Interactively grabbing multiple points from an image

[aravind-j]

Is it possible to have an equivalent of graphics::locator in imager to grab coordinates of multiple points?

plot(boats)
locator(n = 4)

It is possible with grabPoint, but it selects only one point at a time. For multiple points, the image needs to be opened and closed multiple times.

grabPoint(boats)

This will be useful for large images where imager::display is faster than plot.

[aravind-j]

This issue has already been raised in the archived version of imager by @dahtah.

dahtah#160

[asgr]

This is a pretty bespoke use case, so I'd suggest as a first option you try implementing something and submit a pull request. As new maintainers we are much more focussed on fixing bugs for now.