expanding Eliza ArtLab

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expanding ElizaArtLab
2
announcements

• Rhian Davies will give a guest lecture on
  linguistics on Monday
• Guest lecture by Holger Hoos in Nov on computer
  music
• No class on Friday Nov 2(start on your projects!)
• Project descriptions on the web, will discuss in
  next class
• Interest in a powerpoint lab?

3
expanding Eliza

• the Eliza program responds to a keyword, if
  present, and otherwise gives a generic response
• how could the program do better?

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features of other Eliza programs

• use one of multiple possible responses to each
  keyword, chosen randomly
• direct the conversation back to a keyword that
  appeared earlier in the program
• respond to sentences like I _____ you with Why
  do you ______ me?
• create a lexicon of word associations, to move
  on to new subjects from old

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computer modeling of language

• represent the underlying structure of text noun
  phrases, verb phrases, determiners, and so on
• The bored students slept soundly
• The is a determiner
• bored students is a noun phrase
• slept soundly is a verb phrase
• the Eliza program could parse the text to obtain
  the underlying structure and respond accordingly

6
ArtLab

• in this lab, you can generate art using methods
  provided in a java graphics package

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drawing components in ArtLab

• line
• rectangle
• oval
• arc

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drawing a square on grid paper
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how to specify a rectangle?
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how to specify a rectangle?

• use top left and bottom right corners

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how to specify a rectangle?

• use top left corner, width, height

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(0,0)
x
y
(7,7)
top left corner (2,1) width 3 height 2
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the ArtLab drawing panel
(0,0)
x
drawing panel
(749,549)
y
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specifying a rectangle in ArtLab

• //red rectangle newShape ( ) x 550 y
  400 width 200 height 100 g2.setPaint
  (red) g2.fillRect (x, y, width, height)

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how to specify a line?
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how to specify a line?

• end point 1 (2,1)
• end point 2 (5,5)

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specifying a line in ArtLab

• //orange line newShape ( ) x1 500 y1
  200 x2 700 y2 10 g2.setPaint (orange)
  g2.drawLine (x1, y1, x2, y2)

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how to specify a circle?
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how to specify a circle?

• center (4,5)
• width 2

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specifying an oval

• center (3,2)
• width 4
• height 1

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specifying an oval in ArtLab

• //magenta oval newShape ( ) x 300 y
  200 width 120 height 75 g2.setPaint
  (magenta)

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more fun with ArtLab

• animation!
• adding randomness (possible project)