[oats-sig] Ang: Re: Ang: Re: Ang: Re: Ang: Re: wmf to svg conversion

Hi guys, and more thanks for your input!

Found these – any use?

http://pcwin.com/Multimedia___Design/SVG_Import_Export_Converter/index.htm

http://wolfey.sillydog.org/blog/2006/09/20/vector-image-file-conversion-svg-
wmf/

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From: oats-sig-bounces at lists.becta.org.uk
[mailto:oats-sig-bounces at lists.becta.org.uk] On Behalf Of Mats Lundälv
Sent: 01 July 2008 21:18
To: OATs Project Special Interest Group
Subject: [oats-sig] Ang: Re: Ang: Re: Ang: Re: Ang: Re: wmf to svg
conversion

Yes Steeve, you may say that ;-/

Now I have tried Robert's suggestion - the wmf2svg tool, and guess what?

I get proper conversions to valid svg files with all graphical elements
included, including the circular elements, it seems - BUT these circular
elements are not proportionally sized - see the example image dumps below.
So here I am, still stuck.

The problem is of course that we are messing with a complex and poorly
documented proprietary Microsoft format - that Microsoft themselves cannot
handle consistently between different Office versions. Since Office 2003
circle segments are not displayed as they were before. (Microsoft support
suggested us to use png:s instead of wmf - stndard bitmap format instead of
a Microsoft non-standard vector format, ha!) Different programs obviously
output and display wmf:s slightly differently and few have any real clue to
the details of the format, I suppose.

So no wonder really that our conversion tools have problems in converting
consistently.

I'll ponder on this now for a while.
Thanks again for your help!

Cheers, 
Mats

always-wmf_via_in_Win_ImageViewer.jpg (proper display)
always2-svg_via_SVG_Factory_in_Inkscape.jpg (circular elements excluded)
always2-svg_via_wmf2svg_in_Inkscape.jpg (circle out od proportion)
always2-svg_via_wmf2svg_in_FireFox.jpg (same in Firefox, plus not whole
picture shown)

 <mailto:mats.lundalv at sit.se> 

-----<oats-sig-bounces at lists.becta.org.uk> skrev: -----

surely there must be are better tools? Oh well.

Looks like image magick has not improved since 2002 and Robert's
solution was tha good one even back then
http://studio.imagemagick.org/pipermail/magick-users/2002-August/004112.html

Garry et al edit the files in Adobe Illustrator and export to wmf and
SVG. The wmf files need quite a bit of hand correction, probably due
to the very privative facilities of that format. The SVGs need very
little attention.

