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was located within the grid.
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There was many ways of doing this, but I opted for the following
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rectangle (10 x 5 characters):
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1.2.3.4.5.
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2.A.B.C.D.
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3.E.F.G.H.
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4.I.J.K.L.
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5.M.N.O.P.
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This rectangle was then replicated horizontally and vertically
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until an area the size of an 8.5" x 11" page was filled up. I
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later decided to replace the periods by spaces to "lighten" the
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grid. This created an electronic grid which looked like this:
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1 2 3 4 5 1 2 3 4 5 1 2 3 4 5 1 2 3 4 5 1 2 3 4 5 1 2 3 4 5 1 2 3 4 5 1 2 3 4
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2 A B C D 2 A B C D 2 A B C D 2 A B C D 2 A B C D 2 A B C D 2 A B C D 2 A B C
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3 E F G H 3 E F G H 3 E F G H 3 E F G H 3 E F G H 3 E F G H 3 E F G H 3 E F G
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4 I J K L 4 I J K L 4 I J K L 4 I J K L 4 I J K L 4 I J K L 4 I J K L 4 I J K
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5 M N O P 5 M N O P 5 M N O P 5 M N O P 5 M N O P 5 M N O P 5 M N O P 5 M N O
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1 2 3 4 5 1 2 3 4 5 1 2 3 4 5 1 2 3 4 5 1 2 3 4 5 1 2 3 4 5 1 2 3 4 5 1 2 3 4
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2 A B C D 2 A B C D 2 A B C D 2 A B C D 2 A B C D 2 A B C D 2 A B C D 2 A B C
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3 E F G H 3 E F G H 3 E F G H 3 E F G H 3 E F G H 3 E F G H 3 E F G H 3 E F G
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4 I J K L 4 I J K L 4 I J K L 4 I J K L 4 I J K L 4 I J K L 4 I J K L 4 I J K
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5 M N O P 5 M N O P 5 M N O P 5 M N O P 5 M N O P 5 M N O P 5 M N O P 5 M N O
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The characters 1 to 5 produced horizontal and vertical guidelines.
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With these guidelines, I could quickly locate the approximate area
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of the grid that I wanted to work on. To pinpoint the exact
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location, I relied on the letters A to P which appeared only once
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inside each rectangle.
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Of course, the electronic grid alone was not very useful until I
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could somehow relate it to the drawing. To do so, I printed out
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the grid and then photocopied it on an acetate for reusability.
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Then, whenever I wanted to work on a picture, I taped a photocopy
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of it to the back of the acetate and brought up the electronic grid
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on the screen. By the intermediary of the grid, I automatically
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had a relationship between the picture on paper and the screen.
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TIP: If you ever print a grid on an acetate, make sure to cover the
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acetate with clear tape afterwards to prevent your fingers
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from eroding the toner. I learned the hard way.
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Now, back to Mona. You may find the discussion a little difficult
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to follow at times without a picture, so either find a copy of the
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Mona Lisa or print out this file.
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In search of a decent reproduction of the Mona Lisa I went to the
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closest library and found an excellent example on page 25 of the
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book "Leonard de Vinci" published by McGraw-Hill in 1974. The
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picture measured about 9.5" x 12" and was in full colour.
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Next, I photocopied the picture. The lowest darkness setting gave
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the best result, but was still a little bit too dark in certain
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areas to distinguish some of the lines. Before addressing that
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problem, I decided to cut the photocopy so that the resulting
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picture could fit in 55 lines by 78 columns. This was
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approximately double the height of the head and was wide enough to
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show a large portion of both shoulders.
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To make the barely discernable lines more visible, I highlighted
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them with a blue pen. I made sure to draw those lines about one
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sixteenth of an inch thick so they would be clearly visible.
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Experience had taught me that very fine lines were often too
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difficult to distinguish from a dark background once the grid was
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superimposed on the picture. The affected lines were: the lines
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between veil and hair, hair and background, chin and throat, and
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the lines on each side of the face and on each side of the arched
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garment extending to her left shoulder (referred to as the shawl in
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the rest of this document). While I was at it, I also highlighted
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the contours of the lips, nose and eyes in the same manner. I then
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taped the touched up photocopy behind the acetate which had the
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grid.
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The next step was to load the electronic version of the grid in my
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favourite word processor (WordPerfect). Before starting work, I
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decided to represent the dark areas of the picture with an "8" (I'm
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sure you guessed that), the shawl with an "I" and the veil with an
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"8" if it was covering any hair and with an "I" if it was not (or
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to show its border in the hair). I chose those characters since
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they contrasted very well: it was easy to distinguish a line of
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I's in an area filled with 8's.
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Then, I determined which character of the acetate corresponded to
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the top of her left shoulder and located that character on the
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electronic grid. While holding the acetate in my left hand and
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marking my position on it with my thumb, I delimited the contour
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(only one character wide) around the bottom of the picture (counter
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clockwise) up to her right shoulder by replacing the characters of
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the grid with 8's except for the ends of the shawl which needed
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I's.
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I then continued up the picture, line by line, while overwriting
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the grid's characters with spaces until I got to the first
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character delimiting the border of Mona's hair or veil, as
|
determined from the acetate. At that point, I typed one of four
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characters: "8", "d", "`" or "," depending on which one
|
corresponded best to the dark portion of the picture at that
|
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