NAME¶
displays - Display Configuration File
DESCRIPTION¶
The interactive graphics programs Caesar, Magic, and Gremlin use two separate
terminals: a text terminal from which commands are issued, and a color
graphics terminal on which graphical output is displayed. These programs use a
displays file to associate their text terminal with its corresponding
display device.
The
displays file is an ASCII text file with one line for each text
terminal/graphics terminal pair. Each line contains 4 items separated by
spaces: the name of the port attached to a text terminal, the name of the port
attached to the associated graphics terminal, the phosphor type of the
graphics terminal's monitor, and the type of graphics terminal.
An applications program may use the phosphor type to select a color map tuned to
the monitor's characteristics. Only the
std phosphor type is supported
at UC Berkeley.
The graphics terminal type specifies the device driver a program should use when
communicating with its graphics terminal. Magic supports types
UCB512,
AED1024, and
SUN120. Other programs may recognize different
display types. See the manual entry for your specific application for more
information.
A sample displays file is:
/dev/ttyi1 /dev/ttyi0 std UCB512
/dev/ttyj0 /dev/ttyj1 std UCB512
/dev/ttyjf /dev/ttyhf std UCB512
/dev/ttyhb /dev/ttyhc std UCB512
/dev/ttyhc /dev/ttyhb std UCB512
In this example,
/dev/ttyi1 connects to a text terminal. An associated
UCB512 graphics terminal with standard phosphor is connected to
/dev/ttyi0.
FILES¶
Magic uses the displays file ~cad/lib/displays. Gremlin looks in
/usr/local/displays.
SEE ALSO¶
magic(1)