Steve

2008/7/1 Mats Lundälv <mats.lundalv at vgregion.se>:
> Hi guys, and more thanks for your input!
>
> Jonathan; I have native wmf files, and definitely want to go directly
> between the the two vector formats. Dis you ever make it to the batik java
> convertion tools?
>
> So, as many of you say, the fake handling of wmf (and svg?) that the
bitmap
> graphics programs use to access the vector formats are pretty useless.
>
> I just tried the latest version of ImageMagick with the same poor result
as
> you Andy. It opens and displays my files nicely, and pretends to convert
to
> svg, but the svg files are not valid svg-xml.
>
> I actually managed to run a batch conversion with the old svgFactory tool,
> but only straight lines were handled correctly - all circular/rounded
shapes
> had just disappeared - so again no luck :-(
>
> InkScape open all my black on transparent white Blissymbol images with an
> empty canvas :-(
>
> So now my hope is on Robert's solutions, which I will now concentrate on
...
>
> Cheers,
> Mats
>
> -----<oats-sig-bounces at lists.becta.org.uk> skrev: -----
>
> Till: OATs Project Special Interest Group <oats-sig at lists.becta.org.uk>
> Från: Jonathan Chetwynd <j.chetwynd at btinternet.com>
> Sänt av: <oats-sig-bounces at lists.becta.org.uk>
> Datum: 2008-07-01 08:13
> Ärende: Re: [oats-sig] Ang: Re: Ang: Re: wmf to svg conversion
>
> Mats and all,
> please confirm whether the tool output is native SVG or merely embeds or
> packages the image in an SVG wrapper.
> pcx to svg would also be handy, in addition to wmf to svg
> Illustrator for instance opens pcx files and saves to svg format, but in
my
> limited experience this is 'useless'.
> ie it's similar to embedding a gif photo in html, rather than changing the
> format.
> regards
>
>
>
> Jonathan Chetwynd
>
>
>
> j.chetwynd at btinternet.com
> http://www.openicon.org/
>
>
>
> +44 (0) 20 7978 1764
>
>
> On 30 Jun 2008, at 21:27, Mats Lundälv wrote:
>
> Thanks all for your help!
>
> My point is really to find a usable direct path directly from the wmf/emf
> vector format to the svg vector format.
>
> Steeve: As far as I had understood the ImageMagick package only really
fully
> supports raster graphics formats and not vector graphics. This libwmf
seems
> to provide a possible add-on to IM, but looks a bit uncertain, as in alpha
> stage, and these projects don't seem very end-user oriented. I'll have a
> look.
> Do you know what tools Garry and friends use?
>
> Robert, I have just downloaded the wmf2svg jar file you pointed me to,
> thanks. There are no explicit instructions for batch conversions there -
> have you found a format for that?
> This one looks as it could have been an implementation of the batik java
> classes - same Apache license, but no clear pointers to batik, as far as I
> can see.
> I'll go ahead testing this and the other alternatives I have.
>
> I'll try to remember to give you some feedback on how I succeed.
>
> Andy, thanks for your offer! I'll send you a couple of files if you care
for
> checking this up.
>
> Cheers,
> Mats
>
> -----<oats-sig-bounces at lists.becta.org.uk> skrev: -----
>
> Till: "OATs Project Special Interest Group" <oats-sig at lists.becta.org.uk>
> Från: Andy Judson <andy.judson at gmail.com>
> Sänt av: <oats-sig-bounces at lists.becta.org.uk>
> Datum: 2008-06-30 15:27
> Ärende: Re: [oats-sig] Ang: Re: wmf to svg conversion
>
> Hi Robert, i can't remember which version... will try to check later.
>
> Mats / Steve (sorry can't remember who started this thread) - if you could
> send me a couple of the wmf files i'll see what is involved in patching my
> code... it should be easier than the png technique - i think when i did
this
> i had to use the potrace as a proxy to trace the symbol the result was
then
> made into an svg - worked quite well for bliss symbols although the were a
> little round at the tips.
>
> 2008/6/30 Robert Rasiewicz <robert.wk at gmail.com>:
>>
>> this did work for me nicely for wmf (I did not test the transparency,
>> though)
>>    http://code.google.com/p/wmf2svg/
>>
>> on the same test file I did try ImageMagick 6.3.7 11/21/07 convert.exe
and
>> it failed horribly
>>
>> which version of ImageMagick were you working against, Andy ?
>>
>> r.
>>
>> On Mon, Jun 30, 2008 at 1:03 PM, Steve Lee <steve at fullmeasure.co.uk>
>> wrote:
>>>
>>> Hey they look really interesting, I know someone who wants edge tracing.
>>>
>>> it's worth noting that wmf/emf are vector formats so conversion should
>>> be easier.
>>>
>>> Steve
>>>
>>> 2008/6/30 Andy Judson <andy.judson at gmail.com>:
>>> > I wrote a .net app to do this from png to svg for the bliss symbols
>>> > using
>>> > the imagemagick library... but the code is at home and i can't
remember
>>> > much
>>> > about it... i can have a look if i can tweak it for you.
>>> >
>>> > other libraries to look at
>>> >
>>> > [1] http://delineate.sourceforge.net/
>>> > [2] http://potrace.sourceforge.net/
>>> >
>>> > 2008/6/30 Steve Lee <steve at fullmeasure.co.uk>:
>>> >>
>>> >> oh Inkscape will import WMF so that's a good non-batch alternative
and
>>> >> I think OO0 will if you 'break' the image after import.
>>> >>
>>> >> Steve
>>> >>
>>> >> 2008/6/30 Steve Lee <steve at fullmeasure.co.uk>:
>>> >> >> I have been looking around again for tools to convert wmf/emf
>>> >> >> graphic
>>> >> >> files
>>> >> >> to svg.
>>> >> >
>>> >> > Well the PHP web server tool of choice seems to be ImageMagick and
>>> >> > while I have not tried it yet it looks like there are command line
>>> >> > versions.
>>> >> >
>>> >> > http://www.imagemagick.org/script/index.php
>>> >> >
>>> >> > I came across SVG factory before and there's libwmf but there
>>> >> > doesn't
>>> >> > seem to have been any activity since 2002
>>> >> >
>>> >> > http://wvware.sourceforge.net/libwmf.html
>>> >> >
>>> >> > I've not tried any of them yet as Garry exports directly to wmf or
>>> >> > SVG
>>> >> > as required.
>>> >> >
>>> >> > --
>>> >> > Steve Lee
>>> >> > --
>>> >> > Open Source Assistive Technology Software
>>> >> > web: fullmeasure.co.uk
>>> >> > blog: eduspaces.net/stevelee/weblog
>>> >> >
>>> >>
>>> >>
>>> >>
>>> >> --
>>> >> Steve Lee
>>> >> --
>>> >> Open Source Assistive Technology Software
>>> >> web: fullmeasure.co.uk
>>> >> blog: eduspaces.net/stevelee/weblog
>>> >>
>>> >>
>>> >>
>>> >
>>> >
>>>
>>>
>>>
>>> --
>>> Steve Lee
>>> --
>>> Open Source Assistive Technology Software
>>> web: fullmeasure.co.uk
>>> blog: eduspaces.net/stevelee/weblog
>>>
>>>
>>>
>>
>
>
>
>
>

-- 
Steve Lee
--
Open Source Assistive Technology Software
web: fullmeasure.co.uk
blog: eduspaces.net/stevelee/weblog

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