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10/10/03
CHAPTER 4 HP-GL/2 - 2
C
ONTENTS
1.
COMMAND LIST..................................................................................................................4
2.
INTRODUCTION .................................................................................................................. 6
3.
TERMINOLOGY ................................................................................................................... 7
3.1.
Picture Frame........................................................................................................................... 7
3.2.
Anchor Point ............................................................................................................................ 7
3.3.
Graphics Window..................................................................................................................... 7
3.4.
Hard Clip Limits........................................................................................................................ 7
3.5.
Soft Clip Limits ......................................................................................................................... 7
3.6.
Graphics Units ......................................................................................................................... 7
3.7.
User Units ................................................................................................................................ 7
3.8.
Current Units............................................................................................................................ 7
3.9.
Pens......................................................................................................................................... 7
3.10.
Absolute and Relative Plotting ................................................................................................. 8
3.11.
Fills........................................................................................................................................... 8
4.
COMMAND SYNTAX ...........................................................................................................9
4.1.
Mnemonic................................................................................................................................. 9
4.2.
Parameters............................................................................................................................... 9
4.3.
Separators ............................................................................................................................... 9
4.4.
Terminator................................................................................................................................ 9
5.
THE HP-GL GRAPHICS WINDOW.................................................................................... 10
5.1.
Units....................................................................................................................................... 10
5.2.
The Scaling Points P1 and P2 ............................................................................................... 10
5.3.
Scaling ................................................................................................................................... 10
5.4.
Transformation....................................................................................................................... 10
6.
PREPARING TO PRINT GRAPHIC IMAGES .................................................................... 11
6.1.
Setting Up the Graphics Window ........................................................................................... 11
6.2.
Using Existing Image Plots .................................................................................................... 11
6.3.
Printing an Image................................................................................................................... 11
6.4.
Entering HP-GL/2 Mode......................................................................................................... 11
6.5.
Quitting HP-GL/2 Mode.......................................................................................................... 11
7.
COMMANDS ...................................................................................................................... 12
7.1.
Initialize Commands............................................................................................................... 12
7.2.
Plot Area and Unit Setting Instructions .................................................................................. 14
7.3.
Pen Control and Plot Instructions .......................................................................................... 18
7.4.
The polygon group ................................................................................................................. 25
7.5.
Plot Function Instructions....................................................................................................... 30