The intelligence of the command interpreter also ensures error-tolerant
input. Input requests are backed up by appropriate default values.
Efficient input means are
- menus (especially for object-structured data acquisition and
editing),
- macro commands for frequently recurring operations, and
- manual entry.
The menu system in particular is a user-friendly entry method. The photo-
grammetric operator or cartographic editor can concentrate on the task on
hand without concerning himself with input commands or object structures.
PHOCUS therefore contains a versatile menu system. It comprises:
- The TABLET menu, an overlay that can be arranged freely on the
tablet of the P1/P3 Planicomp or the PD digitizing subsystem
(up to 4 overlays).
- The Planicomp menu for defining the soft keys of the Planicomp
P-Cursor (Fig. 5) or the foot switches, if available.
- The DIGITIZER menu for defining the soft keys of the so-called
D-Cursor of the PD digitizing subsystem.
- The GRAPHICS menu, a menu line on a graphics screen.
- The PANEL menu for defining the soft keys of an additional command
panel (PHOCUS Panel).
- The SOFT-KEY menu for defining the soft keys of an alphanumeric
terminal (e.g. the system console).
At system installation time, the user is provided with a large number of
ready-made menus that facilitate general handling (calling application
functions, parameter entry, help) and support special applications (e.g.
measurement and editing functions).
Travel keys
Soft keys
Z thumbwheel
Cross-hairs
Fig. 5: The P-Cursor -
The main control element for the P1/P3 Planicomp Operator
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