Grinnell Image Display (obsolete)
- Supported device
- Grinnell GMR-270 Image Display System.
- Device type code
/GRINNELL.
- Default device name
TV_DEVICE (a logical name, usually
defined by the system manager).
- Default view surface dimensions
- Depends on monitor.
- Resolution
- The full view surface is 512 x 512 pixels.
- Color capability
- Color indices 0--255 are supported. The
representation of all color indices can be changed.
- Input capability
- The graphics cursor is a white cross-hair. The
user positions the cursor using the arrow keys and PF1--PF4 keys on
his terminal keyboard (
SYS$COMMAND). The arrow keys move the cursor in
the appropriate direction; the size of the step for each keystroke is
controlled by the PF1--PF4 keys: PF1 = 1 pixel, PF2 = 4 pixels,
PF3 = 16 pixels, PF4 = 64 pixels. The user indicates that the
cursor has been positioned by typing any character other than an
arrow or PF1--PF4 key [control characters, e.g., ctrl-C, and other
special characters should be avoided, as they may be intercepted by
the operating system].
- File format
- It is not possible to send Grinnell plots to a
disk file.
- Obtaining hardcopy
- Not possible.
- Author
- T. J. Pearson, 1989.