SC 0,10,0,10,1,0,0- Page 164

2001/10/02 

CHAPTER 4 HP-GL/2 - 16 

• 

With 

type

 1 scaling you can specify the percentage of unused space that is to lie below,  or to the left of,  

the isotropic area. 

• 

left

 specifies the percentage of unused space you want to lie to the left of the isotropic area and can be from 0 

to 100.  If you do not specify the value for 

left

,  it is automatically set to the default value = 50%. 

• 

bottom

 specifies the percentage of unused space you want to lie below the isotropic area and can be from 0 to 

100.  If you do not specify the value for 

bottom

,  it is automatically set to the default value = 50%. 

P1(0,0)

(10,10)

P2

P2

P2

P2

P1

P1

P1

(0,10)

(10,10)

(10,0)

(10,10)

(0,0)

(20,10)

SC 0,10,0,10,1,0,0

SC0,20,0,10,1,100,100

SC 0,10,0,10,1,100,100

SC 0,20,0,10,1,0,0

Extra space

Extra space

Extra space

Extra space

• 

You must either specify both 

left

 and 

bottom

, or specify neither.  However, the printer can only use one of 

these two parameters at a time, depending where the extra space is on a page. \ 

• 

If you do not specify a percentage for unused space to the 

left 

or at the 

bottom

,  the isotropic area is centred 

in the rectangle defined by P1 and P2. 

• 

Type

 2 scaling (point factor scaling) specifies the ratio of graphics units to user units and sets user units 

coordinates for P1. 

• 

X

factor

specifies the number of graphics units that comprise a single user x-axis unit. 

• 

Y

factor

 specifies the number of graphics units that comprise a single user y -axis unit. 

• 

Valid values for X

factor

and Y

factor

are real numbers. 

• 

An SC command remains in effect until another SC command is issued,  until default settings are restored 
with the DF command or until the printer is initialized with an IN command. 

10 '-Scale-' 

20 WIDTH "LPT1:", 255 

30 LPRINT CHR$(27); "E"; 

40 LPRINT CHR$(27); "%0B"; 

50 LPRINT "IN;SP1;" 

60 '-- Anisotropic scaling -- 

70 LPRINT "PA1500,6000;EA3500,8000;" 

80 LPRINT "IP1500,6000,3500,8000;SC0,200,0,100,0;PA50,50;CI50;" 

90 LPRINT "IN;PA1500,3000;EA3500,5000;" 

100 LPRINT "IP1500,3000, 3500,5000;SC0,100,0,200,0;PA50,50;CI50;" 

110 LPRINT"IN;PA1300,8200;DT#;LBAnisotropic scaling#"; 

120 '--Isotropic scaling-- 

130 'Left,Bottom= 0,0 

140 LPRINT "PA4500,6000;EA6500,8000;" 

150 LPRINT"IP4500,6000,6500,8000;SC0,200,0,100,1,0,0;PA50,50;CI50;" 

160 'Left, Bottom = 100,100 

170 LPRINT "IN;PA4500,3000;EA6500,5000;" 

180 LPRINT"IP4500,3000,6500,5000;SC0,100,0,200,1,100,100;PA50,50;CI50;" 

190 LPRINT "IN;PA4000,82;DT#;LBIsotrop00ic scaling#"; 

200 LPRINT CHR$(27);"%0A"; 

210LPRINT CHR$(27);"E"; 

220 END 

<Sample 21>