GDDM-PGF V2R1.3 Vector Symbol Editor
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Drawing a vector symbol using the compass keys GDDM-PGF V2R1.3 Vector Symbol Editor SC33-0330-01 |
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You have seen how to use the LINE command; however, you can also use some of the PF keys to draw vectors, provided that your PF keys are laid out suitably. If your keyboard has a set of twelve PF keys on the right, with a group of them, called the compass keys, arranged as shown in Figure 3, this group can be used to draw vectors from the current position in directions corresponding to the major points of the compass. The length of the vector to be drawn is displayed in the "Delta X" and "Delta Y" fields. Using the compass keys is equivalent to using the LINE command with the BY parameter. When the Symbol Edit panel is displayed, the editor gives the x-and y-delta values that equal the distance between the grid lines (a grid interval). You can alter these values at any time.
Note: Not all terminals have a keyboard with this arrangement of PF keys. If you do not have a pad of PF keys on your terminal like the keys in Figure 3, you will probably find it difficult to use the compass keys when you draw your own symbols. If you think that you will not use the compass keys when you draw your own symbols, draw another arrow with LINE commands and continue with the next section, "Controlling the current vector" in topic 2.7. The compass keys are not available when you are using an interactive | graphics terminal, such as the 3179-G, 3270-PC/G, and 3270-PC/GX. Refer | to Appendix B, "Using the editor on an interactive graphics terminal" in | topic B.0 if you are using one of these terminals or other interactive | graphics terminals. When you use the compass keys, the PF key in the middle of the set, PF8/20, can be used to delete the current vector. Pressing PF8/20 causes the previous vector to become current. You are now going to use the compass keys to draw another arrow at different grid coordinates like this: Subtopics: |
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