WAVE logs are text files, in the format used by `pschart' and `psfd' script
files. Typically, logs contain notes about interesting sections of one or more
records. Each entry (line) in a WAVE log contains a record name, a time
reference, and a comment. Using the `Log ...' window (accessed from the `File'
menu of WAVE's main control panel), you may create or review logs, and add,
modify, or delete entries in them. Within the WAVE menu, the name of the
current log file can be represented as `$LOG'; this feature may be used to
write WAVE extensions that extract or print segments of interest.
When the log panel is first opened, most of its controls are disabled. You
must specify a name for the log before you can use any of these controls.
Do so by typing the name into the `File:' field; press RETURN to tell WAVE
to accept the name. If the log exists already, WAVE reads its contents and
shows you its first entry. If the log does not exist, WAVE creates an empty
log with the name you have chosen. The other controls are enabled as
appropriate (for example, the `Delete' button is not enabled unless there is
an entry to delete).
The `Description:' field contains the description associated with the current
The buttons of the log panel are:
Load WAVE reads the log file into memory, after saving the current
contents as a backup file if any changes were made since it
was most recently loaded. Use this button to read a log
file generated by another process, such as a WAVE analysis
Add WAVE adds an entry containing the record name and the contents
of the description field to the log file. If an annotation or
marker within the signal window has been selected (i.e., if it
is shown marked with a box), WAVE records the time of that
annotation in the log entry; when the entry is redisplayed,
WAVE selects the same annotation again. Otherwise, WAVE
records the times in the lower left and right corners of the
Replace WAVE replaces the description attached to the current log
entry with the current contents of the description field. It
does not create a new entry (use the `Add' button for that
Delete WAVE deletes the current entry from the log, and displays the
next entry if it exists.
Edit This button is currently non-functional.
|< WAVE shows the first log entry.
<< WAVE reviews each entry in the log file in reverse order,
pausing 5 seconds between entries. While a review is in
progress, only the Pause button is enabled.
< WAVE shows the previous log entry.
Pause WAVE stops the log review that was begun by the `<<' or `>>'
button. This button is disabled unless a review is in
> WAVE shows the next log entry.
>> WAVE reviews each entry in the log file, pausing 5 seconds
between entries. While a review is in progress, only the
Pause button is enabled.
>| WAVE shows the last log entry.