NAME
dbheli - Make helicorder type plot of waveform
SYNOPSIS
dbheli dbname sta chan tstart twinline
nlines scale [-f filter]
[-o dborigin]
[-ps psfile]
SUPPORT
Contributed code: NO BRTT support.
THIS PIECE OF SOFTWARE WAS CONTRIBUTED BY THE ANTELOPE USER COMMUNITY. BRTT DISCLAIMS ALL OWNERSHIP, LIABILITY, AND SUPPORT FOR THIS PIECE OF SOFTWARE.
FOR HELP WITH THIS PIECE OF SOFTWARE, PLEASE CONTACT THE CONTRIBUTING AUTHOR.
DESCRIPTION
dbheli
makes a PostScript output file that contains a helicorder
style display of a single station-channel. The output file
name begins with
dbheli. and ends with
.ps and
is unique to avoid collisions with previously created PostScript
files.
Command line arguments
-
dbname
The name of the input database.
-
sta
The station code.
-
chan
The channel code.
-
tstart
The start time for the display.
-
twinline
The time window for each line in the display in seconds.
-
nlines
The number of lines in the display.
-
scale
The amplitude scale factor in data units per inch.
The data units are defined within the database and are
typically something like nm/sec.
OPTIONS
-
-f filter
A filter specification. This filter is applied to
the waveform before it is plotted.
The filter specification is a character string like
"BW 0.1 5 1.0 5" which would be a 5 order butterworth filter
with a low corner frequency of 0.1 hz and a high corner
frequency of 1.0 hz. Note that specifications such as
this with embedded blanks must be quoted in the command line.
This argument is optional and if not specified, then
no filtering is done.
-
-o dborigin
The name of a database for displaying predicted event P-times.
This argument is optional and if not specified, then
no predicted times are displayed.
-
-ps psfile
The output PostScript file name.
This argument is optional and if not specified, then
a unique PostScript file name is created by the program.
EXAMPLE
: 13200 seconds of data on 10 lines for station AAK channel BHE
% dbheli /opt/antelope/data/db/demo2/demo2 AAK BHE \
793266000.00000 1320 10 100000 \
-display -ps /tmp/a.ps
% lp /tmp/a.ps
: 24 hours of data, 1 hour per line for station PFO channel HHZ
% dbheli anza PFO HHZ 2003:021:00:00:00 3600 24 10000
AUTHOR
Danny Harvey
Antelope User Group Contributed Software