CONTENTS; 1. COMMAND LIST ....................................................................................................................................4 ; 2. INTRODUCTION ....................................................................................................................................6 - Page 150

2001/10/02 

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