Apple Newton Utilities User's Guide download pdf (Page 294)

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CHAPTER 8

Text and Ink Input and Display

8-2 About Text

When the user writes a line of text on the Newton screen, the Newton system

software performs a series of operations, as follows:

■ The raw data for the input is captured as ink, which is also known as sketch ink

or raw ink.

■ Raw ink is stored as a sequence of strokes or stroke data.

■ If the view in which the ink was drawn is conﬁgured for ink text, the recognition

system groups the stroke data into a series of ink words, based on the timing

and spacing of the user’s handwriting. A user can insert, delete, and move ink

words in the same way as recognized text. Ink words can be scaled to various

sizes for display and printing. They can also be recognized at a later time, by a

process known as deferred recognition.

■ If the view in which the ink was drawn supports or is conﬁgured for text

recognition, the ink words are processed by the recognition system into

recognized text and displayed in a typeface.

The data describing the handwriting strokes of the ink word are stored as compressed

data in a binary object. This stroke data can be accessed programmatically, using

the stroke bundle methods described in “Recognition” (page 9-1) in Newton

Programmer’s Guide.

The recognition system and deferred recognition are described in “Recognition”

(page 9-1).

Note

To provide maximum user ﬂexibility for your applications, you

are encouraged to allow ink text in all of your input views.

◆

Written Input Formats 8

Ink words can be intermixed with recognized text. This data, normally represented

as rich strings, can be used anywhere that you might expect a standard string.

Each ink word is encoded as a single character in a rich string, as described in

“Rich Strings” (page 8-22).

You should use the rich string format to store data in a soup, because of its

compact representation. You can safely use rich strings with all functions, including

the string functions, which are documented in “Utility Functions” (page 26-1).

Another data format, described in “Text and Styles” (page 8-25), pairs text strings

with style data for viewing in text views.

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