Plot Function Instructions ; FT - Fill type ; FT [ n [, d [, q]]] [;] - Page 343

2001/10/02 

CHAPTER 9 HP-GL - 18 

3.5. 

Plot Function Instructions 

Instruction 

Function 

FT 

Fill Type 

LT 

Line Type 

PW 

Pen Width 

SM 

Symbol Mode 

SP 

Select Pen 

TL 

Tick Length 

XT 

X Tick 

YT 

Y Tick 

PT 

Pen Thickness 

FT - Fill type 

FT [ n [, d [, q]]] [;] 

n : Fill type 

d : Fill interval (interval between the parallel lines of the area being filled) 

q : Fill angle (degrees ) 

• 

Sets the fill type,  interval and angle when filling an area.  

• 

The value for n is a clamped integer number. 
 

Solid lines (bi-directional fill) 

Solid lines (single direction fill) 

Parallel lines 

Crosshatching 

• 

The fill interval when n is 1 or 2 is the interval set by the pen thickness (PT) instruction. 

• 

Any value given for d when n is 1 or 2 will be ignored. 

• 

If d is omitted,  the fill interval already specified will be used. 

• 

If d is 0,  the default value will be used ( 1% of distance from P1 to P2. ) 

• 

The value of d is a clamped real number . 

• 

If q is omitted,  the fill angle already specified will be used. 

• 

The value of q is a clamped real number. 

LT - Line type selection 

LT [, n [, p ]] [;] 

n ; Line pattern number 

p ; Line pattern length (percentage or millimeters of distance between P1 and P2) 

• 

Specifies the line type and pattern length. 

• 

When the n parameter field is omitted a solid line is selected. 

• 

When the p parameter field is omitted the pattern length is 4% of the distance between P1 and P2 (default 
value ). 

• 

The value of 

n

 is a clamped integer number. 

• 

The value of 

p

 is a clamped real number from 0.0000 to 127.9999. 

• 

When 

p

 is omitted the previously set line pattern length is used. 

Default  :Solid line 

:For straight line, start and end points are plotted. 

:For an arc, plotting takes place for every chord angle that is  set. 

1 :

2 :

3 :

4 :

5 :

6 :

P