Defining A Video Sequence

The sequence configuration file defines a series of maps that that are presented in succession.

Note that the elements of the sequence configuration must be in the order presented. Single-line comments may be used with the # symbol.

# sequencer.txt          
# The sequence definition for the UWTV TrafficChannel video presentation
#
# The UWTV presentation uses four maps, presented for 7500 milliseconds
# each for a total sequence time of thirty seconds.
#

4              # Number of maps in the sequence 

# If map segments, defined in the following map file definitions
# have different foreground and background colors, then the specified
# colors are alternated this frequency
500            # Duration in msec of flashing map segments

# Sequence Sound File:
# This sound file is started at the beginning of the first map
# in the sequence and is repeated each time the first map is displayed.
Sounds\scrow.wav

# interval between start times for playing sound file
#    if 0, don't play; if -1, loop continuously without interval between
60   # in seconds
 
#
#Time Synchronization Value:
# The start of the sequence is scheduled such that
# the sequence starts at the next second where the
# wall-clock time in seconds, modulus the sync value equals zero.
# The sum of the map display times in the following map definitions
# should equal this value.  
30     # in seconds

# The Map Definitions:
# -map definition filename-    -duration of map display in msec-
TrafficMaps\mainlineWest.txt        7500
TrafficMaps\hovWest.txt             7500
TrafficMaps\mainlineEast.txt        7500
TrafficMaps\hovEast.txt             7500

Traffic Channel | ITS UW Home

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(May 11, 1998)