JES 3.1 Book Corrections

Legend

$ - Possible missing media sources
* - Things possibly broken with this release
+ - Things definitely broken (or depreciated) with this release

2.4.2 - Playing a Sound

print makeSound(pickAFile()) (p. 25)*
- shows "Sound file: /Users/guzdial/mediasources/hello.wav number of samples: 54757"
- book shows "Sound of length 54757"

3.2 - Manipulating Pictures

print pixel (p. 47)
- shows "Pixel red=168 green=131 blue=105"
- book shows "Pixel, color=color r=168 g=131 b=105"
makeDarker and makeLighter (p. 49)
- These functions are non-destructive and only return a new color. The original is unchanged
"If you have used pickAFile() recently, the default directory will be whatever you picked the file from." (p. 50)*
- does not seem to be the case

3.4 - Creating a Sunset

Color wrap-around related changes

3.4.1 - Making Sense of Functions

Alternate of Recipe 12 reduceBlue (with filename, p. 64)
- should be "picture = makePicture(filename)"
- book says "filename = makePicture(filename)"

3.5 - Lightening and Darkening

makeDarker and makeLighter (Recipes 13&14, p. 67)
- These functions are non-destructive and only return a new color. The original is unchanged

4.1.1 - Looping Across Pixels with range

makeDarker and makeLighter (Recipe 18, p. 76)
- These functions are non-destructive and only return a new color. The original is unchanged

4.2 - Mirroring a Picture

Figure 4.3 (p. 79)
- should be "Santa mirrored horizontally, top to bottom (left) and bottom to top (right)."
- book says "Santa mirrored horizontally, bottom to top (left) and top to bottom (right)."

4.3.2 - Creating a Collage

Figures 4.10 & 4.11 (p. 89)$
- not the same "flower1.jpg" or "flower2.jpg" images as in mediaSources

4.4 - Replacing Colors: Red-Eye, Sepia Tones, and Posterizing

setColor (Recipes 33&34, pp. 101,102)
- should be "setColor(px,makeColor(redness,greenness,blueness))"
- book says "setColor(px,makeColor(redness,blueness,greenness))"

4.4.1 - Reducing Red-Eye

red = makeColor(255,0,0)
- not really necessary, as red is a built in constant, but it doesn't hurt

4.4.2 - Sepia-Toned and Posterized Pictures: Using Conditionals to Choose the Color

sepiaTint (Recipe 36, pp. 104-105)
- Should a temp value be used for red and blue? checking if red >255 is unnecessary
- Text about color wrap around (p. 105)

5.3 - Chromakey

chromakey2 (Recipe 44, p. 122)
- should be "for p in getPixels(source):"
- book says "for p in pixels(source):"
Getting the resulting images shown in this section from the given code is not very intuitive.

5.4.1 - Drawing with Drawing Commands

addABox (Recipe 46, p. 125)$
- "beach-smaller.jpg"; only a "beach.jpg" is in MediaSources-MainImages

6.2.1 - Open Sounds and Manipulating Samples

print sound (p. 146)*
- shows "Sound file: /Users/guzdial/mediasources/preamble.wav number of samples: 421110"
- book shows "Sound of length 421109"
print samples (p. 146)*
- crashes JES
getSampleValueAt (p. 147)
- Those are not the right numbers (43009 and 43010) for the samples of the preamble (421109 or 421110)
Out of range indexes for Sounds (p. 147)
- error messages are screwy

6.2.3/6.3.1-6.4.1/7.3 - Introducing the Loop / Increasing Volume - Generating Clipping / Backwards Sounds

setSample/getSample (Recipes 51-55&61, pp. 152-154,157-158,160-165,177)+
- Depreciated, should be setSampleValue/getSampleValue

6.4 - Normalizing Sounds

normalize (Recipe 54, p. 162)
- should take absolute value of sample when searching for largest

7.2/8.2 - Splicing Sounds / Blending Sounds

merge/blendSounds (Recipes 58&62, pp. 171,182)$
- No "sec3silence.wav" in MediaSources and a 3 second empty sound does not have enough samples

