3. COMMANDS; 3.1. Initialization and Default Setting Instructions; Function Equivalent - Page 357

CHAPTER 9 HP-GL - 6 

3.

COMMANDS 

3.1.

Initialization and Default Setting Instructions 

DF - Default set instruction 

DF[;] 



Returns the graphics mode to the default conditions. 



The following are the default settings. 

Function Equivalent 

Instruction 

Condition 

Plot mode 

PA; 

Absolute plotting 

Relative character direction DR 

1,0;  Horizontal 

Line type 

LT; 

Solid line 

Line pattern length 

LT; 

4% of distance from P1 to P2 

Window 

IW; 

Set at limits of printable area 
according to paper size 

Relative character size 

SR; 

Width=0.75% of  |P2x - P1x| 
Height=1.5% of |P2y - P1y| 

Symbol mode 

SM; 

Off 

Tick length 

TL; 

X-axis: 0.5% of |P2y - P1y| 
Y-axis: 0.5% of |P2x - P1x| 

Standard character set 

CS 0; 

Character set 0 

Alternate character set 

CA 0; 

Character set 0 

Character set 

SS; 

Standard character set selected 

Character slant 

SL 0; 

0 degrees 

Scaling SC; 

Off 

Label terminator 

DT chr$(3) 

chr$(3) 

Chord angle  

----- 

5 degrees 

Fill type 

FT; 

Bi-directional fill, type 1 

Fill distance 

FT; 

1% of distance from P1 to P2 

Fill slant 

FT; 

0 degrees 

Pen Thickness 

PT; 

Set at 0.3 mm 

NOTE: 

The location of the scaling points(P1, P2) remains constant. 

IN - Initialize set instruction 

IN[;] 



Returns the graphics mode to the following initial conditions; 

Function Equivalent 

Instruction 

Condition 

Plot mode 

PA; 

Absolute  

Relative character direction DR 

1,0; Horizontal 

Line type 

LT; 

Solid line 

Line pattern length 

LT; 

4% of distance from P1 to P2 

Window 

IW; 

Set at limits of printable 
area according to paper size 

Relative character size 

SR; 

Width=0.75% of |P2x-P1X| 
Height=1.5% of |P2y-P1y | 

Symbol mode 

SM; 

Off 

Tick length  

TL; 

X-axis: 0.5% of |P2y-P1y | 
Y-axis: 0.5% of |P2x-P1x| 

Standard character set 

CS 0; 

Character set 0 

Alternate character set  

CA 0; 

Character set 0 

Character set 

SS; 

Standard character set 
selected 

Character slant 

SL 0; 

0 degrees 

Scaling SC 

; 

Off 

Label terminator 

DT chr$(3) 

chr$(3) 

Chord angle 

----- 

5 degrees