SUMMARY

Plots a record section of the files in the stack file list.

SYNTAX

[P]LOT[R]ECORD[S]ECTION [ options ]

where options are one or more of the following:

[L]ABLES ON | OFF | headerfield
[O]RIGIN [D]EFAULT | [R]EVERSED
[R]EFERENCELINE ON | OFF
[S]IZE v
[W]EIGHT ON | OFF
[P]OLARITY ON | OFF
[C]URSOR ON | OFF
[RED]UCED ON | OFF | [P]HASE phase_name | [V]ELOCITY velocity_value
[A]SPECT ON | OFF
[ORIE]NT [P]ORTRAIT | [L]ANDSCAPE
[T]TIME ON | OFF | [D]EFAULT | TEXT
[X]LABEL ON | OFF | [D]EFAULT | TEXT
[Y]LABEL ON | OFF | [D]EFAULT | TEXT
PRINT {pname}

INPUT

LABELS ON | OFF:
	Turn the file labeling option on or off. When this option is on, each file is labeled with header field.
LABELS headerfield:
	Turn the file labeling option on and set the name of the header field.
ORIGIN DEFAULT | REVERSED:
	In portrait mode, distance is along the y axis and default puts the distance origin at the top left corner. In landscape mode, distance is along the x axis and default puts the distance origin at the bottom left corner.
REFERENCELINE ON | OFF:
	Turn reference line option on or off. When this option is on, a vertical dotted line is drawn at the distance property value for each file.
SIZE v:
WEIGHT ON | OFF:
	Turn the file weighting option on or off.
POLARITY ON | OFF:
	Turn the file polarity option on or off.
CURSOR ON | OFF:
	See below.
REDUCED ON | OFF | VELOCITY number | PHASE name:
	Reduced travel time curves can be computed relative to a specific velocity or a phase from the traveltime curves. See SSSTRAVELTIME.
ORIENT portrait | landscape:
	In portrait mode, horizontal axis indicates time and the vertical axis indicates event to station distance. In landscape mode, the horizontal axis indicates the event to station distance and time is along the vertical axis.
TTIME ON | OFF | DEFAULT | TEXT:
	Turn traveltime curves on. Traveltime curves must have been computed with the traveltime command.
XLABEL ON | OFF | DEFAULT | TEXT:
	Turn xlabel on and/or set xlabel text.
YLABEL ON | OFF | DEFAULT | TEXT:
	Turn ylabel on and/or set ylabel text.
PRINT {pname}:	Print the resultant plot. If pname is specified, print to named printer, else use default printer.

DEFAULT VALUES

PLOTRECORDSECTION LABELS filename ORIGIN default REFERENCELINE on
SIZE 0.1 WEIGHT on POLARITY on ORIENT portrait REDUCED off
CURSOR off TTIME off

DESCRIPTION

This command plots the files in the stack file list in a record section format. The effect of a particular velocity model can easily be seen with this plot. In portrait mode, the x axis is time, the y axis is epicentral distance. Landscape mode reverses these axes. The zero amplitude of each file is plotted at its epicentral distance along the distance axis. A distance must be defined for all files in the stack file list for this plot to be generated. The distance can come from the header or it can be defined in the DISTANCE option of the GLOBALSTACK, ADDSTACK, or CHANGESTACK command. The DISTANCEWINDOW and TIMEWINDOW commands control how much data will be displayed. The DISTANCEAXIS and TIMEAXIS commands control the size of each axis and thus the aspect ratio of the complete plot. Dynamic delays are controlled by the use of the VELOCITYMODEL command. A line showing the effects of a second velocity model is also controlled by the VELOCITYMODEL command. A velocity rosette showing the effects of other velocities can be placed on this plot. It is controlled by the VELOCITYROSET command. Static delays if they have been defined are also applied to each of the signals.

CURSOR ON MODE

In cursor on mode two additional functionalities are available: zooming and apparent velocity determination. The zoom capability requires the user to specify where to crop the picture. The user does this by moving the cursor to one corner of the desired display area and typing c1 (no mouse click is needed) and moving the cursor to the opposite corner and typing c2. When the user types c2, plotrecordsection replots the data including only those data files which lie within the distance window, and cutting off all the data points which fall outside the time window.

The user can type o (the letter 'o') to replot the original. Zoomed plots can be nested to five levels (ie, you can zoom a previously zoomed plot, entering o causes prs to unzoom one level and replot). The cursor on option also allows the user to measure apparent velocity by moving the cursor and typing v1 and v2 to mark the points. Once the v2 is selected, the apparent velocity is printed on the output device and stored in a blackboard variable, vapp. Multiple v2 values can be set but only the latest will be stored in the blackboard variable. While the cursor is on, the available commands in the plot window are c1, c2, v1, v2, and q which quits cursor on (q returns control to the sss subprocess).

SEE COMMANDS

GLOBALSTACK. ADDSTACK, CHANGESTACK DISTANCEWINDOW, TIMEWINDOW, DISTANCEAXIS, TIMEAXIS, VELOCITYMODEL, VELOCITYROSET, FILENUMBER