8.3.1 - Creating Multiple Echoes

echoes (Recipe 64, p. 184)+
- uses old makeEmptySound

8.5.1/8.5.4/8.5.5 - Making Sine Waves / Square Waves / Triangle Waves

sineWave/squareWave/triangleWave (Recipes 70,72&73, pp. 191,194,196)$
- No "sec1silence.wav" in MediaSources

9.1.1 - Top-down

pay (p. 203)
- should be 'print "Gross pay:",gross' & 'print "Net pay:",gross-taxableAmount'
- book shows 'print Gross pay:,gross' & 'print Net pay:,gross-taxableAmount'

9.2.3 - Seeing the Variables (p. 207)+

States "We can PAUSE execution" in reference to the debugger

10.2 - String: Making and Manipulating Strings

Syntax error (p. 215)
- a syntax error shows
```
"    Invalid syntax
    Your code contains at least one syntax error, meaning it is not legal jython."
```
- book shows "Your code contains at least one syntax error, meaning it is not legal jython."

printing u"\uFEED" and u"\u03F0" (p. 216)*

gives the error

" The error was: ordinal not in range(128)
    Unicode related error.
    An error occurred while encoding or decoding Unicode characters."

10.2.1 - String Methods: Introducing Objects and Dot Notation

print test.capitalize (p. 218)
- should print ""
- book shows ""

print capitalize(test) (p. 218)

name error prints

"   The error was:capitalize
    Name not found globally.
    A local or global name could not be found. You need to define the function or variable before you try to use it in any way."

book shows "A local or global name could not be found. You need to define the function or variable before you try to use it in any way."

print 12.capitalize()
- same missing "Invalid syntax" as from 10.2 (p. 215)

10.3.3 - Writing Out Programs

findTemperature (pp. 229-230)

new address is http://www.ajc.com/news/content/news/weather/index.html

relevant code is

   <td class="wthrCurrentStatsTemp">
    <p><img src="http://www.statesman.com/shared-local/weather/images/ms.gif" alt="Mostly Sunny" /></p>
    <p class="whtrTemp">81&deg;F</p>
    <p>Mostly Sunny</p>
    <p>as of 07:50:05 PM </p>
    </td>

curloc should be "wthrCurrentStatsTemp"
temploc should be "°"

10.4.2 - Another Fun Module: Random

if input.find(mother) <> -1: (p. 234)
- Should be 'if input.find("mother") <> -1:'

10.5 - Networks: Getting Our Text from the Web

64.236.24.20 is no longer a CNN IP (p. 235)
- 64.236.16.20 is the current primary
findTemperatureLive (Recipe 82, pp. 236-237)
- Needs the same changes as described in 10.3.3 for findTemperature
ftplib (p. 237)
- cleon.cc.gatech.edu is unconnectable

10.6 - Using Text to Shift Between Media

getSample (Recipe 83, p. 239)+
- Depreciated, should be getSampleValue
textToSound (Recipe 84, p. 240)$
- No "sec3silence.wav" in MediaSources
soundToPicture (Recipe 85, p.242)
- Figure 10.6 is rotated 90 degrees counter-clockwise from the actual result

10.6.1 - Using Lists as Structured Text for Media Representations

getSample (Recipe 86, p. 242)+
- Depreciated, should be getSampleValue

11.1 - HTML: The Notation of the Web

Figures 11.4 & 11.5 (p. 251-252)$
- not the same "flower1.jpg" image as in mediaSources

11.2 - Writing Programs to Generate HTML

findTemperatureLive (Recipes 93-94, pp. 256-257)
- Needs the same changes as described in 10.3.3 and 10.5

Links to this Page

JES Downloads last edited on 17 December 2009 at 9:43 am by 68-184-87-108.dhcp.smyr.ga.charter.com
JES 3.1beta Downloads last edited on 8 January 2009 at 5:34 pm by c-24-99-60-91.hsd1.ga.comcast.net