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SW-L  September 2011

SW-L September 2011

Subject:

Re: New version of the ISWA 2010 SVG Refinement is ready

From:

Alan Post <[log in to unmask]>

Reply-To:

SignWriting List: Read and Write Sign Languages

Date:

Mon, 19 Sep 2011 23:35:00 -0600

Content-Type:

text/plain

Parts/Attachments:

Parts/Attachments

text/plain (123 lines)

I'll share my experience working with the SVG fonts, in case it is
useful.

My target document is pdf, and I use TeX and LaTeX as my typesetting
system. That system works exclusively with Encapsulated Postscript,
(eps), which like SVG is a vector graphics format.

ImageMagick, which IIRC is used by SWIS, includes a utility,
convert, that translates images between formats. While it will,
technically, translate between SVG and EPS, it does so by converting
the SVG to a raster image and then converting that raster image to
EPS: you lose all of the benefit of having the graphic in SVG, it is
just as if you had a PNG image!

There is another tool called Inkscape that I used to convert the SVG
graphics to EPS. This tool preserves the vector information present
in the SVG, giving me a scallable EPS file from the SVG file. If
you need to do something similar, you'll get better results using
Inkscape!

Another problem I run into is that I fit each SVG image into a box in
my document. Some symbols are wider than they are tall, some
symbols are taller than they are wide. To get consistent formatting
results, I store a flag in my database saying whether the image is
portrait or landscape, and render it appropriately so everything
looks nice in the document.[1]

Finally, some symbols really should be rendered smaller than the box
I allocate for them. If I'm rendering the letteral 'A' and the sign
for afraid, the 'A' looks wrong being so large. I'm more-or-less
scaling on a case-by-case basis, though I would love a suggestion on
how I might render two symbols with different scaling factors such
that they appear at the same relative size: I would love to render
'C' then 'cup' and have the C-hand be the same size in each image,
by way of an example. In traditional typesetting, this would be
something like a constant x-height.

I was amazed to look at my first SVG document. I was getting
aliasing and artifacting with even regular-sized documents with PNG
images, and now I'm producing poster-quality documents that look
really sharp.

-Alan

1: I imagine one could ask the SVG image whether it is a portrait or
   landscape image. I haven't explored this yet.


On Tue, Sep 20, 2011 at 07:48:37AM -0700, Valerie Sutton wrote:
> SignWriting List
> September 20, 2011
> Hello Adam and Steve!
> Congratulations to you both. You are a team and without both of your
> "tireless" efforts we would not have such a lovely version of SVG in
> SignPuddle's ColumnMaker right now!
> I am preparing some instruction for our users, to learn how to change your
> documents from the PNG Standard to the SVG Refinement fonts, to see if the
> SVG is helpful to your publications - Steve just posted the SVG Refinement
> font so I myself have not learned yet, how it looks when we print a
> document - I am looking forward to exploring what this accomplishment
> means for all of us -
> And Adam, you did work tirelessly, for three months, every day during the
> summer of 2011, and also for several years earlier... I know because you
> were here in my home doing the work! So I saw the painstaking
> dot-by-dot-png images become smooth SVG images - and then I asked you to
> re-do some of them to a thinner line - and that was no small task -
> I also want to acknowledge Machado from Brazil for his original and first
> full SVG font for SignWriting, that was done for the IMWA 2004. Thank you,
> Machado, for paving the way. And now Adam and Steve have done the same for
> the ISWA 2010. I plan to write a history of the SVG development, when I
> can - It is an impressive job all around -
> SVG is not TrueType - Stefan and Steve Parkhurst and Michael Everson have
> created beautiful TrueType fonts for SignWriting that are so wonderful,
> and we need TrueType too. But SVG can help create new TrueType fonts for
> the future, and in some ways, gives the same look, because now the Facial
> Circles are smoother with both SVG and TrueType.
> As Adam knows, I am a caregiver here in my home for my parents and I need
> to help them with breakfast, but later today I will tell you all how to
> use the SVG we have in SignPuddle now - I am testing it in Microsoft Word
> and other documents -
> Have a great day everyone!
> Val ;-)
> --------
> On Sep 20, 2011, at 7:24 AM, Adam Frost wrote:
>
> Oh, I don't know about working tirelessly because there were times I was
> quite tired. ;-) But I knew I had to get it done.
> Adam
> On Sep 20, 2011, at 10:18 AM, Steve Slevinski wrote:
>
> Hi list,
>
> This past summer, Adam Frost worked tirelessly to finish the Scalable
> Vector Graphics refinement of the ISWA 2010. He completed every
> symbol. SVG allows for round circles, smooth lines, and improved
> clarity at different sizes.
>
> After Adam finished his work, I needed to rotate, refactor, and
> package his work as a font that could work with SignPuddle. This has
> been completed.
>
> The new version of the SVG Refinement has been installed in
> SignPuddle. You can access it through ColumnMaker.
>
> For those using the SignWriting Image Server or other custom software,
> you can download the new version of the SVG Refinement font online:
> [1]http://www.signpuddle.net/iswa
>
> This is not the final version of the SVG Refinement, but this is the
> first time the entire symbol set has been available in this font.
>
> Thanks to Adam for all of his work.
>
> Regards,
> -Steve
>
> References
>
> Visible links
> 1. http://www.signpuddle.net/iswa

--
.i ma'a lo bradi cu penmi gi'e du

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