemoveuk.com.invalid
Date2012-01-13 17:23 +0000
Message-ID<f341025152.cferris@cferris.freeuk.com>
In reply to#2686
In message <5250829a6ddave@davenoise.co.uk>
          "Dave Plowman (News)" <dave@davenoise.co.uk> wrote:

> When requiring to make a drawing of something - like say a PCB - I
> scan the PCB on my flat bed scanner, using DPlingScan, and if saved
> as a Drawfile can drop it into DrawWorksXL where it comes out as the
> actual size, measured against the grid. Doing this with a ruler shows
> it to be as accurate as makes no difference.
> 
> But not when I do so into ProCAD+. Any tips on how to do this?
> 

Do you mean that printing out is incorrect - or are you measuring the
screen?

Have you a small test example?

-- 
Colin Ferris Cornwall UK

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#2701

From"Dave Plowman (News)" <dave@davenoise.co.uk>
Date2012-01-13 17:41 +0000
Message-ID<525103e8a5dave@davenoise.co.uk>
In reply to#2700
In article <f341025152.cferris@cferris.freeuk.com>,
   <cferris@freeRemoveuk.com.invalid> wrote:
> > When requiring to make a drawing of something - like say a PCB - I
> > scan the PCB on my flat bed scanner, using DPlingScan, and if saved
> > as a Drawfile can drop it into DrawWorksXL where it comes out as the
> > actual size, measured against the grid. Doing this with a ruler shows
> > it to be as accurate as makes no difference.
> > 
> > But not when I do so into ProCAD+. Any tips on how to do this?
> > 

> Do you mean that printing out is incorrect - or are you measuring the
> screen?

Measured by the grid in ProCAD. 

> Have you a small test example?

If I scan in a say 300mm ruler, save as a Drawfile, and drop that into DW,
it is exactly correct on the grid, ie actual size. Not so with ProCAD.

If I'm copying a PCB, say, smaller than A4 paper size, it's easier to work
in real sizes rather than scale things up or down.

-- 
*If you think nobody cares about you, try missing a couple of payments *

    Dave Plowman        dave@davenoise.co.uk           London SW
                  To e-mail, change noise into sound.

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#2747

FromChris Bell <news@highpath.net>
Date2012-01-16 19:10 +0000
Message-ID<5252978f30news@highpath.net>
In reply to#2701
Dave Plowman (News) <dave@davenoise.co.uk> wrote:
> When requiring to make a drawing of something - like say a PCB -
> I scan the PCB on my flat bed scanner, using DPlingScan, and if
> saved as a Drawfile can drop it into DrawWorksXL where it comes
> out as the actual size, measured against the grid. Doing this
> with a ruler shows it to be as accurate as makes no difference.
> 
> But not when I do so into ProCAD+. Any tips on how to do this?

I forwarded this problem to David Snell, ProCAD's author, and he says
his private reply to you has been returned undelivered.  Is that your
real address?

Chris.
( c h r i s a t h i g h p a t h d o t n e t )

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#2749

FromMartin Bazley <martin.bazley@blueyonder.co.uk>
Date2012-01-16 20:13 +0000
Message-ID<c8589d5252.martin@blueyonder.co.uk>
In reply to#2747
The following bytes were arranged on 16 Jan 2012 by Chris Bell :

> Dave Plowman (News) <dave@davenoise.co.uk> wrote:
> > When requiring to make a drawing of something - like say a PCB -
> > I scan the PCB on my flat bed scanner, using DPlingScan, and if
> > saved as a Drawfile can drop it into DrawWorksXL where it comes
> > out as the actual size, measured against the grid. Doing this
> > with a ruler shows it to be as accurate as makes no difference.
> >
> > But not when I do so into ProCAD+. Any tips on how to do this?
>
> I forwarded this problem to David Snell, ProCAD's author, and he says
> his private reply to you has been returned undelivered.  Is that your
> real address?

If you mean davenoise, no, it's supposed to be davesound.  (I think...)

