The Quadoo Alphabet

Quadoo , the square writing by Alexander Fakoó

The Quadoo Alphabet (the Quadoo Writing) as square braille or square writing for the blind (also called line alphabet, square script or square scripture) was developed for handwritten notes by the blind. In this case, a hole slate is used with square holes and written only with six lines side correctly.

Quadoo is a relief writing and as a curveless blind handwriting also an alternative for touch and / or learning impaired blind. Other blind people can use this for quick notes too. The Quadoo Alphabet can also be used outdoor as a makeshift writing. Because only vertical, horizontal and diagonal lines form the characters.

---------- Quadoo Alphabet: ---------- Only the four sidelines of a square and the two diagonals are used. To describe the lines, the four corner points are numbered as follows: top: [1] [2] bottom: [3] [4] or the following abbreviations are used for the letter code: t = top, b = bottom, r = right, l = left, u = up, d = down For each character the points are to be connected in the following order: A = 3-2-4 = ru B = 1-2-4-3-2 = trbu C = 4-3-2 = bu D = 3-2-4-3 = rbu E = 2-1-3-4 = tbl F = 2-1-3 = tl G = 2-1-4 = td H = 1-3 + 2-4 = rl I = 3-2 = u J = 2-4-3 = rb K = 1-3-4-3-2 = blu L = 1-3-4 = bl M = 4-2-1-3-2 = trlu N = 3-1-4-2 = rld O = 2-1-3-4-2 = trbl P = 3-1-2-3 = tlu Q = 1-2-4-3-1-4 = trbld R = 3-1-2-1-4 = tld S = 3-4-1 = bd T = 1-2-4 = tr U = 1-3-4-2 = rbl V = 1-3-2 = lu W = 1-3-4-2-3 = rblu X = 1-4 + 2-3 = ud Y = 2-4-3-4-1 = rbd Z = 1-2-3-4 = tbu 1 = 2-4 = r 2 = 1-2-4-3 = trb 3 = 1-2-4-2-3 = tru 4 = 4-1-2-3 = tsd 5 = 2-1-4-3 = tbd 6 = 2-1-3-4-1 = tbld 7 = 1-2-3 = tu 8 = 2-1-4-3-2-1 = tbud 9 = 3-4-2-1-4 = trbd 0 = 2-1-3-4-2-3 = trblu to the top - the Quadoo Alphabet as text version including punctuation

several graphic print versions of the Quadoo Alphabet

[ text version   Quadoo-Line-Code ]

For the Quadoo Alphabet, only the sides and diagonals of a square are used (two lines horizontally, two vertically and two diagonally) which makes it very easy to write with a stencil. There are no circles or arcs in the letters and numbers that the blind can only write inaccurately, only the punctuation marks contain dots.

And best of all: Quadoo contains clearly defined numbers. All characters are derived from the black text, which gives a high re-recognition effect and makes it easier to read optically than Moon. If the size is right, Quadoo will feel good too.

Writing by hand with the stencil of squares
suitable underlay: drawing board 'DraftsMan'
or the Quadoo Writing Slate (Draft)

Also the 'Moon-Writer' is suitable for Quadoo.

Draft of electronic input with 6 buttons

Here is an excerpt in the square script for the blind. Convince yourself of the visual readability of Quadoo:


zur to decrypt quadoo codeas a numeric code or for the conversion of Quadoo


( see also development of writings for the blind )


the quadoo writing by Alexander Fakoo is useful for all

© Legal Aspects:


Do you have ideas for marketing?
Would you like to use Quadoo for promotional purposes?
Get in  contact with me, get a license.

Terzi Alphabet and Freemason Code

1670 by the Italian Francesco Lana di Terzi, but his alphabet was intended from the outset for the blind to hide secrets:

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Helen Keller and her square script

Helen Keller used a square font other than Quadoo, in which the letters were written very square. Here first write attempts from 1887:



more informations about Helen Keller on the Page about Lorm Alphabet

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Applications of the Quadoo Alphabet

all digital clocks of fakoo.de


Quadoo as a thread writing:

- do you want to create your own texts?


Quadoo as a construction script or workroom font:

- do you want to create your own texts?


But even that is possible - Quadoo on a braille display (4 × 4 dots):




Comparison Braille, Dotty-Moon and Dotty-Quadoo (5 × 5 dots):

Table for grid 5 × 5 dots or 4 × 4 dots

here you can encrypt or decode Quadoo

small, smaller, smallest:
[5 × 5 Pixel]
[4 × 4 Pixel]

Using Quadoo for touch exercises, employment therapies or artistic designs - do you want to create your own texts?

 
Matchstick font or font of branches



Quadoo as a button font for labeling textiles


Assignment of the Quadoo alphabet to the 64 possible 6-line characters:

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The problem with the question mark

The most difficult point in this writing is the question mark, because it should be detectable without confusion and must also satisfy tactile as well as optical requirements.

In the course of development different question marks were tested, but different requirements depending on the representation, the tactile and optical readability of the text and the restriction to the square of 6 lines and 5 dots, no variant is to be regarded as optimal.



The last choice fell on the unused character lines , where a dot expansion was possible and which tactile is well detectable. In some representations of the alphabet is deviated from it.

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