R: Plot a Focal Mechanism from SDR

SDRfoc {RFOC} | R Documentation

## Plot a Focal Mechanism from SDR

### Description

Given Strike-Dip-Rake plot a focal mechanism

### Usage

    SDRfoc(s, d, r, u = FALSE, ALIM = c(-1, -1, +1, +1), PLOT = TRUE)

### Arguments

`s` | strike, degrees
`d` | dip, degrees
`r` | rake, degrees
`u` | logical, TRUE=upper hemisphere
`ALIM` | bounding box on plot
`PLOT` | logical, TRUE=add to plot

### Details

The ALIM vector allows one to zoom into portions of the focal mechanism for details when points are tightly clustered.

### Value

MEC structure

### Note

Basic MEC List Structure

az1 | azimuth angle plane 1, degrees
dip1 | dip angle plane 1, degrees
az2 | azimuth angle plane 2, degrees
dip2 | dip angle plane 2, degrees
dir | 0,1 to determine which section of focal sphere is shaded
rake1 | rake angle plane 1, degrees
dipaz1 | dip azimuth angle plane 1, degrees
rake2 | rake angle plane 2, degrees
dipaz2 | dip azimuth angle plane 2, degrees
P | pole list(az, dip) P-axis
T | pole list(az, dip) T-axis
U | pole list(az, dip) U-axis
V | pole list(az, dip) V-axis
F | pole list(az, dip) F-axis
G | pole list(az, dip) G-axis
sense | 0,1 to determine which section of focal sphere is shaded
M | list of focal parameters used in some calculations
UP | logical, TRUE=upper hemisphere
icol | index to suite of colors for focal mechanism
ileg | Kind of fault
fcol | color of focal mechanism
CNVRG | Character, note on convergence of solution
LIM | vector plotting region (x1, y1, x2, y2)

### Author(s)

Jonathan M. Lees <jonathan.lees@unc.edu>

### See Also

CONVERTSDR

### Examples

    M = SDRfoc(-25, 34, 16,u = FALSE, ALIM = c(-1, -1, +1, +1), PLOT=TRUE)

[Package RFOC version 3.4-3 Index]