-- 
  __<^>__
 / _   _ \  I don't have a problem with God; it's his fan club I can't stand.
( ( |_| ) )
 \_>   <_/  ======================= Martin Bazley ==========================

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#2752

From"Dave Plowman (News)" <dave@davenoise.co.uk>
Date2012-01-16 23:42 +0000
Message-ID<5252b07ec6dave@davenoise.co.uk>
In reply to#2747
In article <5252978f30news@highpath.net>,
   Chris Bell <news@highpath.net> wrote:
> Dave Plowman (News) <dave@davenoise.co.uk> wrote:
> > When requiring to make a drawing of something - like say a PCB -
> > I scan the PCB on my flat bed scanner, using DPlingScan, and if
> > saved as a Drawfile can drop it into DrawWorksXL where it comes
> > out as the actual size, measured against the grid. Doing this
> > with a ruler shows it to be as accurate as makes no difference.
> > 
> > But not when I do so into ProCAD+. Any tips on how to do this?

> I forwarded this problem to David Snell, ProCAD's author, and he says
> his private reply to you has been returned undelivered.  Is that your
> real address?

> Chris.
> ( c h r i s a t h i g h p a t h d o t n e t )

No - the real one needs decoding from the info in the sig.

-- 
*Middle age is when work is a lot less fun - and fun a lot more work.

    Dave Plowman        dave@davenoise.co.uk           London SW
                  To e-mail, change noise into sound.

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#2813

From"Dave Plowman (News)" <dave@davenoise.co.uk>
Date2012-01-20 10:54 +0000
Message-ID<5254797d8fdave@davenoise.co.uk>
In reply to#2686
Thanks to Chris for passing this on to David Snell and thanks to him for
contacting me, and in an email today telling me he's sending an upgrade
which should sort it.

Seems it is just down to my lack of knowledge of the basics. (My words,
not his) ;-)

Here's the explanation from his email as it may help others. 

*****************
I have sorted the apparent resize of sprites when loading
in Draw files in ProCAD+. It happened because the RISC OS
standard pixel size is 90dpi and your scan was 100dpi, hence
the 10% difference. The sprite had been resized in Draw by
changing the size of its bounding box, so this information
is now taken into account by ProCAD+ and the sprite is
accordingly rescaled.

-- 
*I never drink anything stronger than gin before breakfast *

    Dave Plowman        dave@davenoise.co.uk           London SW
                  To e-mail, change noise into sound.

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#2823

FromT M Smith <thomas.smith57@ntlworld.com>
Date2012-01-20 20:11 +0000
Message-ID<5681ac5452.Broadband@thomas.smith57.virginmedia.com>
In reply to#2813
In message <5254797d8fdave@davenoise.co.uk>
          "Dave Plowman (News)" <dave@davenoise.co.uk> wrote:


[snip]

> 

> Here's the explanation from his email as it may help others.

> *****************
> I have sorted the apparent resize of sprites when loading
> in Draw files in ProCAD+. It happened because the RISC OS
> standard pixel size is 90dpi and your scan was 100dpi, hence
> the 10% difference. The sprite had been resized in Draw by
> changing the size of its bounding box, so this information
> is now taken into account by ProCAD+ and the sprite is
> accordingly rescaled.

Is this upgrade generally available?

Malcolm Smith

-- 
T M Smith
Using an Iyonix and RISC OS 5.16 in the North Riding of Yorkshire

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#2839

From"Dave Plowman (News)" <dave@davenoise.co.uk>
Date2012-01-21 10:42 +0000
Message-ID<5254fc3e78dave@davenoise.co.uk>
In reply to#2823
In article <5681ac5452.Broadband@thomas.smith57.virginmedia.com>,
   T M Smith <thomas.smith57@ntlworld.com> wrote:
> Is this upgrade generally available?

I don't think David Snell reads this group so you'd have to ask him.

I find it a very useful feature for the things I do rather often.

-- 
*Organized Crime Is Alive And Well; It's Called Auto Insurance.

