Overplots using oplot on to the GBT plotter's surface. It also
remembers the x and y values so that they can be replotted as needed
(e.g. the x-axis changes). Overplots, if toggled off, are
automatically toggled on by a call to gbtoplot.
Keywords |
color
in, optional
long integer (def. !g.oplotcolor)
|
The color of the line to be plotted.
|
chan
in, optional
boolean
|
When set, the x axis is
assumed to be in channels and a conversion to the existing x axis is
necessary to plot them. That conversion is done using the header
information of the primary plot (the argument to the most recent
show).
|
index
out, optional
variable
|
Returns the index
associated with this oplot. This index can be used to clear this
over plot using clearoplots. Note that once an index is cleared,
subsequent indexes are renumbered - i.e. there are never any gaps in
in index number.
|
idstring
in, optional
string
|
A string that can be
used to identify this oplot and thereby group oplots together. This
is most useful with clearoplots to remove just those oplots with the
same idstring. Withing GBTIDL, all internal id strings begin with
two underscores so that they are less likely to conflict with
user-defined idstrings. The default is ''.
|