R: Central low level function of the zoom package.
zoomplot.zoom
R Documentation
Central low level function of the zoom package.
Description
This function allow to replot the current or a saved plot
with specific boundaries, magnification factor and
possibly arround a user defined x/y.
Usage
zoomplot.zoom(xlim = NULL, ylim = NULL, fact = NULL,
rp = NULL, x = NULL, y = NULL, xlimfn = NULL,
ylimfn = NULL, ...)
Arguments
xlim
A vector with min and max x
ylim
A vector with min and max y
fact
A scalar giving the magnification factor (>1
brings you closer)
rp
A previously recorded plot with recordPlot().
With all the corresponding warnings in ?recordPlot.
x
x of a fix point when rescaling, by default the
center.
y
y of a fix point when rescaling, by default the
center.
xlimfn
a function using x, y and/or fact to
generate new x lim if NULL and xlim/ylim not given will
use multipancPoint
ylimfn
a function using x, y and/or fact to
generate new y lim, if NULL will use xlimfn
...
Additional parameters not implemented, just
in case.
Details
This function is not necessarily easy to use by hand. It
is designed to work well when called from higher level
functions. End user should always use zm().
Value
Not guaranted for now.
Note
This function is the heart of the zoom package and the
one that can be. affected by R version changes. It is
inspired by the zoomplot function in TeachingDemos
package