    Dave Plowman        dave@davenoise.co.uk           London SW
                  To e-mail, change noise into sound.

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#2849

FromT M Smith <thomas.smith57@ntlworld.com>
Date2012-01-21 20:54 +0000
Message-ID<a83a345552.Broadband@thomas.smith57.virginmedia.com>
In reply to#2839
In message <5254fc3e78dave@davenoise.co.uk>
          "Dave Plowman (News)" <dave@davenoise.co.uk> wrote:

> In article <5681ac5452.Broadband@thomas.smith57.virginmedia.com>,
>    T M Smith <thomas.smith57@ntlworld.com> wrote:
>> Is this upgrade generally available?

> I don't think David Snell reads this group so you'd have to ask him.

> I find it a very useful feature for the things I do rather often.
Thankyou Dave


-- 
T M Smith
Using an Iyonix and RISC OS 5.16 in the North Riding of Yorkshire

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#2940

Fromcferris@freeRemoveuk.com.invalid
Date2012-01-29 13:07 +0000
Message-ID<9c2c285952.cferris@cferris.freeuk.com>
In reply to#2813
In message <5254797d8fdave@davenoise.co.uk>
          "Dave Plowman (News)" <dave@davenoise.co.uk> wrote:

[snip]
> *****************
> I have sorted the apparent resize of sprites when loading
> in Draw files in ProCAD+. It happened because the RISC OS
> standard pixel size is 90dpi and your scan was 100dpi, hence
> the 10% difference. The sprite had been resized in Draw by
> changing the size of its bounding box, so this information
> is now taken into account by ProCAD+ and the sprite is
> accordingly rescaled.
> 

Have you managed to scan mags with PCB's in - and then using 'ProCAD'
reproduce them in vector format? 

-- 
Colin Ferris Cornwall UK

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#2941

From"Dave Plowman (News)" <dave@davenoise.co.uk>
Date2012-01-29 14:01 +0000
Message-ID<52592d2ad6dave@davenoise.co.uk>
In reply to#2940
In article <9c2c285952.cferris@cferris.freeuk.com>,
   <cferris@freeRemoveuk.com.invalid> wrote:
> Have you managed to scan mags with PCB's in - and then using 'ProCAD'
> reproduce them in vector format? 

Probably not as you hope - I just use the scan as a guide to draw them
from. But if the scan is actual size it saves having to scale things.

It would be nice to have software which took a Sprite of something like
this and turned it into a nice crisp Drawfile or whatever. ;-)

-- 
*Why do the two "sanction"s (noun and verb) mean opposites?*

    Dave Plowman        dave@davenoise.co.uk           London SW
                  To e-mail, change noise into sound.

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#2942

FromChris Bell <news@highpath.net>
Date2012-01-29 15:17 +0000
Message-ID<5259341b4fnews@highpath.net>
In reply to#2941
 Dave Plowman (News) <dave@davenoise.co.uk> wrote:

> It would be nice to have software which took a Sprite of something
> like this and turned it into a nice crisp Drawfile or whatever. ;-)

David Pilling's 'Trace' can be used as a starting point.  You need to
experiment with its 'Error' setting to get the best results.

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#2944

From"Dave Plowman (News)" <dave@davenoise.co.uk>
Date2012-01-29 18:38 +0000
Message-ID<5259467febdave@davenoise.co.uk>
In reply to#2942
In article <5259341b4fnews@highpath.net>,
   Chris Bell <news@highpath.net> wrote:
>  Dave Plowman (News) <dave@davenoise.co.uk> wrote:

> > It would be nice to have software which took a Sprite of something
> > like this and turned it into a nice crisp Drawfile or whatever. ;-)

> David Pilling's 'Trace' can be used as a starting point.  You need to
> experiment with its 'Error' setting to get the best results.

I've tried it - but not found it saves any time.

-- 
*Re-elect nobody

    Dave Plowman        dave@davenoise.co.uk           London SW
                  To e-mail, change noise into sound.

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