Based on the rake angle, focal styles are assigned
an index and assigned a color by foc.color
Usage
foc.color(i, pal = 0)
Arguments
i
index to list of focal rupture styles
pal
vector of colors
Value
Color for plotting, either a name or HEX RGB
Details
Since the colors used by focal programs are arbitrary,
this routines allows one to change the coloring scheme
easily.
foc.icolor returns an index that is used to get the color
associated with that style of faulting