spatstatLocator {spatstat.utils} | R Documentation |
Graphical Input
Description
This is an alternative to the locator
function. It contains a workaround for a bug that occurs in
RStudio
.
Usage
spatstatLocator(n, type = c("p", "l", "o", "n"), ...)
Arguments
n |
Optional. Maximum number of points to locate. |
type |
Character specifying how to plot the locations.
If |
... |
Additional graphics parameters used to plot the locations. |
Details
This is a replacement/workaround for the locator
function in some versions of RStudio which do not seem to
recognise the option type="p"
.
See locator
for a description of the
behaviour.
Value
A list containing components x
and y
which are vectors
giving the coordinates of the identified points in the
user coordinate system, i.e., the one specified by par("usr")
.
Software Testing
Programmers may like to know that
code which depends on spatstatLocator
can be tested in a non-interactive session,
if the coordinates are previously queued using
queueSpatstatLocator
.
Author(s)
Adrian Baddeley Adrian.Baddeley@curtin.edu.au, Rolf Turner rolfturner@posteo.net and Ege Rubak rubak@math.aau.dk.
See Also
Examples
if(interactive()) locator(1, type="p")