SAC Command Reference Manual

PICKS

SUMMARY

Controls the display of time picks on most SAC plots.

SYNTAX

PICKS {ON|OFF} {pick type},{WIDTH v},{HEIGHT v}

where pick is one of the following:

O|A|F|Tn, n=0...9

where type is one of the following:

VERTICAL | HORIZONTAL | CROSS

INPUT

PICKS ON:Turn on pick display.
PICKS OFF:Turn off pick display.
pick:The name of a SAC time pick header variable: ,BREAK O|A|F|Tn, n=0...9
VERTICAL:A vertical line at time pick. Pick id at bottom right of line.
HORIZONTAL:A horizontal line at the data point nearest the time pick. Pick id is placed above or below the line.
CROSS:A vertical line at the time pick and a horizontal line at the nearest data point. Line lengths depend on WIDTH and HEIGHT.
WIDTH v:For CROSS or HORIZONtaLchange width of pick display to v. (Default: 0.1 of full plot width)
HEIGHT v:For CROSS, change height of pick display to v. (Default: 0.1 of full plot height)

DEFAULT VALUES

PICK ON VERTICAL.

DESCRIPTION

This command controls the display of time pick information on most SAC plots. These time picks identify previously defined times of interest such as phase arrivals, event origin, etc. When this display is on, each defined time pick is displayed on the plot at the time of the pick with a time pick id near the line. The time pick id is a header variable 8 characters in length. KA, KF, KO, and KTn are the time pick ids for A, F, O, and Tn respectively. If the time pick id is not defined, the name of the pick itself is used. Each pick may be displayed as a vertical line, a horizontal line, or a cross.

EXAMPLES

To display time picks T4, T5, and T6 as crosses and to change the height and width of the crosses:

SAC> PICKS T4 C T5 C T6 C W 0.3 H 0.1

Other time pick displays will remain unchanged.

LATEST REVISION

January 8, 1983 (Version 8.0)