There are three main methods for generating characters using software: the stroke method, vector/bitmap method, and starbust method. The stroke method uses a sequence of line and arc drawing functions defined by starting and end points. The starbust method uses a fixed pattern of 24 bit line segments to represent characters. The bitmap method stores characters as arrays of 1s and 0s representing pixels, allowing for variable font sizes by increasing the array size. All the methods can create aliased characters, and the starbust method requires extra memory to store the 24 bit segment codes.

1. Character Generation
Techniques

2. Characters Generation in CG
In computer graphics character can be generated using software.
 In hardware implementation of character generation limited faces of character
can be generated.
A wide variety of faces of character can be generated with software
implementation.
 There are three methods for generating characters using software
implementation:-
 Stroke method
 Vector method or bitmap method.
 Star bust method

3. Stroke Method
 In this method we use a sequence of line drawing function and arc functions to
generate characters.
 We can generate a sequence of character by assigning starting and end point of
line or arc.
By using this method various faces of character can be generated by changing the
values (parameters) in line and arc function.
Eg:-

4. Starbust Method
 In this method a fixed pattern of line is used to generate the character.
 In this method we use a combination of 24 bit line segment.
 In 24 bit line segment code each bit represent a single line.
To highlight a line we put corresponding bit 1 in 24 bit line segment code and 0
otherwise.

5. Representaion of Starbust Method:

6. Bitmap Method
 This method is suitable for producing various character.
 Font size of character can be increased by increasing the size of array.
This method uses an array of 1’s & 0’s to represent pixels.

7. Example of an Bitmap Array:

8. Disadvantages
All the mentioned methods creates aliased characters:
 In Starbust method, 24 bit segment code is required to put in memory for
generating character. Hence extra memory is required in this method . Character
quality is poor due to limited face.