Byte ; Data ; MSB - Page 86

2001/10/02

CHAPTER 2 "PCL" - 66 

<Intellifont-scalable contour data> 

MSB   

     LSB 

4 

Contour Data size 

6 

Metric data offset 

8 

Character Intellifont data 

offset 

10 

Contour tree offset 

12 

XY data offset 

14 

Metric data 

Character Intellifont Data 

Contour tree data 

XY coordinate data 

<Continuation data for Intellifont scalable contour data>  

Byte 

Data 

0-1 

Format  

Continuation 

2 - 3 

Continuous contour character data 

Last 

Reserved 

Checksum 

<Compound character data of Intellifont scalable font>  

Byte 

Data 

0-1 

Format 

Continuation 

2 - 3 

Descriptor size 

Class 

4 - 5 

Compound character escarpment 

6 - 7 

piled character number 

ignore 

8 - ... 

piled character list ( 6 byte x characters ) 

Last 

 Reserved 

checksum 

• 

Format (UB)  

- specifies the character format. 

Value 

Format   

4 

Bitmap font 

10 

Intellifont-scalable font 

15 

TrueType scalable font 

• 

Continuation (B) - signifies whether the character data represents a new character (0) or is a continuation of 
the character described by the previous character descriptor block and its data (non-zero).  If the continuation 
byte is non-zero the bytes following it are interpreted as character data. 

• 

Descriptor size (UB) - specifies the character descriptor size in bytes. 

• 

Class (UB) . indicates the character format. 

Value 

Class 

1 

Bitmap 

2 

Compressed Bitmap 

3 

Contour (Intellifont scalable) 

4 

Compound Contour (Intellifont scalable) 

15 

TrueType Scalable 

• 

Contour data size (UI) - specifies the contour data size. 

• 

Metric Data offset (SI) - relative to the address of the contour data size field. 

• 

Contour Tree Offset (SI) -relative to the address of the contour data size field. 

• 

XY Data Offset (SI) -relative to the address of the contour data size field. 

• 

Metric Data  

• 

Character Intellifont Scalable Data  

• 

Contour Tree Data  

• 

XY Coordinate Data 

• 

Checksum - this value is placed at the end of the character data. 

• 

Compound character escapement (SI)  

• 

Piled character number (UB)  

• 

Piled character list - includes some piled characters.  Each of them is 6 bytes.