Errata

Please add in this line:

Development Editor: Robyn Thomas

underneath

Editor: Steve Weiss

I have found on error in section 1.2.1. I'm using the Safari Books Online version, so there are no page numbers. The passage "...she doesn't don't fall..." has an extra "don't" in it, I think.

Note from the Author or Editor:
page 6 3rd paragraph. Should read:

"she doesn't fall".

I found two things in this paragraph.
1. 'the richness of interactive system' should be 'the richness of an interactive system'
2. The 'or' in ' "principle of least surprise" or express' should be removed.

Note from the Author or Editor:
should be:

"the richness of interactive systems"

and

"principle of least surprise" express"

I think "pleasant to a use;" should be either "pleasant to use" or "pleasant to a user".

Note from the Author or Editor:
should be:

pleasant to a user

"Doug Englebar's" should be "Doug Engelbart's".

Note from the Author or Editor:
change to

Doug Engelbart's

"many kinds interaction" should be "many kinds of interaction"

Note from the Author or Editor:
change:
"many kinds interaction"
to
"many kinds of interaction"

"develop novel desktops environments" should be "develop novel desktop environments"

Note from the Author or Editor:
should read:

"develop novel desktop environments"

"in a somewhat more subversive ways as well" should be "in somewhat more subversive ways as well"

Note from the Author or Editor:
should read:

in somewhat more subversive ways as well

"viewing of a spectacle or a playing with some" should be "viewing of a spectacle or playing with some"

Note from the Author or Editor:
should read:

"viewing of a spectacle or playing with some"

"reactive to user's actions" should be "reactive to the user's actions" or "reactive to user actions"

Note from the Author or Editor:
should read;

"reactive to user actions"

The code under the line that starts:

"Here is where you initialize the BlinkM."

There are two loop functions that are started (one is completed). I believe the first loop-function fragment should be removed:

void loop()
{
int num;
int i = 0;
if(Serial.available()) {
delay(10);
while (Serial.available())
{
serInStr[i] = Serial.read();
if(++i >= 6)
break;
}

void loop()
{
if(Serial.available() >=6) {
for(int i=0; i < 6; i++) {
serInStr[i] = Serial.read();
}
}

Note from the Author or Editor:
The code listing should read:

BlinkM_beginWithPower(); // start up the blinkM
BlinkM_setAddress( blinkm_addr ); // set the address
BlinkM_stopScript(blinkm_addr); // stop the BlinkM from running its script
Serial.begin(9600);
}

void loop()
{
if(Serial.available() >=6) {
for(int i=0; i < 6; i++) {
serInStr[i] = Serial.read();
}
}

I think "Nicolas Zambetti" should be "Nicholas Zambetti".

Note from the Author or Editor:
p.279

"Nicolas Zambetti"

should be written

"Nicholas Zambetti".

the book says:
char thirdLetter = a + b; // this won't become 'ab' or 'c'

a + b should be 'a' + 'b' because otherwise it will try to add two variables named a and b.

Note from the Author or Editor:
should read:

char thirdLetter = 'a' + 'b'; // this won't become 'ab' or 'c'

Text beginning

Note from the Author or Editor:
Should read:

"The previous sets..."

Note from the Author or Editor:
should be "++ and --"

3rd example

Note from the Author or Editor:
should be "'7' is 55"

Note from the Author or Editor:
Change to:

Passing Parameters to a Function

Note from the Author or Editor:
Should read:

"This previous function..."

the book says:
there are two ways of representing numbers in Processing in particular and computing in general: RGB and hexadecimal.

shouldn't it say "representing colors"?

Note from the Author or Editor:
should read:

there are two ways of representing colors in Processing in particular and computing in general: RGB and hexadecimal

the book says:
fill int(value1, int value2, int value3)

the first parenthesis should come before the first int.

Note from the Author or Editor:
should read:

"fill (int value1, int value2, int value3)

Note from the Author or Editor:
So, in the previous example, you'll use..

the declaration for digitalWrite is missing pinNumber.

Note from the Author or Editor:
page 110 should read:

digitalWrite(value, pin)
This method sets a digital pin to HIGH if value is high or LOW if value is low, which

the filenames at the top:

HelloWorld.cpp and HelloWorld.h

should be changed to HelloWorldApp.cpp and HelloWorldApp.h

(or of course all class names and includes should be changed instead)

Note from the Author or Editor:
Filenames should read:

HelloWorldApp.cpp and HelloWorldApp.h

// once again, just a little message to say 'hello'
printf(" howManyClasses method says: 'just one class' ' \n");

should be

// once again, just a little message to say 'just one class'
printf(" howManyClasses method says: 'just one class' \n");

also note the double ' sign just after class

Note from the Author or Editor:
should read:

printf(" howManyClasses method says: 'just one class' \n");

'following code snippet' should be 'preceding code snippet'.

Note from the Author or Editor:
Should read:

"In the preceding code snippet,"

The meaning of this paragraph is unclear because of two sentences that seem to be in opposition.

"If you have a video file, a huge photo, or a lot of sound data, you don't want to be making copies of that all over your program"

"The judicious use of the pointer is a way to allow different parts of a program to access a variable and alter that variable by making multiple copies of it"

On a plain reading these sentences are confusing. The first sentence says that you don't want to be copying large objects like videos. The second sentence confusingly suggests that pointers can be used to create multiple copies of these things (precisely what you don't want to be doing!).

Note from the Author or Editor:
should read:

"that variable without making multiple copies of it"

in the .cpp example, int NameOfClass::publicMethod() should be int NameOfClass::privateMethod()

Note from the Author or Editor:
code listing should read:

int NameOfClass::privateMethod() {
//do some other stuff
}

it says ofUils instead of ofUtils

Note from the Author or Editor:
graphic has typo and should read ofUtils.

bool needs to change to boolean for processing

Note from the Author or Editor:
Line:

bool isPlaying = false;

should be:

boolean isPlaying = false;

Note from the Author or Editor:
Calculates a number between two numbers at a specific increment. lerp is actually short for linear interpolation

(these are called fiducials. It is, however, a start on the road to being able to do that and should give you some ideas as you consider how to create the interaction between your users and your system.

Note from the Author or Editor:
(these are called fiducials). It is, however, a start

name should be:

Martin Kaltenbrunner

it's spelled incorrectly.

Note from the Author or Editor:
Submitted by author.