Binary SignWriting revision 3 update
Steve Slevinski
slevin at SIGNPUDDLE.NET
Thu Jun 17 13:14:40 UTC 2010
Hi Charles,
The markup for polar works the same as the cartesian. Each sign is
written on its own canvas (or grid). Each canvas has a defined center.
The relative position of the symbols to each other is determined by the
writer. The position of the sign as a whole on its canvas is determined
by centering rules.
Each markup will use 3 letters to represent lanes: L, B, and R. L for a
left lane sign box. B for a middle lane sign box. R for a right lane
sign box. Each of these letters signifies the start of a new canvas.
Consider the example I included:
B330°16129°14 B169°21252°680°1119°21
There are 2 signs, both in the middle lane. To use different lanes,
change the B's for L's or R's. Such as...
L330°16129°14 R169°21252°680°1119°21
The first sign is now in the left lane. The second sign is now in the
right lane.
Both polar and cartesian coordinates are equivalent forms and represent
the exact same data from a different point of view.
In my opinion, the cartesian markup is much easier to use. The polar
markup requires the use of trigonometric functions and the Pythagorean
theorem.
It will take experimentation to determine if one markup is more
meaningful or useful as a whole.
Regards,
-Steve
Charles Butler wrote:
> But how would one show lanes in a polar writing. If one needs
> multiple lanes to show a sign, say in the name sign Carmen Miranda, is
> it the center of the sign or the center of the sign component that one
> is showing. Just trying to make sure I understand cartesian vs polar.
> Is this is terms of the whole map of the objects in a sign, or each
> individual sign in a defined grid. Is this like Hangul in which a
> construction method is being used to show where all the components are
> in relation to each other, or in relation to an invisible box.
>
> image.php.png
>
> ------------------------------------------------------------------------
> *From:* Ingvild Roald <iroald at HOTMAIL.COM>
> *To:* SW-L at LISTSERV.VALENCIACC.EDU
> *Sent:* Thu, June 17, 2010 5:32:49 AM
> *Subject:* Re: Binary SignWriting revision 3 update
>
> Would not the polar version make it easier to change size - just one
> parameter to change (distance), not all as in Cartesian?
>
> Ingvild
>
>
>
> ------------------------------------------------------------------------
> Date: Wed, 16 Jun 2010 14:06:07 -0500
> From: slevin at SIGNPUDDLE.NET
> Subject: Re: Binary SignWriting revision 3 update
> To: SW-L at LISTSERV.VALENCIACC.EDU
>
> Hi Adam,
>
> Unfortunately, it's a 2 step process right now.
>
> The first page converts BSW 2008 to BSW 2010:
> http://signbank.org/iswa_dev/convert/example.php
>
> The second page converts BSW 2010 to BSW 3:
> http://signbank.org/iswa_dev/convert/bsw3.php
>
> Section 4 of the conversion document links to both pages.
> http://signbank.org/iswa_dev/convert/
>
>
> Speaking of conversions, building on the idea of encoding the symbols,
> but not the layout, I've created 2 different markups that will be able
> to use my proposed Unicode implementation. One Cartesian and the
> other Polar. These markups can be created from any SignPuddle data.
>
> If we consider "Hello world." in ASL...
>
>
>
> The Cartesian markup uses XY coordinates, where the coordinates
> represent the top,left of the symbol position.
>
> SignWriting Cartesian Markup
> ---------------------------------------
> B-19,-293,-11 B-11,12-18,-106,-7-2,-30
>
>
> The Polar markup uses degrees and distance from the center of the
> sign, where the coordinates represent the center of the symbol
> position. 12 o'clock is 0° and increases clockwise. So 3 o'clock is
> 90°, 6 o'clock is 180, and 9 o'clock is 270. It may be very
> interesting to analyze the Polar markup.
>
> SignWriting Polar Markup
> ----------------------------------
> B330°16129°14 B169°21252°680°1119°21
>
> Thought I'd share,
> -Steve
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